Platform
Category
Top 20 Security and Privacy SDKs Used in Android Apps on Google Play
Last update: 19 Oct 2025 CET
Android iconGoogle Play

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, 27.13% have integrated Firebase App Check. This accounts for 16.06% of app downloads within the security and privacy SDK category.

Total Apps
201.81k
Google Play
App Share
27.13%
Google Play
Apps
186.03k
Games
15.78k
Total Downloads
116.40b
Google Play
Download Share
16.06%
Google Play
App Downloads
71.91b
Game Downloads
44.49b

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

Among all apps utilizing security and privacy SDKs, 26.23% have integrated Google reCAPTCHA. This accounts for 16.81% of app downloads within the security and privacy SDK category.

Total Apps
195.13k
Google Play
App Share
26.23%
Google Play
Apps
181.29k
Games
13.83k
Total Downloads
121.82b
Google Play
Download Share
16.81%
Google Play
App Downloads
81.73b
Game Downloads
40.09b

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

Among all apps utilizing security and privacy SDKs, 25.85% have integrated Bouncy Castle Crypto. This accounts for 18.89% 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
192.24k
Google Play
App Share
25.85%
Google Play
Apps
191.02k
Games
1.23k
Total Downloads
136.91b
Google Play
Download Share
18.89%
Google Play
App Downloads
134.63b
Game Downloads
2.28b

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

Among all apps utilizing security and privacy SDKs, 3.56% have integrated SafeDK. This accounts for 15.87% 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
26.50k
Google Play
App Share
3.56%
Google Play
Apps
3.92k
Games
22.57k
Total Downloads
114.99b
Google Play
Download Share
15.87%
Google Play
App Downloads
14.72b
Game Downloads
100.28b

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

Among all apps utilizing security and privacy SDKs, 3.43% have integrated Conceal by Facebook. This accounts for 1.54% of app downloads within the security and privacy SDK category.

Total Apps
25.54k
Google Play
App Share
3.43%
Google Play
Apps
25.46k
Games
71
Total Downloads
11.18b
Google Play
Download Share
1.54%
Google Play
App Downloads
11.09b
Game Downloads
89.18m

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

Among all apps utilizing security and privacy SDKs, 3.26% have integrated Spongy Castle. This accounts for 4.04% 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
24.26k
Google Play
App Share
3.26%
Google Play
Apps
23.23k
Games
1.04k
Total Downloads
29.29b
Google Play
Download Share
4.04%
Google Play
App Downloads
23.91b
Game Downloads
5.38b

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

Among all apps utilizing security and privacy SDKs, 2.87% have integrated SQLCipher for Android. This accounts for 3.46% 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
21.37k
Google Play
App Share
2.87%
Google Play
Apps
20.49k
Games
877
Total Downloads
25.07b
Google Play
Download Share
3.46%
Google Play
App Downloads
17.68b
Game Downloads
7.39b

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

Among all apps utilizing security and privacy SDKs, 1.01% have integrated FingerprintJS. This accounts for <1% of app downloads within the security and privacy SDK category.

Total Apps
7.49k
Google Play
App Share
1.01%
Google Play
Apps
7.41k
Games
81
Total Downloads
5.44b
Google Play
Download Share
<1%
Google Play
App Downloads
5.26b
Game Downloads
185.79m

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
3.84k
Google Play
App Share
<1%
Google Play
Apps
3.84k
Games
1
Total Downloads
2.10b
Google Play
Download Share
<1%
Google Play
App Downloads
2.10b
Game Downloads
1.41m

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 2.25% of app downloads within the security and privacy SDK category.

Total Apps
3.82k
Google Play
App Share
<1%
Google Play
Apps
3.71k
Games
111
Total Downloads
16.29b
Google Play
Download Share
2.25%
Google Play
App Downloads
11.43b
Game Downloads
4.86b

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 4.44% of app downloads within the security and privacy SDK category.

Total Apps
3.14k
Google Play
App Share
<1%
Google Play
Apps
1.32k
Games
1.83k
Total Downloads
32.19b
Google Play
Download Share
4.44%
Google Play
App Downloads
3.19b
Game Downloads
29.00b

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
3.01k
Google Play
App Share
<1%
Google Play
Apps
3.00k
Games
9
Total Downloads
1.62b
Google Play
Download Share
<1%
Google Play
App Downloads
1.62b
Game Downloads
869.26k

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 1.51% of app downloads within the security and privacy SDK category.

Total Apps
2.13k
Google Play
App Share
<1%
Google Play
Apps
1.80k
Games
323
Total Downloads
10.91b
Google Play
Download Share
1.51%
Google Play
App Downloads
9.37b
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
1.86k
Google Play
App Share
<1%
Google Play
Apps
1.86k
Games
3
Total Downloads
2.67b
Google Play
Download Share
<1%
Google Play
App Downloads
2.67b
Game Downloads
1.64m

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
1.82k
Google Play
App Share
<1%
Google Play
Apps
1.80k
Games
26
Total Downloads
789.85m
Google Play
Download Share
<1%
Google Play
App Downloads
774.88m
Game Downloads
14.97m

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 1.08% 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
1.79k
Google Play
App Share
<1%
Google Play
Apps
1.58k
Games
211
Total Downloads
7.82b
Google Play
Download Share
1.08%
Google Play
App Downloads
2.85b
Game Downloads
4.98b

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
984
Google Play
App Share
<1%
Google Play
Apps
984
Games
0
Total Downloads
69.20m
Google Play
Download Share
<1%
Google Play
App Downloads
69.20m
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
924
Google Play
App Share
<1%
Google Play
Apps
890
Games
34
Total Downloads
445.26m
Google Play
Download Share
<1%
Google Play
App Downloads
412.31m
Game Downloads
32.95m

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
819
Google Play
App Share
<1%
Google Play
Apps
816
Games
3
Total Downloads
3.02b
Google Play
Download Share
<1%
Google Play
App Downloads
3.01b
Game Downloads
5.53m

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

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.