Platform
Category
Top 20 Security and Privacy SDKs Used in iOS Apps on the Apple App Store
Last update: 17 May 2026 CET
App Store

Top 20 Security and Privacy SDKs Used in iOS Apps on the Apple App Store

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

Security and Privacy SDKs are developer tools that provide various functionalities for developers that need to add secure data transmission, storage, or processing to their mobile apps, as well as privacy compliance. Common features include authentication, authorization, encryption, decryption, data access control, tokenization, certificate management, secure communication, etc.

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 Security and Privacy 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 security and privacy SDKs, 77.17% have integrated Firebase App Check. This accounts for 39.58% of app downloads within the security and privacy SDK category.

Total Apps
233.69k
App Store
App Share
77.17%
App Store
Apps
220.65k
Games
13.05k
Total Downloads
68.84b
App Store
Download Share
39.58%
App Store
App Downloads
53.97b
Game Downloads
14.86b

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

Among all apps utilizing security and privacy SDKs, 35.50% have integrated Google reCAPTCHA. This accounts for 17.49% of app downloads within the security and privacy SDK category.

Total Apps
107.50k
App Store
App Share
35.50%
App Store
Apps
103.61k
Games
3.89k
Total Downloads
30.43b
App Store
Download Share
17.49%
App Store
App Downloads
23.08b
Game Downloads
7.34b

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

Among all apps utilizing security and privacy SDKs, 10.25% have integrated CryptoSwift. This accounts for 11.36% of app downloads within the security and privacy SDK category.

The CryptoSwift SDK is a growing collection of standard and secure cryptographic algorithms implemented in Swift.

Total Apps
31.04k
App Store
App Share
10.25%
App Store
Apps
30.69k
Games
350
Total Downloads
19.75b
App Store
Download Share
11.36%
App Store
App Downloads
17.86b
Game Downloads
1.89b

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

Among all apps utilizing security and privacy SDKs, 2.44% have integrated TrustKit. This accounts for 5.82% of app downloads within the security and privacy SDK category.

TrustKit is an SDK that offers an open source framework that makes it easy to deploy SSL public key pinning and reporting in any iOS 10+, macOS 10.10+, tvOS 10+, or watchOS 3+ App. It supports both Swift and Objective-C Apps.

Total Apps
7.39k
App Store
App Share
2.44%
App Store
Apps
7.33k
Games
60
Total Downloads
10.12b
App Store
Download Share
5.82%
App Store
App Downloads
9.14b
Game Downloads
982.45m

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

Among all apps utilizing security and privacy SDKs, 1.70% have integrated AESCrypt. This accounts for 2.57% of app downloads within the security and privacy SDK category.

AESCrypt is a file encryption SDK, available on several operating systems, that facilitates easy and secure file encryption based on the Advanced Encryption Standard (AES).

Total Apps
5.16k
App Store
App Share
1.70%
App Store
Apps
4.93k
Games
231
Total Downloads
4.48b
App Store
Download Share
2.57%
App Store
App Downloads
3.63b
Game Downloads
851.59m

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

Among all apps utilizing security and privacy SDKs, 1.19% have integrated OneTrust Publishers Headless Consent. This accounts for 10.94% of app downloads within the security and privacy SDK category.

Total Apps
3.59k
App Store
App Share
1.19%
App Store
Apps
3.47k
Games
118
Total Downloads
19.03b
App Store
Download Share
10.94%
App Store
App Downloads
17.64b
Game Downloads
1.39b

Use the 42matters SDK Explorer to find all apps that use OneTrust Publishers Headless Consent.

Among all apps utilizing security and privacy SDKs, 1.01% have integrated FingerprintJS. This accounts for 2.82% of app downloads within the security and privacy SDK category.

Total Apps
3.07k
App Store
App Share
1.01%
App Store
Apps
2.99k
Games
86
Total Downloads
4.91b
App Store
Download Share
2.82%
App Store
App Downloads
4.44b
Game Downloads
465.10m

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

Among all apps utilizing security and privacy SDKs, <1% have integrated Talsec. This accounts for <1% of app downloads within the security and privacy SDK category.

Total Apps
2.95k
App Store
App Share
<1%
App Store
Apps
2.93k
Games
26
Total Downloads
616.60m
App Store
Download Share
<1%
App Store
App Downloads
611.80m
Game Downloads
4.80m

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

Among all apps utilizing security and privacy SDKs, <1% have integrated Sift. This accounts for 1.42% of app downloads within the security and privacy SDK category.

Sift is a leader in digital trust and safety, empowering organizations of all sizes to unlock new revenue without risk. Sift helps businesses make accurate, real-time decisions that both improve user experience and increase revenue.

Total Apps
2.56k
App Store
App Share
<1%
App Store
Apps
2.55k
Games
13
Total Downloads
2.47b
App Store
Download Share
1.42%
App Store
App Downloads
2.41b
Game Downloads
60.37m

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

Among all apps utilizing security and privacy SDKs, <1% have integrated FraudForce by iovation. This accounts for 2.93% of app downloads within the security and privacy SDK category.

Total Apps
2.40k
App Store
App Share
<1%
App Store
Apps
2.37k
Games
25
Total Downloads
5.10b
App Store
Download Share
2.93%
App Store
App Downloads
5.09b
Game Downloads
1.96m

Use the 42matters SDK Explorer to find all apps that use FraudForce by iovation.

Among all apps utilizing security and privacy SDKs, <1% have integrated Didomi. This accounts for 3.48% of app downloads within the security and privacy SDK category.

The Didomi SDK provides comprehensive solutions to collect, store, and leverage user consents and preferences for your business.

Total Apps
2.20k
App Store
App Share
<1%
App Store
Apps
2.04k
Games
161
Total Downloads
6.06b
App Store
Download Share
3.48%
App Store
App Downloads
3.93b
Game Downloads
2.13b

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

Among all apps utilizing security and privacy SDKs, <1% have integrated Usercentrics. This accounts for 8.66% of app downloads within the security and privacy SDK category.

Total Apps
2.15k
App Store
App Share
<1%
App Store
Apps
1.32k
Games
833
Total Downloads
15.06b
App Store
Download Share
8.66%
App Store
App Downloads
3.58b
Game Downloads
11.48b

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

Among all apps utilizing security and privacy SDKs, <1% have integrated ThreatMetrix by LexisNexis. This accounts for 7.50% of app downloads within the security and privacy SDK category.

Total Apps
2.02k
App Store
App Share
<1%
App Store
Apps
1.66k
Games
358
Total Downloads
13.04b
App Store
Download Share
7.50%
App Store
App Downloads
12.87b
Game Downloads
173.15m

Use the 42matters SDK Explorer to find all apps that use ThreatMetrix by LexisNexis.

Among all apps utilizing security and privacy SDKs, <1% have integrated FreeRASP by Talsec. This accounts for <1% of app downloads within the security and privacy SDK category.

Total Apps
1.88k
App Store
App Share
<1%
App Store
Apps
1.87k
Games
9
Total Downloads
170.44m
App Store
Download Share
<1%
App Store
App Downloads
170.10m
Game Downloads
337.54k

Use the 42matters SDK Explorer to find all apps that use FreeRASP by Talsec.

Among all apps utilizing security and privacy SDKs, <1% have integrated RNCryptor. This accounts for 1.49% of app downloads within the security and privacy SDK category.

The RNCryptor SDK is just one swift file and one bridging header, allowing you to skip all the complexity of managing frameworks.

Total Apps
1.86k
App Store
App Share
<1%
App Store
Apps
1.82k
Games
38
Total Downloads
2.59b
App Store
Download Share
1.49%
App Store
App Downloads
2.57b
Game Downloads
17.21m

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

Among all apps utilizing security and privacy SDKs, <1% have integrated Microsoft Intune. This accounts for 4.73% of app downloads within the security and privacy SDK category.

Total Apps
1.22k
App Store
App Share
<1%
App Store
Apps
1.22k
Games
0
Total Downloads
8.23b
App Store
Download Share
4.73%
App Store
App Downloads
8.23b
Game Downloads
0

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

Among all apps utilizing security and privacy SDKs, <1% have integrated SSKeychain. This accounts for <1% of app downloads within the security and privacy SDK category.

SSKeychain is a simple wrapper SDK for accessing accounts, getting passwords, setting passwords, and deleting passwords using the system Keychain on Mac OS X and iOS. SSKeychain works in ARC and non-ARC projects.

Total Apps
1.07k
App Store
App Share
<1%
App Store
Apps
1.05k
Games
11
Total Downloads
513.09m
App Store
Download Share
<1%
App Store
App Downloads
506.22m
Game Downloads
6.87m

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

Among all apps utilizing security and privacy SDKs, <1% have integrated 1Password Extension. This accounts for <1% of app downloads within the security and privacy SDK category.

Total Apps
691
App Store
App Share
<1%
App Store
Apps
688
Games
3
Total Downloads
641.19m
App Store
Download Share
<1%
App Store
App Downloads
641.10m
Game Downloads
85.02k

Use the 42matters SDK Explorer to find all apps that use 1Password Extension.

Among all apps utilizing security and privacy SDKs, <1% have integrated Riskified. This accounts for 2.58% of app downloads within the security and privacy SDK category.

Total Apps
659
App Store
App Share
<1%
App Store
Apps
632
Games
27
Total Downloads
4.48b
App Store
Download Share
2.58%
App Store
App Downloads
4.26b
Game Downloads
216.98m

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

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.

Browse background bottom imageBrowse right section image

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.