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Top 20 Security and Privacy SDKs Used in Android Apps on Google Play
Last update: 18 Dec 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, 27.69% have integrated Firebase App Check. This accounts for 15.92% of app downloads within the security and privacy SDK category.

Total Apps
213.35k
Google Play
App Share
27.69%
Google Play
Apps
196.44k
Games
16.91k
Total Downloads
121.56b
Google Play
Download Share
15.92%
Google Play
App Downloads
76.40b
Game Downloads
45.16b

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

Among all apps utilizing security and privacy SDKs, 27.67% have integrated Google reCAPTCHA. This accounts for 16.46% of app downloads within the security and privacy SDK category.

Total Apps
213.24k
Google Play
App Share
27.67%
Google Play
Apps
198.32k
Games
14.92k
Total Downloads
125.65b
Google Play
Download Share
16.46%
Google Play
App Downloads
85.21b
Game Downloads
40.44b

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

Among all apps utilizing security and privacy SDKs, 26.01% have integrated Bouncy Castle Crypto. This accounts for 23.07% 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
200.45k
Google Play
App Share
26.01%
Google Play
Apps
199.15k
Games
1.29k
Total Downloads
176.14b
Google Play
Download Share
23.07%
Google Play
App Downloads
173.93b
Game Downloads
2.22b

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

Among all apps utilizing security and privacy SDKs, 3.53% have integrated SafeDK. This accounts for 15.66% 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
27.19k
Google Play
App Share
3.53%
Google Play
Apps
3.87k
Games
23.32k
Total Downloads
119.57b
Google Play
Download Share
15.66%
Google Play
App Downloads
15.10b
Game Downloads
104.47b

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

Among all apps utilizing security and privacy SDKs, 3.21% have integrated Spongy Castle. This accounts for 3.94% 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
24.73k
Google Play
App Share
3.21%
Google Play
Apps
23.56k
Games
1.17k
Total Downloads
30.11b
Google Play
Download Share
3.94%
Google Play
App Downloads
24.48b
Game Downloads
5.63b

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

Among all apps utilizing security and privacy SDKs, 3.05% have integrated Conceal by Facebook. This accounts for 1.28% of app downloads within the security and privacy SDK category.

Total Apps
23.52k
Google Play
App Share
3.05%
Google Play
Apps
23.45k
Games
68
Total Downloads
9.75b
Google Play
Download Share
1.28%
Google Play
App Downloads
9.66b
Game Downloads
89.12m

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

Among all apps utilizing security and privacy SDKs, 2.30% have integrated SQLCipher for Android. This accounts for 3.01% 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
17.76k
Google Play
App Share
2.30%
Google Play
Apps
16.98k
Games
780
Total Downloads
22.95b
Google Play
Download Share
3.01%
Google Play
App Downloads
15.88b
Game Downloads
7.07b

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

Among all apps utilizing security and privacy SDKs, 1.16% have integrated FingerprintJS. This accounts for <1% of app downloads within the security and privacy SDK category.

Total Apps
8.93k
Google Play
App Share
1.16%
Google Play
Apps
8.85k
Games
83
Total Downloads
5.62b
Google Play
Download Share
<1%
Google Play
App Downloads
5.37b
Game Downloads
243.08m

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
3.88k
Google Play
App Share
<1%
Google Play
Apps
3.88k
Games
1
Total Downloads
2.14b
Google Play
Download Share
<1%
Google Play
App Downloads
2.14b
Game Downloads
1.55m

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 2.14% of app downloads within the security and privacy SDK category.

Total Apps
3.87k
Google Play
App Share
<1%
Google Play
Apps
3.77k
Games
103
Total Downloads
16.31b
Google Play
Download Share
2.14%
Google Play
App Downloads
11.47b
Game Downloads
4.84b

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

Total Apps
3.21k
Google Play
App Share
<1%
Google Play
Apps
3.20k
Games
9
Total Downloads
1.42b
Google Play
Download Share
<1%
Google Play
App Downloads
1.42b
Game Downloads
912.19k

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

Among all apps utilizing security and privacy SDKs, <1% have integrated Usercentrics. This accounts for 4.21% of app downloads within the security and privacy SDK category.

Total Apps
3.19k
Google Play
App Share
<1%
Google Play
Apps
1.35k
Games
1.84k
Total Downloads
32.17b
Google Play
Download Share
4.21%
Google Play
App Downloads
3.35b
Game Downloads
28.82b

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 1.44% of app downloads within the security and privacy SDK category.

Total Apps
2.08k
Google Play
App Share
<1%
Google Play
Apps
1.78k
Games
302
Total Downloads
11.00b
Google Play
Download Share
1.44%
Google Play
App Downloads
9.45b
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 Didomi. This accounts for 1.02% 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
1.93k
Google Play
App Share
<1%
Google Play
Apps
1.73k
Games
203
Total Downloads
7.76b
Google Play
Download Share
1.02%
Google Play
App Downloads
3.26b
Game Downloads
4.51b

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

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
1.81k
Google Play
App Share
<1%
Google Play
Apps
1.79k
Games
25
Total Downloads
795.44m
Google Play
Download Share
<1%
Google Play
App Downloads
780.43m
Game Downloads
15.01m

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

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
1.78k
Google Play
App Share
<1%
Google Play
Apps
1.77k
Games
4
Total Downloads
2.61b
Google Play
Download Share
<1%
Google Play
App Downloads
2.61b
Game Downloads
1.67m

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

Total Apps
1.00k
Google Play
App Share
<1%
Google Play
Apps
1.00k
Games
0
Total Downloads
69.99m
Google Play
Download Share
<1%
Google Play
App Downloads
69.99m
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
914
Google Play
App Share
<1%
Google Play
Apps
877
Games
37
Total Downloads
434.62m
Google Play
Download Share
<1%
Google Play
App Downloads
401.56m
Game Downloads
33.06m

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

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
844
Google Play
App Share
<1%
Google Play
Apps
839
Games
5
Total Downloads
200.16m
Google Play
Download Share
<1%
Google Play
App Downloads
200.01m
Game Downloads
146.28k

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

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.