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Top 20 Security and Privacy SDKs Used in Android Apps on Google Play
Last update: 7 Oct 2025 CET
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Top 20 Security and Privacy SDKs Used in Android Apps on Google Play

We at 42matters have identified the 20 most popular Security and Privacy SDKs leveraged by Android apps available on the Android 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 Google Play 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, 27.01% have integrated Firebase App Check. This accounts for 15.82% of app downloads within the security and privacy SDK category.

Total Apps
200.28k
Google Play
App Share
27.01%
Google Play
Apps
184.56k
Games
15.72k
Total Downloads
113.74b
Google Play
Download Share
15.82%
Google Play
App Downloads
69.82b
Game Downloads
43.92b

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

Among all apps utilizing security and privacy SDKs, 26.10% have integrated Google reCAPTCHA. This accounts for 16.83% of app downloads within the security and privacy SDK category.

Total Apps
193.57k
Google Play
App Share
26.10%
Google Play
Apps
179.83k
Games
13.74k
Total Downloads
121.00b
Google Play
Download Share
16.83%
Google Play
App Downloads
81.28b
Game Downloads
39.71b

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

Among all apps utilizing security and privacy SDKs, 25.69% have integrated Bouncy Castle Crypto. This accounts for 18.90% of app downloads within the security and privacy SDK category.

The Bouncy Castle Crypto package SDK is a Java implementation of cryptographic algorithms.

Total Apps
190.50k
Google Play
App Share
25.69%
Google Play
Apps
189.27k
Games
1.23k
Total Downloads
135.90b
Google Play
Download Share
18.90%
Google Play
App Downloads
133.55b
Game Downloads
2.35b

Use the 42matters SDK Explorer to find all apps that use Bouncy Castle Crypto.

Among all apps utilizing security and privacy SDKs, 3.61% have integrated SafeDK. This accounts for 15.90% of app downloads within the security and privacy SDK category.

SafeDK is an SDK management and marketplace for enterprises and mobile developers. It offers an infrastructure solution, which improves mobile apps' security, stability, and QoS by monitoring and controlling 3rd party tools integrated in the apps.

Total Apps
26.78k
Google Play
App Share
3.61%
Google Play
Apps
4.02k
Games
22.76k
Total Downloads
114.33b
Google Play
Download Share
15.90%
Google Play
App Downloads
14.66b
Game Downloads
99.67b

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

Among all apps utilizing security and privacy SDKs, 3.47% have integrated Conceal by Facebook. This accounts for 1.56% of app downloads within the security and privacy SDK category.

Total Apps
25.76k
Google Play
App Share
3.47%
Google Play
Apps
25.68k
Games
76
Total Downloads
11.23b
Google Play
Download Share
1.56%
Google Play
App Downloads
11.14b
Game Downloads
89.74m

Use the 42matters SDK Explorer to find all apps that use Conceal by Facebook.

Among all apps utilizing security and privacy SDKs, 3.27% have integrated Spongy Castle. This accounts for 4.05% of app downloads within the security and privacy SDK category.

Spongy Castle is an SDK that repackages Bouncy Castle for Android (which ships a crippled version of BC).

Total Apps
24.27k
Google Play
App Share
3.27%
Google Play
Apps
23.23k
Games
1.04k
Total Downloads
29.14b
Google Play
Download Share
4.05%
Google Play
App Downloads
23.81b
Game Downloads
5.33b

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

Among all apps utilizing security and privacy SDKs, 2.96% have integrated SQLCipher for Android. This accounts for 3.51% of app downloads within the security and privacy SDK category.

SQLCipher for Android is an open source extension SDK for SQLite that provides transparent 256-bit AES encryption of database files.

Total Apps
21.92k
Google Play
App Share
2.96%
Google Play
Apps
21.04k
Games
881
Total Downloads
25.24b
Google Play
Download Share
3.51%
Google Play
App Downloads
17.87b
Game Downloads
7.37b

Use the 42matters SDK Explorer to find all apps that use SQLCipher for Android.

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

Total Apps
6.46k
Google Play
App Share
<1%
Google Play
Apps
6.38k
Games
81
Total Downloads
5.33b
Google Play
Download Share
<1%
Google Play
App Downloads
5.14b
Game Downloads
185.44m

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

Among all apps utilizing security and privacy SDKs, <1% have integrated Sift. This accounts for <1% 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
3.83k
Google Play
App Share
<1%
Google Play
Apps
3.83k
Games
1
Total Downloads
2.09b
Google Play
Download Share
<1%
Google Play
App Downloads
2.09b
Game Downloads
1.38m

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

Among all apps utilizing security and privacy SDKs, <1% have integrated OneTrust Publishers Headless Consent. This accounts for 2.26% of app downloads within the security and privacy SDK category.

Total Apps
3.79k
Google Play
App Share
<1%
Google Play
Apps
3.68k
Games
108
Total Downloads
16.23b
Google Play
Download Share
2.26%
Google Play
App Downloads
11.40b
Game Downloads
4.83b

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

Among all apps utilizing security and privacy SDKs, <1% have integrated Usercentrics. This accounts for 4.46% of app downloads within the security and privacy SDK category.

Total Apps
3.14k
Google Play
App Share
<1%
Google Play
Apps
1.30k
Games
1.84k
Total Downloads
32.10b
Google Play
Download Share
4.46%
Google Play
App Downloads
3.17b
Game Downloads
28.92b

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

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
2.99k
Google Play
App Share
<1%
Google Play
Apps
2.98k
Games
9
Total Downloads
1.62b
Google Play
Download Share
<1%
Google Play
App Downloads
1.61b
Game Downloads
852.68k

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

Among all apps utilizing security and privacy SDKs, <1% have integrated ThreatMetrix by LexisNexis. This accounts for 1.52% of app downloads within the security and privacy SDK category.

Total Apps
2.14k
Google Play
App Share
<1%
Google Play
Apps
1.81k
Games
324
Total Downloads
10.89b
Google Play
Download Share
1.52%
Google Play
App Downloads
9.35b
Game Downloads
1.55b

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 FraudForce by iovation. This accounts for <1% of app downloads within the security and privacy SDK category.

Total Apps
1.88k
Google Play
App Share
<1%
Google Play
Apps
1.87k
Games
3
Total Downloads
2.68b
Google Play
Download Share
<1%
Google Play
App Downloads
2.68b
Game Downloads
1.63m

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 AESCrypt. This accounts for <1% 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
1.86k
Google Play
App Share
<1%
Google Play
Apps
1.83k
Games
26
Total Downloads
787.26m
Google Play
Download Share
<1%
Google Play
App Downloads
772.30m
Game Downloads
14.96m

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

Among all apps utilizing security and privacy SDKs, <1% have integrated Didomi. This accounts for 1.10% 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
1.76k
Google Play
App Share
<1%
Google Play
Apps
1.54k
Games
220
Total Downloads
7.94b
Google Play
Download Share
1.10%
Google Play
App Downloads
2.79b
Game Downloads
5.14b

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

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

Total Apps
976
Google Play
App Share
<1%
Google Play
Apps
976
Games
0
Total Downloads
68.76m
Google Play
Download Share
<1%
Google Play
App Downloads
68.76m
Game Downloads
0

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

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

GDPR dialog offers a simple, reusable DialogFragment via SDK.

Total Apps
934
Google Play
App Share
<1%
Google Play
Apps
898
Games
36
Total Downloads
445.34m
Google Play
Download Share
<1%
Google Play
App Downloads
412.30m
Game Downloads
33.04m

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

Among all apps utilizing security and privacy SDKs, <1% have integrated TrustKit. This accounts for <1% 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
815
Google Play
App Share
<1%
Google Play
Apps
813
Games
2
Total Downloads
3.00b
Google Play
Download Share
<1%
Google Play
App Downloads
2.99b
Game Downloads
5.48m

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

Browse iOS and Android SDKs With the SDK Explorer

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  • 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.