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Top 20 Communication SDKs Used in iOS Apps on the Apple App Store
Last update: 13 Jun 2026 CET
App Store

Top 20 Communication SDKs Used in iOS Apps on the Apple App Store

We at 42matters have gathered a list of the most popular communication SDKs among iOS apps on the iOS app market.

Communication SDKs enable mobile app developers to integrate communication capabilities, such as messaging tools, video conferencing tools, or voice chat in their apps. This may include features such as messaging, voice calling, video calling, screen sharing, file sharing, and other communication-related capabilities.

This list is based on our analysis of the 2,300+ SDKs integrated in the vast mobile applications inventory of the Apple App Store. It provides a glimpse into the rich mobile application insights generated by 42matters’ technology. This data is available via our APIs, file dumps, Explorer, and SDK Explorer.

The intended purpose of this article is to assist app developers in their search for the perfect communication SDK to leverage in their app, as well as to give SDK developers insight into their biggest competitors and potential customers. The data collected by our technology may also serve as a useful tool for folks researching the wider mobile apps market.

The 20 most widely-integrated communication SDKs:

1st

OneSignal

Check “OneSignal” SDK Insights

Among all apps utilizing communication SDKs, 55.53% have integrated OneSignal. This accounts for 12.67% of app downloads within the communication SDK category.

OneSignal is a market leader in customer engagement. The SDK powers mobile and web push and email and in-app messages.

Total Apps
121.90k
App Store
App Share
55.53%
App Store
Apps
118.59k
Games
3.32k
Total Downloads
13.17b
App Store
Download Share
12.67%
App Store
App Downloads
10.30b
Game Downloads
2.87b

Use the 42matters SDK Explorer to find all apps that use OneSignal.

2nd

Firebase In-App Messaging

Check “Firebase In-App Messaging” SDK Insights

Among all apps utilizing communication SDKs, 12.81% have integrated Firebase In-App Messaging. This accounts for 14.13% of app downloads within the communication SDK category.

Total Apps
28.13k
App Store
App Share
12.81%
App Store
Apps
27.02k
Games
1.11k
Total Downloads
14.69b
App Store
Download Share
14.13%
App Store
App Downloads
13.44b
Game Downloads
1.25b

Use the 42matters SDK Explorer to find all apps that use Firebase In-App Messaging.

3rd

Zoom Zapp

Check “Zoom Zapp” SDK Insights

Among all apps utilizing communication SDKs, 11.02% have integrated Zoom Zapp. This accounts for 22.11% of app downloads within the communication SDK category.

Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. This SDK enables developers to add Zoom functionalities to their apps.

Total Apps
24.18k
App Store
App Share
11.02%
App Store
Apps
24.13k
Games
52
Total Downloads
22.98b
App Store
Download Share
22.11%
App Store
App Downloads
22.98b
Game Downloads
6.24m

Use the 42matters SDK Explorer to find all apps that use Zoom Zapp.

4th

Agora.io

Check “Agora.io” SDK Insights

Among all apps utilizing communication SDKs, 5.78% have integrated Agora.io. This accounts for 7.96% of app downloads within the communication SDK category.

Agora.io provides the building blocks for real-time voice and video communications through a simple and powerful SDK.

Total Apps
12.69k
App Store
App Share
5.78%
App Store
Apps
12.43k
Games
267
Total Downloads
8.28b
App Store
Download Share
7.96%
App Store
App Downloads
7.39b
Game Downloads
886.17m

Use the 42matters SDK Explorer to find all apps that use Agora.io.

5th

Zendesk

Check “Zendesk” SDK Insights

Among all apps utilizing communication SDKs, 3.47% have integrated Zendesk. This accounts for 14.96% of app downloads within the communication SDK category.

Zendesk builds software designed to improve customer relationships.

Total Apps
7.62k
App Store
App Share
3.47%
App Store
Apps
7.33k
Games
293
Total Downloads
15.55b
App Store
Download Share
14.96%
App Store
App Downloads
11.77b
Game Downloads
3.78b

Use the 42matters SDK Explorer to find all apps that use Zendesk.

6th

Twilio Programmable Video

Check “Twilio Programmable Video” SDK Insights

Among all apps utilizing communication SDKs, 3.14% have integrated Twilio Programmable Video. This accounts for 1.23% of app downloads within the communication SDK category.

The Programmable Video REST API allows you to control your video applications from your back-end server via HTTP requests.

Total Apps
6.89k
App Store
App Share
3.14%
App Store
Apps
6.87k
Games
17
Total Downloads
1.28b
App Store
Download Share
1.23%
App Store
App Downloads
1.23b
Game Downloads
50.82m

Use the 42matters SDK Explorer to find all apps that use Twilio Programmable Video.

7th

Tencent IM SDK (TUIKit)

Check “Tencent IM SDK (TUIKit)” SDK Insights

Among all apps utilizing communication SDKs, 3.06% have integrated Tencent IM SDK (TUIKit). This accounts for 7.42% of app downloads within the communication SDK category.

Total Apps
6.72k
App Store
App Share
3.06%
App Store
Apps
6.67k
Games
47
Total Downloads
7.72b
App Store
Download Share
7.42%
App Store
App Downloads
7.26b
Game Downloads
459.54m

Use the 42matters SDK Explorer to find all apps that use Tencent IM SDK (TUIKit).

8th

Chat SDK

Check “Chat SDK” SDK Insights

Among all apps utilizing communication SDKs, 1.70% have integrated Chat SDK. This accounts for 2.31% of app downloads within the communication SDK category.

Total Apps
3.74k
App Store
App Share
1.70%
App Store
Apps
3.69k
Games
43
Total Downloads
2.40b
App Store
Download Share
2.31%
App Store
App Downloads
2.39b
Game Downloads
13.32m

Use the 42matters SDK Explorer to find all apps that use Chat SDK.

9th

Twilio Programmable Voice (VoIP Client)

Check “Twilio Programmable Voice (VoIP Client)” SDK Insights

Among all apps utilizing communication SDKs, 1.65% have integrated Twilio Programmable Voice (VoIP Client). This accounts for 6.52% of app downloads within the communication SDK category.

The Programmable Voice SDKs allow you to add voice-over-IP (VoIP) calling directly into your web and native mobile applications.

Total Apps
3.63k
App Store
App Share
1.65%
App Store
Apps
3.63k
Games
2
Total Downloads
6.78b
App Store
Download Share
6.52%
App Store
App Downloads
6.78b
Game Downloads
4.14m

Use the 42matters SDK Explorer to find all apps that use Twilio Programmable Voice (VoIP Client).

10th

NetEase IM (NIM)

Check “NetEase IM (NIM)” SDK Insights

Among all apps utilizing communication SDKs, 1.46% have integrated NetEase IM (NIM). This accounts for 3.94% of app downloads within the communication SDK category.

Total Apps
3.20k
App Store
App Share
1.46%
App Store
Apps
3.06k
Games
134
Total Downloads
4.10b
App Store
Download Share
3.94%
App Store
App Downloads
3.14b
Game Downloads
958.50m

Use the 42matters SDK Explorer to find all apps that use NetEase IM (NIM).

11th

OpenTok Tokbox by Vonage

Check “OpenTok Tokbox by Vonage” SDK Insights

Among all apps utilizing communication SDKs, 1.34% have integrated OpenTok Tokbox by Vonage. This accounts for <1% of app downloads within the communication SDK category.

Vonage APIs (formerly Nexmo and TokBox) help growing startups and agile enterprises enhance customer experience and realize new business outcomes at scale.

Total Apps
2.94k
App Store
App Share
1.34%
App Store
Apps
2.93k
Games
5
Total Downloads
1.02b
App Store
Download Share
<1%
App Store
App Downloads
1.02b
Game Downloads
2.48m

Use the 42matters SDK Explorer to find all apps that use OpenTok Tokbox by Vonage.

12th

Jitsi 8x8 Meet

Check “Jitsi 8x8 Meet” SDK Insights

Among all apps utilizing communication SDKs, 1.16% have integrated Jitsi 8x8 Meet. This accounts for <1% of app downloads within the communication SDK category.

Total Apps
2.55k
App Store
App Share
1.16%
App Store
Apps
2.55k
Games
2
Total Downloads
622.31m
App Store
Download Share
<1%
App Store
App Downloads
622.30m
Game Downloads
6.64k

Use the 42matters SDK Explorer to find all apps that use Jitsi 8x8 Meet.

13th

PubNub

Check “PubNub” SDK Insights

Among all apps utilizing communication SDKs, <1% have integrated PubNub. This accounts for 1.13% of app downloads within the communication SDK category.

PubNub is a global Data Stream Network (DSN) and realtime infrastructure-as-a-service. Scale and manage realtime data streams for mobile and web apps with just a few lines of code.

Total Apps
1.99k
App Store
App Share
<1%
App Store
Apps
1.96k
Games
30
Total Downloads
1.17b
App Store
Download Share
1.13%
App Store
App Downloads
1.12b
Game Downloads
50.29m

Use the 42matters SDK Explorer to find all apps that use PubNub.

14th

Stream.io Chat

Check “Stream.io Chat” SDK Insights

Among all apps utilizing communication SDKs, <1% have integrated Stream.io Chat. This accounts for 1.32% of app downloads within the communication SDK category.

Total Apps
1.62k
App Store
App Share
<1%
App Store
Apps
1.61k
Games
3
Total Downloads
1.37b
App Store
Download Share
1.32%
App Store
App Downloads
1.13b
Game Downloads
246.15m

Use the 42matters SDK Explorer to find all apps that use Stream.io Chat.

15th

Sendbird UIKit

Check “Sendbird UIKit” SDK Insights

Among all apps utilizing communication SDKs, <1% have integrated Sendbird UIKit. This accounts for <1% of app downloads within the communication SDK category.

Total Apps
1.46k
App Store
App Share
<1%
App Store
Apps
1.46k
Games
1
Total Downloads
1.02b
App Store
Download Share
<1%
App Store
App Downloads
972.57m
Game Downloads
50.87m

Use the 42matters SDK Explorer to find all apps that use Sendbird UIKit.

16th

QuickBlox

Check “QuickBlox” SDK Insights

Among all apps utilizing communication SDKs, <1% have integrated QuickBlox. This accounts for <1% of app downloads within the communication SDK category.

QuickBlox is backend communication platform providing messenger API and SDK for websites and apps.

Total Apps
1.26k
App Store
App Share
<1%
App Store
Apps
1.25k
Games
3
Total Downloads
28.74m
App Store
Download Share
<1%
App Store
App Downloads
28.72m
Game Downloads
25.64k

Use the 42matters SDK Explorer to find all apps that use QuickBlox.

17th

100ms

Check “100ms” SDK Insights

Among all apps utilizing communication SDKs, <1% have integrated 100ms. This accounts for <1% of app downloads within the communication SDK category.

Total Apps
1.21k
App Store
App Share
<1%
App Store
Apps
1.20k
Games
3
Total Downloads
83.56m
App Store
Download Share
<1%
App Store
App Downloads
83.47m
Game Downloads
91.95k

Use the 42matters SDK Explorer to find all apps that use 100ms.

18th

RongCloudSDK

Check “RongCloudSDK” SDK Insights

Among all apps utilizing communication SDKs, <1% have integrated RongCloudSDK. This accounts for <1% of app downloads within the communication SDK category.

RongCloudSDK offers the most secure and reliable global cloud communication service.

Total Apps
1.01k
App Store
App Share
<1%
App Store
Apps
1.00k
Games
2
Total Downloads
293.70m
App Store
Download Share
<1%
App Store
App Downloads
282.60m
Game Downloads
11.10m

Use the 42matters SDK Explorer to find all apps that use RongCloudSDK.

19th

LiveKit

Check “LiveKit” SDK Insights

Among all apps utilizing communication SDKs, <1% have integrated LiveKit. This accounts for 6.34% of app downloads within the communication SDK category.

Total Apps
875
App Store
App Share
<1%
App Store
Apps
862
Games
13
Total Downloads
6.59b
App Store
Download Share
6.34%
App Store
App Downloads
6.57b
Game Downloads
19.76m

Use the 42matters SDK Explorer to find all apps that use LiveKit.

20th

Sendbird Calls

Check “Sendbird Calls” SDK Insights

Among all apps utilizing communication SDKs, <1% have integrated Sendbird Calls. This accounts for <1% of app downloads within the communication SDK category.

Total Apps
864
App Store
App Share
<1%
App Store
Apps
864
Games
0
Total Downloads
219.17m
App Store
Download Share
<1%
App Store
App Downloads
219.17m
Game Downloads
0

Use the 42matters SDK Explorer to find all apps that use Sendbird Calls.

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Frequently Asked Questions (FAQs)

How does 42matters collect this data?'

We’ve developed a number of machine learning algorithms that scan millions of mobile and connected TV (CTV) applications on a regular basis. In addition, we collect ground truth app performance intelligence and use this data to build statistical models that estimate the performance of apps for which we do not have ground truth data.

What SDK data does 42matters collect?'

We track over 2,300 of the most popular SDKs integrated in iOS and Android apps. We collect a variety of SDK insights (title, platform, ID, category, and developer website); performance metrics (the number of apps that have installed each SDK, installation and removal trends, and app downloads); market share statistics (including market share per app category); and more!

How can I access 42matters’ SDK data?'

The most direct way is to use our SDK Explorer, which is a visual, web-based research platform that enables you to peruse all 2,300+ SDKs that we track. It’s great for market research, lead generation, competitor analysis, etc. However, more technically-inclined folks might prefer our APIs and File Dumps, which enable you to query info for specific apps or SDKs. You can also use our other research platform (the Explorer) to view integrated SDKs by app.

Can I use 42matters’ solutions to generate app publisher leads?'

Absolutely! We actually wrote about this on our blog. We focused on ad network SDKs, but the examples are applicable to most SDK types. To summarize, you can use the Explorer’s advanced filtering capabilities to home in on best-fit app publishers, leverage the SDK Explorer to see which apps use your competitors’ SDKs, and use our APIs and file dumps to build custom lead generation processes.

What data does 42matters provide on mobile apps?'

A ton! We track 17+ million apps across Google Play, the Apple App Store, Amazon Appstore, Tencent Appstore, and Huawei AppGallery. Our solutions provide access to app details (developer insights, metadata, ASO keywords, contact information, etc.); performance metrics (downloads, MAUs, ratings, reviews, top chart rankings, etc.); technical insights (integrated SDKs, permissions, required capabilities, etc.); content details (categories, genres, IAB categories, content ratings, etc.); compliance information (app-ads.txt, privacy policies, store status, etc.) and much, much more!

Can I use 42matters’ solutions to find SDKs for my app?'

Definitely. The SDK Explorer enables you to sort SDKs by category, identify similar SDKs, analyze SDK reliability, and more. In addition, you can use the Explorer to monitor your competitors, including which SDKs they add and remove, their current tech stacks, and SDK changelogs. This means you use our solutions not only to find the right SDK for a particular purpose, but also which SDKs you might need to keep up with your rivals.