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Top 20 User Authentication SDKs Used in Android Apps on Google Play
Last update: 26 Mar 2025 CET
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Top 20 User Authentication SDKs Used in Android Apps on Google Play

We at 42matters have identified the 20 most popular User Authentication SDKs leveraged by Android apps available on the Android app market.

User Authentication SDKs enable developers to add user authentication capabilities, such as login, registration, and access control, to their mobile apps. They commonly offer user management, identity verification, password reset, and other related capabilities.

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 User Authentication 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 user authentication SDKs, 75.20% have integrated Firebase Authentication. This accounts for 56.01% of app downloads within the user authentication SDK category.

Total Apps
339.17k
Google Play
App Share
75.20%
Google Play
Apps
319.26k
Games
19.91k
Total Downloads
228.32b
Google Play
Download Share
56.01%
Google Play
App Downloads
162.14b
Game Downloads
66.17b

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

Among all apps utilizing user authentication SDKs, 37.72% have integrated Google reCAPTCHA. This accounts for 25.55% of app downloads within the user authentication SDK category.

Total Apps
170.10k
Google Play
App Share
37.72%
Google Play
Apps
158.75k
Games
11.36k
Total Downloads
104.14b
Google Play
Download Share
25.55%
Google Play
App Downloads
69.01b
Game Downloads
35.13b

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

Among all apps utilizing user authentication SDKs, 9.52% have integrated Truecaller. This accounts for 3.71% of app downloads within the user authentication SDK category.

Total Apps
42.94k
Google Play
App Share
9.52%
Google Play
Apps
42.89k
Games
43
Total Downloads
15.12b
Google Play
Download Share
3.71%
Google Play
App Downloads
14.75b
Game Downloads
366.85m

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

Among all apps utilizing user authentication SDKs, 9.11% have integrated OTPless. This accounts for <1% of app downloads within the user authentication SDK category.

Total Apps
41.11k
Google Play
App Share
9.11%
Google Play
Apps
41.08k
Games
22
Total Downloads
1.69b
Google Play
Download Share
<1%
Google Play
App Downloads
1.64b
Game Downloads
43.57m

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

Among all apps utilizing user authentication SDKs, 7.24% have integrated Amazon AWS Cognito Federated Identities. This accounts for 8.28% of app downloads within the user authentication SDK category.

Total Apps
32.66k
Google Play
App Share
7.24%
Google Play
Apps
32.27k
Games
393
Total Downloads
33.75b
Google Play
Download Share
8.28%
Google Play
App Downloads
25.08b
Game Downloads
8.67b

Use the 42matters SDK Explorer to find all apps that use Amazon AWS Cognito Federated Identities.

Among all apps utilizing user authentication SDKs, 6.62% have integrated AppAuth by OpenID. This accounts for 16.52% of app downloads within the user authentication SDK category.

AppAuth for Android is a client SDK for communicating with OAuth 2.0 and OpenID Connect providers. It strives to directly map the requests and responses of those specifications, while following the idiomatic style of the implementation language.

Total Apps
29.84k
Google Play
App Share
6.62%
Google Play
Apps
29.54k
Games
306
Total Downloads
67.33b
Google Play
Download Share
16.52%
Google Play
App Downloads
66.23b
Game Downloads
1.10b

Use the 42matters SDK Explorer to find all apps that use AppAuth by OpenID.

Among all apps utilizing user authentication SDKs, 3.71% have integrated Auth0. This accounts for 5.75% of app downloads within the user authentication SDK category.

Auth0 is an easy to implement, adaptable authentication and authorization platform. They make your login box awesome.

Total Apps
16.75k
Google Play
App Share
3.71%
Google Play
Apps
16.46k
Games
292
Total Downloads
23.44b
Google Play
Download Share
5.75%
Google Play
App Downloads
18.47b
Game Downloads
4.97b

Use the 42matters SDK Explorer to find all apps that use Auth0.

Among all apps utilizing user authentication SDKs, 1.35% have integrated Microsoft Authentication Library. This accounts for 7.22% of app downloads within the user authentication SDK category.

Total Apps
6.08k
Google Play
App Share
1.35%
Google Play
Apps
6.07k
Games
10
Total Downloads
29.43b
Google Play
Download Share
7.22%
Google Play
App Downloads
29.43b
Game Downloads
4.00m

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

Among all apps utilizing user authentication SDKs, 1.24% have integrated FingerprintJS. This accounts for <1% of app downloads within the user authentication SDK category.

Total Apps
5.61k
Google Play
App Share
1.24%
Google Play
Apps
5.56k
Games
51
Total Downloads
3.40b
Google Play
Download Share
<1%
Google Play
App Downloads
3.21b
Game Downloads
183.23m

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

Among all apps utilizing user authentication SDKs, 1.02% have integrated Mitek MiSnap. This accounts for <1% of app downloads within the user authentication SDK category.

Mitek MiSnap is a patented mobile capture SDK that enables an intuitive user experience and instant capture of quality images.

Total Apps
4.62k
Google Play
App Share
1.02%
Google Play
Apps
4.62k
Games
0
Total Downloads
1.61b
Google Play
Download Share
<1%
Google Play
App Downloads
1.61b
Game Downloads
257.99k

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

Among all apps utilizing user authentication SDKs, <1% have integrated Signpost. This accounts for 3.87% of app downloads within the user authentication SDK category.

Signpost is the easy and intuitive solution for signing HTTP messages on the Java platform in conformance with the OAuth Core 1.0a standard. The Signpost SDK follows a modular and flexible design, allowing you to combine it with different HTTP messaging layers.

Total Apps
2.23k
Google Play
App Share
<1%
Google Play
Apps
2.00k
Games
229
Total Downloads
15.77b
Google Play
Download Share
3.87%
Google Play
App Downloads
14.35b
Game Downloads
1.42b

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

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

Total Apps
1.97k
Google Play
App Share
<1%
Google Play
Apps
1.97k
Games
3
Total Downloads
2.60b
Google Play
Download Share
<1%
Google Play
App Downloads
2.60b
Game Downloads
1.38m

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

Among all apps utilizing user authentication SDKs, <1% have integrated Facetec. This accounts for 1.25% of app downloads within the user authentication SDK category.

Total Apps
1.13k
Google Play
App Share
<1%
Google Play
Apps
1.06k
Games
61
Total Downloads
5.11b
Google Play
Download Share
1.25%
Google Play
App Downloads
5.00b
Game Downloads
110.18m

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

Among all apps utilizing user authentication SDKs, <1% have integrated SumSub. This accounts for <1% of app downloads within the user authentication SDK category.

Total Apps
873
Google Play
App Share
<1%
Google Play
Apps
859
Games
14
Total Downloads
1.52b
Google Play
Download Share
<1%
Google Play
App Downloads
1.48b
Game Downloads
32.88m

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

Among all apps utilizing user authentication SDKs, <1% have integrated iProov. This accounts for <1% of app downloads within the user authentication SDK category.

Total Apps
825
Google Play
App Share
<1%
Google Play
Apps
823
Games
2
Total Downloads
870.92m
Google Play
Download Share
<1%
Google Play
App Downloads
870.62m
Game Downloads
303.68k

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

Among all apps utilizing user authentication SDKs, <1% have integrated Regula Document Reader. This accounts for <1% of app downloads within the user authentication SDK category.

Regula is an OCR SDK for document data capture and text recognition. It enables id card scanning and passports and driving licenses on the go.

Total Apps
774
Google Play
App Share
<1%
Google Play
Apps
774
Games
0
Total Downloads
468.17m
Google Play
Download Share
<1%
Google Play
App Downloads
468.16m
Game Downloads
13.52k

Use the 42matters SDK Explorer to find all apps that use Regula Document Reader.

Among all apps utilizing user authentication SDKs, <1% have integrated Onfido Capture. This accounts for <1% of app downloads within the user authentication SDK category.

The Onfido Capture SDK is an AI-based technology that assesses whether a user’s government-issued ID is genuine or fraudulent. It then compares it against their facial biometrics.

Total Apps
691
Google Play
App Share
<1%
Google Play
Apps
678
Games
13
Total Downloads
1.58b
Google Play
Download Share
<1%
Google Play
App Downloads
1.58b
Game Downloads
2.51m

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

Among all apps utilizing user authentication SDKs, <1% have integrated Sinch. This accounts for <1% of app downloads within the user authentication SDK category.

Sinch is an SDK that enables developers to connect with customers and make engagement personal with simple, programmable SMS, voice, video, and verification tools.

Total Apps
660
Google Play
App Share
<1%
Google Play
Apps
659
Games
1
Total Downloads
792.51m
Google Play
Download Share
<1%
Google Play
App Downloads
791.74m
Game Downloads
769.15k

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

Among all apps utilizing user authentication SDKs, <1% have integrated Okta. This accounts for <1% of app downloads within the user authentication SDK category.

Total Apps
610
Google Play
App Share
<1%
Google Play
Apps
610
Games
0
Total Downloads
147.30m
Google Play
Download Share
<1%
Google Play
App Downloads
147.13m
Game Downloads
169.51k

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

Among all apps utilizing user authentication SDKs, <1% have integrated Jumio Mobile. This accounts for <1% of app downloads within the user authentication SDK category.

Jumio Mobile offers an end-to-end ID, identity verification, and authentication solution SDK. It fights fraud, maintains compliance, and onboards good customers faster.

Total Apps
554
Google Play
App Share
<1%
Google Play
Apps
552
Games
2
Total Downloads
580.08m
Google Play
Download Share
<1%
Google Play
App Downloads
579.57m
Game Downloads
515.22k

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

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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.