Platform
Category
Top 20 User Authentication SDKs Used in Android Apps on Google Play
Last update: 21 Feb 2025 CET
Android iconGoogle Play

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, 75.48% have integrated Firebase Authentication. This accounts for 56.17% of app downloads within the user authentication SDK category.

Total Apps
344.52k
Google Play
App Share
75.48%
Google Play
Apps
324.72k
Games
19.80k
Total Downloads
224.95b
Google Play
Download Share
56.17%
Google Play
App Downloads
159.88b
Game Downloads
65.06b

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

Among all apps utilizing user authentication SDKs, 36.49% have integrated Google reCAPTCHA. This accounts for 25.07% of app downloads within the user authentication SDK category.

Total Apps
166.54k
Google Play
App Share
36.49%
Google Play
Apps
155.50k
Games
11.04k
Total Downloads
100.38b
Google Play
Download Share
25.07%
Google Play
App Downloads
65.89b
Game Downloads
34.50b

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

Among all apps utilizing user authentication SDKs, 9.41% have integrated Truecaller. This accounts for 3.63% of app downloads within the user authentication SDK category.

Total Apps
42.93k
Google Play
App Share
9.41%
Google Play
Apps
42.89k
Games
42
Total Downloads
14.53b
Google Play
Download Share
3.63%
Google Play
App Downloads
14.18b
Game Downloads
356.01m

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

Among all apps utilizing user authentication SDKs, 9.00% have integrated OTPless. This accounts for <1% of app downloads within the user authentication SDK category.

Total Apps
41.10k
Google Play
App Share
9.00%
Google Play
Apps
41.07k
Games
25
Total Downloads
1.55b
Google Play
Download Share
<1%
Google Play
App Downloads
1.51b
Game Downloads
40.20m

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

Among all apps utilizing user authentication SDKs, 7.27% have integrated Amazon AWS Cognito Federated Identities. This accounts for 8.30% of app downloads within the user authentication SDK category.

Total Apps
33.16k
Google Play
App Share
7.27%
Google Play
Apps
32.76k
Games
398
Total Downloads
33.24b
Google Play
Download Share
8.30%
Google Play
App Downloads
24.63b
Game Downloads
8.62b

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

Among all apps utilizing user authentication SDKs, 6.56% have integrated AppAuth by OpenID. This accounts for 16.61% 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
29.95k
Google Play
App Share
6.56%
Google Play
Apps
29.59k
Games
362
Total Downloads
66.50b
Google Play
Download Share
16.61%
Google Play
App Downloads
65.24b
Game Downloads
1.26b

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

Among all apps utilizing user authentication SDKs, 3.59% have integrated Auth0. This accounts for 5.54% 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
16.39k
Google Play
App Share
3.59%
Google Play
Apps
16.11k
Games
277
Total Downloads
22.17b
Google Play
Download Share
5.54%
Google Play
App Downloads
17.27b
Game Downloads
4.90b

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

Among all apps utilizing user authentication SDKs, 1.32% have integrated Microsoft Authentication Library. This accounts for 7.28% of app downloads within the user authentication SDK category.

Total Apps
6.01k
Google Play
App Share
1.32%
Google Play
Apps
6.00k
Games
9
Total Downloads
29.15b
Google Play
Download Share
7.28%
Google Play
App Downloads
29.14b
Game Downloads
3.98m

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

Among all apps utilizing user authentication SDKs, 1.27% have integrated FingerprintJS. This accounts for <1% of app downloads within the user authentication SDK category.

Total Apps
5.79k
Google Play
App Share
1.27%
Google Play
Apps
5.74k
Games
52
Total Downloads
3.24b
Google Play
Download Share
<1%
Google Play
App Downloads
3.07b
Game Downloads
175.81m

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
4.66k
Google Play
App Share
1.02%
Google Play
Apps
4.66k
Games
0
Total Downloads
1.60b
Google Play
Download Share
<1%
Google Play
App Downloads
1.60b
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 3.84% 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
2.25k
Google Play
App Share
<1%
Google Play
Apps
2.06k
Games
190
Total Downloads
15.39b
Google Play
Download Share
3.84%
Google Play
App Downloads
14.15b
Game Downloads
1.25b

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
2.00k
Google Play
App Share
<1%
Google Play
Apps
1.99k
Games
3
Total Downloads
2.59b
Google Play
Download Share
<1%
Google Play
App Downloads
2.59b
Game Downloads
1.36m

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
1.12k
Google Play
App Share
<1%
Google Play
Apps
1.05k
Games
68
Total Downloads
5.02b
Google Play
Download Share
1.25%
Google Play
App Downloads
4.91b
Game Downloads
108.62m

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
858
Google Play
App Share
<1%
Google Play
Apps
846
Games
12
Total Downloads
1.47b
Google Play
Download Share
<1%
Google Play
App Downloads
1.43b
Game Downloads
32.81m

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
822
Google Play
App Share
<1%
Google Play
Apps
820
Games
2
Total Downloads
858.27m
Google Play
Download Share
<1%
Google Play
App Downloads
858.01m
Game Downloads
266.02k

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
763
Google Play
App Share
<1%
Google Play
Apps
763
Games
0
Total Downloads
441.70m
Google Play
Download Share
<1%
Google Play
App Downloads
441.69m
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 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
717
Google Play
App Share
<1%
Google Play
Apps
716
Games
1
Total Downloads
783.05m
Google Play
Download Share
<1%
Google Play
App Downloads
782.28m
Game Downloads
769.13k

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

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
678
Google Play
App Share
<1%
Google Play
Apps
668
Games
10
Total Downloads
1.36b
Google Play
Download Share
<1%
Google Play
App Downloads
1.36b
Game Downloads
2.10m

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

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
608
Google Play
App Share
<1%
Google Play
Apps
608
Games
0
Total Downloads
154.46m
Google Play
Download Share
<1%
Google Play
App Downloads
154.29m
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 Kount by Equifax. This accounts for <1% of app downloads within the user authentication SDK category.

Total Apps
568
Google Play
App Share
<1%
Google Play
Apps
566
Games
2
Total Downloads
1.72b
Google Play
Download Share
<1%
Google Play
App Downloads
1.72b
Game Downloads
229.81k

Use the 42matters SDK Explorer to find all apps that use Kount by Equifax.

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.