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Top 20 Developer Tools SDKs Used in iOS Apps on the Apple App Store
Last update: 22 Oct 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
1.68m
App Store
App Share
99.95%
App Store
Apps
1.50m
Games
179.81k
Total Downloads
512.41b
App Store
Download Share
99.99%
App Store
App Downloads
386.28b
Game Downloads
126.13b

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

Among all apps utilizing developer tools SDKs, 76.89% have integrated Apple AVFoundation. This accounts for 93.86% of app downloads within the developer tools SDK category.

Total Apps
1.29m
App Store
App Share
76.89%
App Store
Apps
1.13m
Games
162.47k
Total Downloads
480.99b
App Store
Download Share
93.86%
App Store
App Downloads
362.10b
Game Downloads
118.89b

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

Among all apps utilizing developer tools SDKs, 71.04% have integrated Apple WebKit. This accounts for 93.14% of app downloads within the developer tools SDK category.

Total Apps
1.20m
App Store
App Share
71.04%
App Store
Apps
1.08m
Games
118.84k
Total Downloads
477.29b
App Store
Download Share
93.14%
App Store
App Downloads
361.91b
Game Downloads
115.39b

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

Among all apps utilizing developer tools SDKs, 51.56% have integrated Google Firebase. This accounts for 65.45% 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
867.72k
App Store
App Share
51.56%
App Store
Apps
784.25k
Games
83.47k
Total Downloads
335.38b
App Store
Download Share
65.45%
App Store
App Downloads
237.64b
Game Downloads
97.74b

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

Among all apps utilizing developer tools SDKs, 40.99% have integrated Firebase Installations. This accounts for 61.26% of app downloads within the developer tools SDK category.

Total Apps
689.82k
App Store
App Share
40.99%
App Store
Apps
639.73k
Games
50.09k
Total Downloads
313.95b
App Store
Download Share
61.26%
App Store
App Downloads
224.43b
Game Downloads
89.52b

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

Among all apps utilizing developer tools SDKs, 32.73% have integrated Apple Core Data. This accounts for 52.24% of app downloads within the developer tools SDK category.

Total Apps
550.80k
App Store
App Share
32.73%
App Store
Apps
522.86k
Games
27.94k
Total Downloads
267.69b
App Store
Download Share
52.24%
App Store
App Downloads
227.42b
Game Downloads
40.26b

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

Among all apps utilizing developer tools SDKs, 28.94% have integrated Apple Swift Framework. This accounts for 15.66% 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
486.97k
App Store
App Share
28.94%
App Store
Apps
435.18k
Games
51.79k
Total Downloads
80.26b
App Store
Download Share
15.66%
App Store
App Downloads
50.86b
Game Downloads
29.40b

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

Among all apps utilizing developer tools SDKs, 28.70% have integrated Promises by Google. This accounts for 22.99% of app downloads within the developer tools SDK category.

Total Apps
483.03k
App Store
App Share
28.70%
App Store
Apps
455.57k
Games
27.45k
Total Downloads
117.80b
App Store
Download Share
22.99%
App Store
App Downloads
83.93b
Game Downloads
33.87b

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

Among all apps utilizing developer tools SDKs, 12.85% have integrated Firebase Remote Config. This accounts for 38.11% of app downloads within the developer tools SDK category.

Total Apps
216.23k
App Store
App Share
12.85%
App Store
Apps
191.73k
Games
24.50k
Total Downloads
195.29b
App Store
Download Share
38.11%
App Store
App Downloads
145.33b
Game Downloads
49.96b

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

Among all apps utilizing developer tools SDKs, 10.33% have integrated Firebase App Check. This accounts for 11.58% of app downloads within the developer tools SDK category.

Total Apps
173.77k
App Store
App Share
10.33%
App Store
Apps
163.86k
Games
9.91k
Total Downloads
59.33b
App Store
Download Share
11.58%
App Store
App Downloads
46.66b
Game Downloads
12.67b

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

Among all apps utilizing developer tools SDKs, 9.57% have integrated Apple Core Bluetooth. This accounts for 16.92% of app downloads within the developer tools SDK category.

Total Apps
160.98k
App Store
App Share
9.57%
App Store
Apps
153.09k
Games
7.89k
Total Downloads
86.70b
App Store
Download Share
16.92%
App Store
App Downloads
82.00b
Game Downloads
4.70b

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

Among all apps utilizing developer tools SDKs, 8.41% have integrated Protobuf. This accounts for 17.34% 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
141.58k
App Store
App Share
8.41%
App Store
Apps
134.72k
Games
6.86k
Total Downloads
88.85b
App Store
Download Share
17.34%
App Store
App Downloads
81.81b
Game Downloads
7.04b

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

Among all apps utilizing developer tools SDKs, 7.32% have integrated Expo. This accounts for 1.18% of app downloads within the developer tools SDK category.

Total Apps
123.20k
App Store
App Share
7.32%
App Store
Apps
121.11k
Games
2.09k
Total Downloads
6.05b
App Store
Download Share
1.18%
App Store
App Downloads
5.94b
Game Downloads
114.29m

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

Among all apps utilizing developer tools SDKs, 7.22% have integrated react-native-device-info. This accounts for 3.33% 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
121.47k
App Store
App Share
7.22%
App Store
Apps
120.81k
Games
659
Total Downloads
17.06b
App Store
Download Share
3.33%
App Store
App Downloads
16.81b
Game Downloads
254.68m

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

Among all apps utilizing developer tools SDKs, 2.57% have integrated Mantle. This accounts for 3.43% 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
43.21k
App Store
App Share
2.57%
App Store
Apps
42.55k
Games
656
Total Downloads
17.58b
App Store
Download Share
3.43%
App Store
App Downloads
17.02b
Game Downloads
562.62m

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

Among all apps utilizing developer tools SDKs, 2.56% have integrated Apple Core ML. This accounts for 31.77% of app downloads within the developer tools SDK category.

Total Apps
43.07k
App Store
App Share
2.56%
App Store
Apps
25.37k
Games
17.70k
Total Downloads
162.79b
App Store
Download Share
31.77%
App Store
App Downloads
104.44b
Game Downloads
58.35b

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

Among all apps utilizing developer tools SDKs, 2.47% have integrated RxSwift. This accounts for 5.44% of app downloads within the developer tools SDK category.

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

Total Apps
41.54k
App Store
App Share
2.47%
App Store
Apps
41.23k
Games
309
Total Downloads
27.87b
App Store
Download Share
5.44%
App Store
App Downloads
27.55b
Game Downloads
314.32m

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

Among all apps utilizing developer tools SDKs, 2.05% have integrated ML Kit by Google. This accounts for 2.26% of app downloads within the developer tools SDK category.

Total Apps
34.54k
App Store
App Share
2.05%
App Store
Apps
34.40k
Games
133
Total Downloads
11.58b
App Store
Download Share
2.26%
App Store
App Downloads
11.57b
Game Downloads
14.38m

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

Among all apps utilizing developer tools SDKs, 1.89% 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
31.85k
App Store
App Share
1.89%
App Store
Apps
31.51k
Games
334
Total Downloads
23.66b
App Store
Download Share
4.62%
App Store
App Downloads
22.28b
Game Downloads
1.38b

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.