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Top 20 User Authentication SDKs Used in Android Apps on Google Play
Last update: 19 Jan 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, 75.89% have integrated Firebase Authentication. This accounts for 56.48% of app downloads within the user authentication SDK category.

Total Apps
353.03k
Google Play
App Share
75.89%
Google Play
Apps
333.12k
Games
19.91k
Total Downloads
222.22b
Google Play
Download Share
56.48%
Google Play
App Downloads
157.68b
Game Downloads
64.54b

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

Among all apps utilizing user authentication SDKs, 35.36% have integrated Google reCAPTCHA. This accounts for 24.89% of app downloads within the user authentication SDK category.

Total Apps
164.51k
Google Play
App Share
35.36%
Google Play
Apps
153.79k
Games
10.72k
Total Downloads
97.92b
Google Play
Download Share
24.89%
Google Play
App Downloads
64.19b
Game Downloads
33.72b

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

Among all apps utilizing user authentication SDKs, 9.23% have integrated Truecaller. This accounts for 3.62% of app downloads within the user authentication SDK category.

Total Apps
42.95k
Google Play
App Share
9.23%
Google Play
Apps
42.91k
Games
41
Total Downloads
14.25b
Google Play
Download Share
3.62%
Google Play
App Downloads
13.90b
Game Downloads
345.28m

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

Among all apps utilizing user authentication SDKs, 8.83% have integrated OTPless. This accounts for <1% of app downloads within the user authentication SDK category.

Total Apps
41.09k
Google Play
App Share
8.83%
Google Play
Apps
41.07k
Games
26
Total Downloads
847.62m
Google Play
Download Share
<1%
Google Play
App Downloads
811.27m
Game Downloads
36.35m

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

Among all apps utilizing user authentication SDKs, 7.33% have integrated Amazon AWS Cognito Federated Identities. This accounts for 8.38% of app downloads within the user authentication SDK category.

Total Apps
34.09k
Google Play
App Share
7.33%
Google Play
Apps
33.63k
Games
460
Total Downloads
32.95b
Google Play
Download Share
8.38%
Google Play
App Downloads
24.34b
Game Downloads
8.61b

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

Among all apps utilizing user authentication SDKs, 6.48% have integrated AppAuth by OpenID. This accounts for 16.67% 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
30.13k
Google Play
App Share
6.48%
Google Play
Apps
29.76k
Games
373
Total Downloads
65.59b
Google Play
Download Share
16.67%
Google Play
App Downloads
64.42b
Game Downloads
1.17b

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

Among all apps utilizing user authentication SDKs, 3.51% have integrated Auth0. This accounts for 5.53% 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
16.32k
Google Play
App Share
3.51%
Google Play
Apps
16.06k
Games
268
Total Downloads
21.77b
Google Play
Download Share
5.53%
Google Play
App Downloads
17.01b
Game Downloads
4.76b

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

Among all apps utilizing user authentication SDKs, 1.28% have integrated Microsoft Authentication Library. This accounts for 7.32% of app downloads within the user authentication SDK category.

Total Apps
5.98k
Google Play
App Share
1.28%
Google Play
Apps
5.97k
Games
10
Total Downloads
28.81b
Google Play
Download Share
7.32%
Google Play
App Downloads
28.81b
Game Downloads
3.96m

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

Among all apps utilizing user authentication SDKs, 1.01% 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
4.69k
Google Play
App Share
1.01%
Google Play
Apps
4.69k
Games
0
Total Downloads
1.58b
Google Play
Download Share
<1%
Google Play
App Downloads
1.58b
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 3.80% 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
2.37k
Google Play
App Share
<1%
Google Play
Apps
2.20k
Games
175
Total Downloads
14.95b
Google Play
Download Share
3.80%
Google Play
App Downloads
13.91b
Game Downloads
1.04b

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
2.01k
Google Play
App Share
<1%
Google Play
Apps
2.00k
Games
3
Total Downloads
2.57b
Google Play
Download Share
<1%
Google Play
App Downloads
2.57b
Game Downloads
1.34m

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 1.27% of app downloads within the user authentication SDK category.

Total Apps
1.13k
Google Play
App Share
<1%
Google Play
Apps
1.06k
Games
69
Total Downloads
4.99b
Google Play
Download Share
1.27%
Google Play
App Downloads
4.88b
Game Downloads
106.51m

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
841
Google Play
App Share
<1%
Google Play
Apps
830
Games
11
Total Downloads
1.44b
Google Play
Download Share
<1%
Google Play
App Downloads
1.41b
Game Downloads
32.74m

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
840
Google Play
App Share
<1%
Google Play
Apps
838
Games
2
Total Downloads
959.83m
Google Play
Download Share
<1%
Google Play
App Downloads
959.59m
Game Downloads
244.19k

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

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
777
Google Play
App Share
<1%
Google Play
Apps
776
Games
1
Total Downloads
774.17m
Google Play
Download Share
<1%
Google Play
App Downloads
773.40m
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 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
758
Google Play
App Share
<1%
Google Play
Apps
758
Games
0
Total Downloads
433.51m
Google Play
Download Share
<1%
Google Play
App Downloads
433.50m
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
682
Google Play
App Share
<1%
Google Play
Apps
672
Games
10
Total Downloads
1.33b
Google Play
Download Share
<1%
Google Play
App Downloads
1.33b
Game Downloads
2.03m

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
613
Google Play
App Share
<1%
Google Play
Apps
613
Games
0
Total Downloads
155.53m
Google Play
Download Share
<1%
Google Play
App Downloads
155.37m
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
586
Google Play
App Share
<1%
Google Play
Apps
584
Games
2
Total Downloads
1.71b
Google Play
Download Share
<1%
Google Play
App Downloads
1.71b
Game Downloads
223.74k

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

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    Analyze installation and removal trends for SDKs. Discover which apps have removed or integrated specific SDKs in a given timeframe.

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    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.