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Top 20 Developer Tools SDKs Used in iOS Apps on the Apple App Store
Last update: 18 Nov 2025 CET
App Store

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

We at 42matters have identified the 20 most popular Developer Tools SDKs leveraged by iOS apps available on the iOS app market.

Developer Tool SDKs help developers build sophisticated mobile apps. Technology vendors and platform providers develop these SDKs — which include programming libraries, APIs, sample code, documentation, and other tools — for third-party app developers that want to build mobile apps that leverage the features and functionalities of their technologies or platforms.

This list is based on our analysis of the millions of mobile applications – and the 2,300+ SDKs they use – that constitute the vast inventory of the Apple App Store. The accompanying data provides readers with a glimpse into the rich mobile application insights generated by the 42matters technology. This data is also available via our APIs, file dumps, Explorer, and SDK Explorer.

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

Among all apps utilizing developer tools SDKs, 99.95% have integrated Apple Core Foundation. This accounts for 99.99% of app downloads within the developer tools SDK category.

Total Apps
1.71m
App Store
App Share
99.95%
App Store
Apps
1.53m
Games
180.18k
Total Downloads
516.96b
App Store
Download Share
99.99%
App Store
App Downloads
390.21b
Game Downloads
126.74b

Use the 42matters SDK Explorer to find all apps that use Apple Core Foundation.

Among all apps utilizing developer tools SDKs, 76.70% have integrated Apple AVFoundation. This accounts for 94.09% of app downloads within the developer tools SDK category.

Total Apps
1.31m
App Store
App Share
76.70%
App Store
Apps
1.15m
Games
163.14k
Total Downloads
486.42b
App Store
Download Share
94.09%
App Store
App Downloads
365.66b
Game Downloads
120.76b

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

Among all apps utilizing developer tools SDKs, 71.10% have integrated Apple WebKit. This accounts for 93.40% of app downloads within the developer tools SDK category.

Total Apps
1.21m
App Store
App Share
71.10%
App Store
Apps
1.09m
Games
120.29k
Total Downloads
482.88b
App Store
Download Share
93.40%
App Store
App Downloads
365.68b
Game Downloads
117.20b

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

Among all apps utilizing developer tools SDKs, 51.59% have integrated Google Firebase. This accounts for 65.38% of app downloads within the developer tools SDK category.

Firebase is Google's mobile platform SDK that helps you quickly develop high-quality apps and grow your business.

Total Apps
880.37k
App Store
App Share
51.59%
App Store
Apps
796.82k
Games
83.55k
Total Downloads
338.02b
App Store
Download Share
65.38%
App Store
App Downloads
239.36b
Game Downloads
98.66b

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

Among all apps utilizing developer tools SDKs, 41.23% have integrated Firebase Installations. This accounts for 61.28% of app downloads within the developer tools SDK category.

Total Apps
703.59k
App Store
App Share
41.23%
App Store
Apps
652.80k
Games
50.79k
Total Downloads
316.81b
App Store
Download Share
61.28%
App Store
App Downloads
226.29b
Game Downloads
90.52b

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

Among all apps utilizing developer tools SDKs, 32.55% have integrated Apple Core Data. This accounts for 51.96% of app downloads within the developer tools SDK category.

Total Apps
555.38k
App Store
App Share
32.55%
App Store
Apps
527.41k
Games
27.98k
Total Downloads
268.62b
App Store
Download Share
51.96%
App Store
App Downloads
228.70b
Game Downloads
39.92b

Use the 42matters SDK Explorer to find all apps that use Apple Core Data.

Among all apps utilizing developer tools SDKs, 28.65% have integrated Promises by Google. This accounts for 22.78% of app downloads within the developer tools SDK category.

Total Apps
488.90k
App Store
App Share
28.65%
App Store
Apps
461.51k
Games
27.40k
Total Downloads
117.79b
App Store
Download Share
22.78%
App Store
App Downloads
83.61b
Game Downloads
34.18b

Use the 42matters SDK Explorer to find all apps that use Promises by Google.

Among all apps utilizing developer tools SDKs, 27.83% have integrated Apple Swift Framework. This accounts for 14.74% of app downloads within the developer tools SDK category.

Apple Swift Framework is a powerful and intuitive programming language for macOS, iOS, watchOS, tvOS and beyond.

Total Apps
474.96k
App Store
App Share
27.83%
App Store
Apps
424.15k
Games
50.82k
Total Downloads
76.20b
App Store
Download Share
14.74%
App Store
App Downloads
48.58b
Game Downloads
27.61b

Use the 42matters SDK Explorer to find all apps that use Apple Swift Framework.

Among all apps utilizing developer tools SDKs, 13.13% have integrated Firebase Remote Config. This accounts for 38.11% of app downloads within the developer tools SDK category.

Total Apps
224.04k
App Store
App Share
13.13%
App Store
Apps
199.06k
Games
24.98k
Total Downloads
197.02b
App Store
Download Share
38.11%
App Store
App Downloads
147.02b
Game Downloads
50.00b

Use the 42matters SDK Explorer to find all apps that use Firebase Remote Config.

Among all apps utilizing developer tools SDKs, 10.70% have integrated Firebase App Check. This accounts for 11.73% of app downloads within the developer tools SDK category.

Total Apps
182.61k
App Store
App Share
10.70%
App Store
Apps
172.36k
Games
10.25k
Total Downloads
60.63b
App Store
Download Share
11.73%
App Store
App Downloads
47.50b
Game Downloads
13.13b

Use the 42matters SDK Explorer to find all apps that use Firebase App Check.

Among all apps utilizing developer tools SDKs, 9.48% have integrated Apple Core Bluetooth. This accounts for 16.90% of app downloads within the developer tools SDK category.

Total Apps
161.83k
App Store
App Share
9.48%
App Store
Apps
154.06k
Games
7.78k
Total Downloads
87.37b
App Store
Download Share
16.90%
App Store
App Downloads
82.78b
Game Downloads
4.59b

Use the 42matters SDK Explorer to find all apps that use Apple Core Bluetooth.

Among all apps utilizing developer tools SDKs, 8.07% have integrated Protobuf. This accounts for 17.38% of app downloads within the developer tools SDK category.

Protocol Buffers (a.k.a., protobuf) are Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data.

Total Apps
137.70k
App Store
App Share
8.07%
App Store
Apps
130.92k
Games
6.77k
Total Downloads
89.88b
App Store
Download Share
17.38%
App Store
App Downloads
82.50b
Game Downloads
7.37b

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

Among all apps utilizing developer tools SDKs, 7.57% have integrated Expo. This accounts for 1.24% of app downloads within the developer tools SDK category.

Total Apps
129.26k
App Store
App Share
7.57%
App Store
Apps
127.03k
Games
2.23k
Total Downloads
6.43b
App Store
Download Share
1.24%
App Store
App Downloads
6.32b
Game Downloads
115.20m

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

Among all apps utilizing developer tools SDKs, 7.40% have integrated react-native-device-info. This accounts for 3.38% of app downloads within the developer tools SDK category.

The react-native-device-info SDK offers device information for React Native for iOS and Android.

Total Apps
126.31k
App Store
App Share
7.40%
App Store
Apps
125.62k
Games
685
Total Downloads
17.47b
App Store
Download Share
3.38%
App Store
App Downloads
17.26b
Game Downloads
207.18m

Use the 42matters SDK Explorer to find all apps that use react-native-device-info.

Among all apps utilizing developer tools SDKs, 2.61% have integrated Apple Core ML. This accounts for 32.26% of app downloads within the developer tools SDK category.

Total Apps
44.62k
App Store
App Share
2.61%
App Store
Apps
26.04k
Games
18.58k
Total Downloads
166.80b
App Store
Download Share
32.26%
App Store
App Downloads
105.88b
Game Downloads
60.92b

Use the 42matters SDK Explorer to find all apps that use Apple Core ML.

Among all apps utilizing developer tools SDKs, 2.60% have integrated Mantle. This accounts for 3.45% of app downloads within the developer tools SDK category.

Mantle is a Software Development Kit (SDK) that makes it easy to write simple model layers for your Cocoa or Cocoa Touch mobile applications or games.

Total Apps
44.30k
App Store
App Share
2.60%
App Store
Apps
43.64k
Games
658
Total Downloads
17.85b
App Store
Download Share
3.45%
App Store
App Downloads
16.63b
Game Downloads
1.22b

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

Among all apps utilizing developer tools SDKs, 2.41% have integrated RxSwift. This accounts for 5.46% of app downloads within the developer tools SDK category.

The RxSwift SDK offers a framework for interacting with the Swift programming language.

Total Apps
41.13k
App Store
App Share
2.41%
App Store
Apps
40.83k
Games
300
Total Downloads
28.23b
App Store
Download Share
5.46%
App Store
App Downloads
27.92b
Game Downloads
315.14m

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

Among all apps utilizing developer tools SDKs, 2.11% have integrated ML Kit by Google. This accounts for 2.25% of app downloads within the developer tools SDK category.

Total Apps
36.00k
App Store
App Share
2.11%
App Store
Apps
35.86k
Games
139
Total Downloads
11.62b
App Store
Download Share
2.25%
App Store
App Downloads
11.60b
Game Downloads
14.44m

Use the 42matters SDK Explorer to find all apps that use ML Kit by Google.

Among all apps utilizing developer tools SDKs, 1.87% have integrated CocoaLumberjack. This accounts for 4.62% of app downloads within the developer tools SDK category.

CocoaLumberjack is a fast and simple, yet powerful and flexible, logging framework SDK for Mac and iOS.

Total Apps
31.86k
App Store
App Share
1.87%
App Store
Apps
31.53k
Games
336
Total Downloads
23.87b
App Store
Download Share
4.62%
App Store
App Downloads
22.47b
Game Downloads
1.40b

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

Browse iOS and Android SDKs With the SDK Explorer

Browse background top image
  • SDK IntelligenceSDK Intelligence

    See how many apps integrate specific SDKs, how many times these SDKs have been downloaded, developer details, similar SDKs, and more.

  • New Installations and Removals HistoryNew Installations and Removals History

    Analyze installation and removal trends for SDKs. Discover which apps have removed or integrated specific SDKs in a given timeframe.

  • Market Share per Google Play and Apple App Store CategoryMarket Share per Google Play and Apple App Store Category

    See which app categories or genres are most likely to use specific SDKs. Detect SDK market share per category.

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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.