28 January, 2023

Best 7 Chat SDK for Android & iOS App (Latest Listings in 2022)

chat sdk tools for android & ios
Home » Mobile Apps » Best 7 Chat SDK for Android & iOS App (Latest Listings in 2022)

If you are here to checkout for the best instant messaging SDK for web and mobile apps, then you guys must have a good awareness of what this is all about?

Thus, rather than moving with the same flavorless beginning as it’s for any other blog. Let’s have a straight cut view over the variety of instant messaging Chat SDK providers that can grab and boost your business.

Any how, you might have a general idea of them but this blog will expose the most out of them when it comes to their origin in the industry, platforms that are with their pricing data, etc.

To start with let’s have a quick view over the recent data metrics

Growth Metrics of Instant Messaging API & SDK

Well, today in the current situation build a chat app have made an immense presence across the marketplace. Moreover, the companies are approaching them to enhance and boost their businesses.

According to a statistical approach it was found that globally the real time communication market by $2.75 billion in 2019. And has been expected to reach $45.91 billion by 2027. All these are possible real time communication capabilities.

As many customers as many queries!”

These quotes state that every customer is in the need for the Best instant messaging SDK App. And with this never-ending thirst they still thrive for the best.

Let’s have a detailed move over some of the top 5 chat SDK providers iOS and Android that really makes them stand out from the crowd.

Top  7 Chat SDK Providers Ranked & Reviewed in 2022

Let’s explore wider with a clear vision as have mentioned in the above session with an open mind about the facts.

1. CONTUS MirrorFly: #1 Chat SDK for Web and Mobile Platform

CONTUS MirrorFly was established in the year 2008 by the group of CONTUS Companies. Previously, it has made its appearance in the market as “ContusFly” but, later the brand has been renamed as “CONTUS MirrorFly.”

CONTUS MirrorFly Chat SDK
MirrorFly Chat SDK for android ,iOS Apps
  • Founded by : 2008
  • Platform : iOS, Android, & Web Applications
  • Price : One -time license cost

It has started its business with texting application development that parallely gave a chance to build chat SDK ios,android for business.

It has stretched over it’s wider wings across voice, video, and messaging applications. Since it is based on the SaaP model it is available at a one time license cost.

The core value of this solution is to act as a connecting bridge between the customers and businesses. Therefore, it has been considered as the best chat SDK android,iOS.

Features of CONTUS MirrorFly

  • 1 million + concurrent user engagement around the world
  • 100% customization with over 150+ exciting features
  • Till date successfully obtaining an unbreakable trust of over 40+ use cases across the world
  • Highly flexible and adaptable that can be integrated into any existing application including iOS, Android, and web applications with ease
  • It provides a perfect mode of hosting infrastructure with an on-premises and on-cloud as per the business needs
  • Considered to be the best instant messaging chat software for cross platform
  • High end of scalability and security with undeniable protocols

CONTUS MirrorFly has been recognized as the best real time Chat API & SDK for mobile and web application

How Much Does it cost?

CONTUS MirrorFly tries to be a supportive hand for many struggling businesses, i.e., have made it’s solution available at one time license cost wherein you can utilize only those features that are required for your business.

And CONTUS MirrorFly has a collection of over 150+ real-time chat features to be chosen from. Well, when you are looking out for the best Chat SDK for iOS & Android app or for any Enterprise Chat Software with a secure end.

Then it’s better to get some exposure from other brands who use CONTUS MirrorFly!

For Example; TrueID, ICICI Bank, Travelsquare, Cellcard, Etisalat, stc, MyGate, and more.

Make your chat app stand out & Test Drive Our API Now?


2 . Sendbird – A Complete Instant Messaging API Platform

Sendbird is a leading chat platform for Android & web application which was established in the year 2012 and is well known for real time chat and messaging platforms.

Best Mobile Chat SDK
Sendbird Instant Messaging SDK
  • Founded by : 2012
  • Platform : Mobile and Web Applications
  • Price : Free & Paid (Monthly Subscription )

Features of Sendbird

  • Most scalable chat backend, customizable user friendly UI with client-side SDKs
  • Reliable infrastructure to built on Websocket servers
  • Premium messaging experience Active support is important
  • First android chat  SDK that officially supports Xamarin
  • Pre-built UI for the major platforms
  • Migration API for customers who use other chat services
  • Adaptable message format ex) JSON, XML

Sendbird has been noted as a leading chat solution with real time chat and messaging platforms for mobile and web applications.

How Much Does it cost?

Chat Pricing
Starter 5k (get started with chat) — $399/Month
Pro 5k (Most features for growing businesses)- $799/Month

Well, it’s always better to get some exposure from other brands who use Sendbird!

For Example: Servicenow, Delivery Hero, reddit, TELADOC, Hinge, PayPay

3. Pusher: A Leader in Chat API & SDK

Pusher was established in the year 2011 by a group of Pusher Companies. It is usually a developer tools organization that builds collaboration and real time messaging API powering applications around the world.

chat sdk android
Pushed Chat SDK for ios
  • Founded by : 2011
  • Platform : iOS, Android, & Web Applications
  • Price : Free & Paid (Monthly Subscription)

It contributes in creating a scalable instant messaging application for iOS, Android & web.

It makes the task easier by utilizing its core product, developers, channels with it’s most interactive features.

Features of Pusher

  • Provides a developer-driven chat feature to actualize messaging features.
  • It’s codes build a simple path for developers by wrapping up the ChatKit along.
  • Provide complete control over the users who have access to a room.
  • Provides updates once users change their status as online/offline.

Pusher’s ChatKit has grabbed most of the attention by being adaptable to add chat SDK to any Android and iOS. It allows you to have 1–1 and group chat rooms to your application.

How Much Does it cost?

All it’s pricing are available in a monthly subscription

Messages per day — 200K
Concurrent Connections — 100
Level of Support -Standard
Monitoring Integration — No
Price — Free

Start Up
Messages per day — 1 Million
Concurrent Connections — 500
Level of Support -Standard
Monitoring Integration — No
Price — $49/month

Let’s have an exposure from other brands who use Pusher!

For Example: GitHub, MailChimp, Intercom, The New York Times, ABC, Draft Kings.

4. Twilio: A Communication API Provider

Twilio was founded in the year 2008 by Twilio group of companies and has grown faster than expected.

Twilio is the popular cloud communication service that permits to make and receive phone calls and send and receive text messages by making use of web service APIs.

in app messaging provider
twilio android chat sdk
  • Founded by : 2008
  • Platform : iOS, Android
  • Price : Free & Paid (Monthly Subscription)

It has built the foundation with the great investors such as Bessemer, Redpoint, and Union Square.

Moreover, it can easily integrate the phone calls and SMS messages into your applications.

Features of Twilio

  • Foremost SMS and WhatsApp messaging that governs the telephony infrastructure web service in the cloud
  • Reached the sky much quicker by making an excellent growth of more than $200 million in the venture funding.
  • Recently has taken a baby step when it comes to audio and video chat app.

Twilio is the best cloud communication service that allows the users to get connected via phone calls by making and receiving calls.

How Much Does it cost?

Twilio’s Pricing — All it’s pricing are available in a monthly subscription, you can have a glance over here

Flexible pricing models
Per-hour pricing $1
Per-month pricing $150

Autopilot pricing
Voice ($0.40 per minute)
Messaging ($0.0001 per message)
Chat ($o.001 per message)

For Example; Uber, Dr+ on Demand, Redfin real estate platform, Lululemon, Zendesk, Twitch, and more.

5. PubNub: Real Time In-Messaging Platform

PubNub was founded in the year 2010. PubNub is one of the secure data Stream Network across the world that is much easy to use.

Here, the API allows people from a variety of locations to get connected, measure, manage and scale the real-time in-app chat SDK solution apps and loT devices.

top chat sdk services
best chat sdk
  • Visit WebsitePubNub.com
  • Founded by : 2010
  • Platform : iOS, Android
  • Price : Free & Paid (Monthly Subscription)

Features of PubNub

  • It is there with more than 70 SDKs for each platform.
  • 250 ms of global data transfer time
  • with high end scalability
  • provides low-latency real-time messaging apps for Android and iOS
  • Messages can be sent easily among two devices in fraction of seconds
  • can build amazing and simple API alongside with SDKs to connect and can scale real-time Team Chat Software on the PubNub DSN or Data Stream Network

PubNub is a leading secure worldwide Data Stream Network that is much easy to use.

How Much Does it cost?

MAU pricing for basic in-app chat

  1. Free ($0/month) — can try upto 200 MAU
  2. Starter at $49/month plus MAUs
  3. Pro — contact sales

For Example: SWIGGY, Medx, PELOTON, match,Life360, PLUTO

6. Cometchat – Pro SDK for Mobile Apps

CometChat is a real-time communication platform that offers chat widgets, APIs, SDKs and UI Kits to develop reliable chat infrastructures for apps and websites. Cometchat delivers simple and safe chat solutions with interactive features that help apps achieve high user engagement.

With a diverse range of chat solutions and advanced innovations in the Chat SDK market, Cometchat has established itself as one of the leaders in the industry.

  • Founded by : 2009
  • Platform : iOS, Android
  • Price : Free & Paid (Monthly Subscription)

Features Of CometChat

  • Highly flexible and scalable APIs for creating a 
  • Offers Chat widgets like stickers, polls and chat masking features
  • Provides UI kits with customization features
  • Chat SDKs available for integration in different languages like Flutter, JavaScript, Swift, React JS, etc. 
  • Enable Webhooks and Bots to allow apps perform assigned tasks and schedule notifications.

CometChat makes connections and collaborations easy by providing Chat SDK and API integrations for mobile and web applications

How Much Does It Cost?

  • Startup Pack: $ 149/ mo
  • Growth Pack: $ 399/ mo
  • Scale Pack: $ 749/mo
  • Enterprise Pack: Custom Pricing
  • Free Trial: Available for all packages

Brands that use CometChat: Swedbank, Calix, Endeavor, Udaan, Nagarro

7. Getstream – In app Chat SDK for Mobile Apps

GetStream offers developers advanced chat components needed to establish in-app messaging for an interactive user experience. Stream avails unique chat solutions to build a scalable app that can give users a completely satisfied messaging experience.

GetStream provides developer-friendly chat SDKs for customer in-segments like healthcare, finance and Education.

  • Founded by : 2014
  • Platform : iOS, Android
  • Price : Free & Paid (Monthly Subscription)

Features Of Getstream

  • Simple and Clean UX that helps users interact with your chat apps with ease
  • Connects millions of users with reliable chat SDK components 
  • Avails over 5 million concurrent connections via a single channel
  • Provides ‘Teams’ option to divide users and channels into unique groups while maintaining the security of the app
  • Offers demos for social messenger, gaming live-streams, virtual events and more

Stream (getstream.io) offers users an extensive chat infrastructure to build, scale and personalize their messaging experience.

How Much Does It Cost?

Chat Pricing

  • Startup Pack: $ 499/mo
  • Standard Pack: $1,299/mo
  • Premium Pack: $2,299/mo
  • Enterprise Pack: Custom Pricing
  • Free Trial: Available

Brands that use Stream: Hopin, Match, Adobe, Imgur, SoundCloud, PGA, Master Class, Crunchbase, Strava, Gojek


Coming to the end, this blog has covered almost all the end-to-end points of the most popular live chat service providers in the current marketplace.

Now, i hope you would have got a better clarity over the entire search criteria as per your needs.

To be frank now it’s up to you to choose for the best among these above mentioned one’s and have your business with flying colors.

All the best!

If You’re Ready To Intergrate Instant Messaging Solution in Your Web and Mobile Apps.

Let’s Start Your Free Trial 

Alex Sam is a digital marketer by choice & profession. He munches on topics relating to technology, eCommerce, enterprise mobility, Cloud Solutions and Internet of Things. His other interests lies in SEO, Online Reputation Management and Google Analytics. Follow Me Socially: Habr , Dev.to & Viblo .


  1. Khurram Reply

    : Hi.. i need peer-to-peer chat system to connect the user with experts. we need real time massaging, audio call and video call. our requirements are as followed; Real Time Chat with unique UI Template; 1. push notifications 2. offline / online status 3. Last seen status 4. Send Mark 5. Delivery mark 6. Read Mark 7. Audio Call 8. Video Call 7. Chat, Audio Call and Video Call History in Admin portal or your provided portal. MirrorFly Chat SDK is fit all my requirements?

  2. Rostyslav Reply

    Hi! I’m doing a research on chat SDK tools and we’re considering MirrorFly. I have a few questions related to that: 1. Do you have running up servers? So we can use chat as a service without necessary to add it to our infrastructure & set up deploy process? 2. We’re interested in integrations with our platform (kind of using some features from chat). For that I suppose we need to dig into source code. So question is what language we can use to extend this functionality? 3. Where can I find tech documentation?

  3. Trivedi Reply

    I want to integrate live chat on my app. Wanna know about MirrorFly chat SDK pricing and have some queries on the features.

  4. NELLY Reply

    Hello there. I will like to enquire about integrating your MirrorFly chat SDK to my online school website, i want teachers to be able to do their lesson with our students on our platform and i want teachers to be able to record their self introduction video on our platform by using our platform to record themselves for a 1-2mins self introduction video. We will also like to be able to do screensharing with our students , whiteboard etc… Please get back to me asap or someone can give me a call on +27814203203 thanks

    1. Alex Sam Post author Reply

      Hello Nelly, Your project sounds great and of course the features that you were looking out for are really awesome. Our instant messaging API and SDK’s are capable enough to provide you with your needs as we offer the option of custom features that are made available as per specific business need. You can feel free to contact us to set an appointment have you queries clarified with our dedicated and potential team. Thank you!

  5. tanvir Reply

    Hi, We have an eCommerce platform and we are planning to integrate audio & video calling(including group calling feature) features with our platform. Right we are trying to develop this feature by ourselves but it’s time-consuming. That’s why we are planning to use any 3rd party instant messaging api plugins with our platform. If you have any more query please let me know.

    1. Alex Sam Post author Reply

      Hello Tanvir, Great to know about your project – it really sounds great! Yes, of course building an application from scratch is really time consuming as well as costly. But you can be relaxed enough by relying on our real time chat API and SDK’s. Our solution is capable enough to fullfil all your requirement with custom features as per your business needs. So, feel free to contact us to set an appointment to proceed further. Thank You!

  6. John Reply

    Looking for a Group Video calling & In-app messaging API,SDK for an existing online Teaching/Education Platform thats built with PHP/Laravel.

    1. Alex Sam Post author Reply

      Hello John, Great to know about project and your concerns with regards to group video calling and in-app messaging API and SDK. I am glad to tell you that our real time chat solution does support your requirement and something more than that with custom features as per business needs that differs on demand. So, to have more clarity over our solution, feel free to set an appointment to proceed further. Good Luck!

  7. kumar Reply

    we want chat sdk to integrate an ios and android app. Our requirement is that we want maximum howm many user can connect on video call?

    1. Alex Sam Post author Reply

      Hello Kumar, Great to know about your requirement with your project. Our messaging API and SDK supports a variety of requirements as per the business models. So, your requirement will be taken care with ease. To have more calrity on video call user engagement and other related stuff, it’s better to set an appointment to proceed further with your queries. Thank You!

  8. rios Reply

    Hello, I am developing an app in Android Studio, and I would like it to be able to call, only make outgoing calls to landlines through SIP trunk. Could you guide me a bit about whether it would be possible and how much it would cost to make such calls. In this case they would be calls from a smartphone with android, to landlines for example an airline, could it be possible to use an instant messaging SDK from this provider to make them? Android Studio has the possibility of incorporating Skype SDK, but I think it would not meet what I am looking for, thank you very much in advance

    1. Alex Sam Post author Reply

      Hello Rios, You ideas seems to be very nice and good luck for your project. Yes! our voice chat API and SDK’s are capable enough to fullfil your demands with regards to SIP/VoIP calling and much more. You can get any of your feature being customed as per your business requirement. So, feel free to contact us and set an appointment to have more clarity concerning your queries to proceed further. Thank You.

    1. Alex Sam Post author Reply

      Hello Harry, Yes! our real time messaging SDK and API is available with over 150+ chat features that are easy to integrate into any mobile or web app. Moreover, you can utilize our custom features too as per your business requirements. With regards to the pricing, you can purchase our solution by making one time payment. To have more clarity about the pricing model, feel free to drop your details for us to set an appointment to proceed further. All the best!

  9. sagar Reply

    We are creating e-commerce type App in iOS and we want to implement video conferencing and real time chat feature in it. We want use MirroFly instant messaging API for it & want to know more about implementation & pricing model.

    1. Alex Sam Post author Reply

      Hello Sagar, Your project sound cool – an e-commerce like app is something great wherein our real time solution can support you will all chat, voice and video features that includes video conferencing, instant messaging, group chat, etc. Concerning price, our real time messaging API and SDK’s are available at one time cost. To have more clarity with pricing model you can drop your details with us to set an appointment for further move. Good Luck!

  10. baba Reply

    We are interested in building achat a pplication for multiple current users. What’s the price for the messaging API and are there any monthly subscriptions involve.

    1. Alex Sam Post author Reply

      Hello Baba, Nice to hear from you and glad to know about your interest in building your chat app with us. Our solution is available at one time license cost wherein you have to pay only for the custom features with no monthly subscription. You can own the product once purchased. To have more clarity kindly drop your details with us to set an appointment to proceed further. Thank you!

  11. saleem Reply

    hello there, need to add in app chat in existing app used for schools , and video confrencing for whole classrooms please let me know pricing for in app chat sdk both ios and android

    1. Alex Sam Post author Reply

      Hi Saleem, Glad to know about your school app and your interest in our solution. To brief about our in app chat API and SDK, our solution is a real time communication with voice, video and chat features which is 100% customizable and can be easily integrated into any existing mobile or web app. With regards to pricing our solution is available at one time cost. To have more clarity you can drop your detail for us to set an appointment to proceed further. Thank you!

  12. brian Reply

    Hi! We are a startup in the professional networking sector. We are interested in your Chat & video call solution. Similar to professional networking platforms like Airmeet and Brella, we are looking to put heavy emphasis on helping our users make new valuable connections through video call. I’m quite intrigued by your pricing structure breakdown as well as the video monetization feature. may i know mirrorfly Chat API and SDK cost its available at one license cost

  13. Leon Reply

    I need a simple communication system for no more than 3 to 4 participants in a video chatsession. Screen sharing by one major participant to another participant when there are only 2 participants.I want price details for MirrorFly API,SDK

  14. Abhay Reply

    need to understand following in context with inapp messaging SDK ; 1. complete list of supported features 2. user managmenet integration feasibility 3. technology (http , socket or something else?) 4. customization 5. pricing 6. deployment models

  15. Anastasia Reply

    Hello, We’re a small team starting to work on consulting software and looking for video/chat integrations. You seem to have what we’re looking for. Could you please share your pricing model and pricing details for Chat AP I and SDK so we could see if it fits the budget at all?

  16. ahmed Reply

    We need to integrate video/voice peer-to-peer chat on our existing app. what could be the costs? MirrorFly Messaging SDK fit for my business requirements

  17. didyk Reply

    Hi. I develop learn platform with many features and want to integrate Video Conferencing API. Can I get the price sheet for your product? And would be very good if I can pay for used time, not for a month. i need your Messaging API costs and hosting plan

  18. tunisha Reply

    We are developing a health care solution, so we need a Instant messaging API&SDK to continue the development of the communication module.

  19. Maria Reply

    Hi, we are a fintech company located in Singapore and Indonesia, we are looking for a in app messaging feature to do a customer live verification. Would be great if we can arrange time for a discussion. Thanks. and share you API & SDK price lists

  20. Manish Reply

    Hello , I am in need of a real time chat solution with video and voice calling for hospik. I am building a chat platform to connect healthcare providers to patients.

    1. Mohamed Shameem Reply

      Hi Manish, glad to hear that you are building a chat platform for connecting healthcare providers and patients. MirrorFly’s APIs and SDKs offers a wide range of chat features that include voice and video calling features capable of connecting users across your healthcare app with utmost security. Users can book appointmnents with doctors, send reports and avail virtual consults without any risk to the privacy of their health information. I’m sure our Sales team can get you many other details helpful for you. Do contact the team via our website. Wish all the best to you!

  21. zelijko Reply

    Greetings, I’m Zeljko we having healthcare platform, where users can easily book their chosen healthcare services. Our platfrom is under development and now we are looking for chat provider. On our platform users can start communication with healthcare providers and then in their profile can continue with it. Our developing team found your app which have api solution. This is in must as we would like to design chat on our own. As I was checking your features, I noticed you have also option for video calls. This is also interesting as we will offer telehealth services. Maybe there are also some other options you can suggest for our platform. We would like to speak with you about options and also to get your offer. Best regards, Zeljko

    1. Mohamed Shameem Reply

      Greetings from here Zelijko! It’s interesting to know about your healthcare platform with unique medical services for users. You are right that MirrorFly’s in-app chat APIs and SDKs offer interesting communication solutions. In particular, you will be able to establish fastest communication services like text mesaaging, voice calls and video conferencing among your app users. Patients can contact doctors directly via 1 to 1 calling features and video calls to avail the emergency support they require at critical situations. I’d recommend contacting our sales team to get the right advice on unique features that can perfectly fit your needs. Wish your app saves more lives!

  22. HANED Reply

    Hello, We are brain a digital agency of web and mobile application development in France. Our client wants to develop a dating application by realtime chat SDK, we are looking for a reliable and simple solution to make chat between different users (one-to-one, group). Can you send us your price list and integration documentation? Sincerely, HANED

  23. ravid Reply

    I would like to know more about pricing. I am looking for messaging sdk for web/android/iOS devices. And have limited yearly budget for using it – so I need to calculate. Could you provide me information, if the payments depends on video/audio calls duration? Or monthly payment based on used services?

  24. jake Reply

    Hi MirrorFly, My name is Jake, and I am a software engineer atcode. code has been trying to find a tool for messaging api off any device, and MirrorFly’s messaging API looks like a great option. Could I schedule a demo sometime later this week to learn more about the tool and ask some questions? Have a great day

  25. willis Reply

    Hello, my name is Willis and i am developing an chat app and i would like to use Mirrorfly chat SDK as my communication for my application. I am self funded and it is a startup. Im hoping we can talk more.

  26. stephen Reply

    We have a mobile application that we need to connect our drivers to our customers and also have both of them be able to chat with our support.so we need integrated MirrorFly Chat SDK for android app share me pricing list

  27. Mukesh Reply

    Need the SDk for my ios and android app . here i have list my requirements 1. customized chat SDk with one-time license cost and developer team.

  28. ravindran Reply

    Hi team, very interesting write up. Thanks for sharing. I want to develop chat app (something like whatsapp) but with added modern chat features (maybe kets say first one in market). Ill reveal that later but how much dies it cost to develop that chat app itself) and i’m looking for readymade chat SDK

  29. neda Reply

    We have an ios and an andriod application and we need a messaging sdk with an affordable price. Could you please tell us your prices, and is it possible to integrate it with a translation API.

  30. singh Reply

    Hi I am building a website for social cause/Charity and it is completely free. I am using my pocket-money to bring together students in science from minority backgrounds, so that they can form a community/network online. I am looking for a text-chat function only for my website, with a 5mb file attachment limit to send science articles, photos, etc between user accounts. What can you do for my charity please ? I really cannot pay monthly subscriptions or buy chat SDK. Please let me know thanks Dr Singh

    1. Mohamed Shameem Reply

      Hi Parker,MirrorFly will be able to offer the APIs and SDKs needed to create chat rooms for your users to interact. You may track and monitor user activity to ensure a safe communication space for your app users with the support of our features. There’s more that I could add on to suggest the best features for your app. However, I’d highly recommend you to get in touch with our sales team to be advised on your requirements right on time. Wish the best to you!

  31. aman Reply

    I am learning web development. I want to use messaging SDK for my chat app with following requirement 1-1 & group chat ,language translation,file and doc sharing ,whiteboard features .let me know MirrorFLy Chat SDK afford above features.looking forward your response

  32. lugo Reply

    I would like to know more about pricing. I am looking for instant messaging sdk for web/android/iOS devices. And have limited yearly budget for using it – so I need to calculate. Could you provide me information, if the payments depends on video/audio calls duration? Or monthly payment based on used services?

  33. yin Reply

    We are a contact center supplier in China. We serve small and medium-sized enterprises. Many Chinese companies are developing international business. We provide global contact center services for Chinese companies. We need chat sdk. We are reseller. Hope to cooperate with your company.

  34. sefa Reply

    Hello. We want to develop a mobile chat application using your infrastructure. Our number of users is around 2 million and it will only include chat and file sharing. What criteria do you base your pricing on? How much would your monthly pricing be for 2 million users? Regards, Sefa

  35. ahmed Reply

    I need a guide to how to build my mobile application using your chat sdk platform. In the pricing “Included upto 5000 mins ” is this number renews on monthly basis? how do you calculate the minute? e.g if the call was for 10 minutes, do you count it as 10 or 20 min?

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