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Top 20 User Authentication SDKs Used in iOS Apps on the Apple App Store
Last update: 24 Feb 2024 CET
App Store

Top 20 User Authentication SDKs Used in iOS Apps on the Apple App Store

We at 42matters have identified the 20 most popular User Authentication SDKs leveraged by iOS apps available on the iOS 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 Apple App 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, 62.50% have integrated Apple Accounts. This accounts for 58.89% of app downloads within the user authentication SDK category.

Total Apps
228.73k
App Store
App Share
62.50%
App Store
Apps
184.00k
Games
44.73k
Total Downloads
74.12b
App Store
Download Share
58.89%
App Store
App Downloads
49.03b
Game Downloads
25.09b

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

Among all apps utilizing user authentication SDKs, 48.06% have integrated AppAuth by OpenID. This accounts for 31.86% 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
175.88k
App Store
App Share
48.06%
App Store
Apps
171.06k
Games
4.82k
Total Downloads
40.09b
App Store
Download Share
31.86%
App Store
App Downloads
33.91b
Game Downloads
6.18b

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

Among all apps utilizing user authentication SDKs, 4.43% have integrated Amazon AWS Cognito Federated Identities. This accounts for 4.83% of app downloads within the user authentication SDK category.

Total Apps
16.23k
App Store
App Share
4.43%
App Store
Apps
15.79k
Games
438
Total Downloads
6.07b
App Store
Download Share
4.83%
App Store
App Downloads
4.25b
Game Downloads
1.82b

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

Among all apps utilizing user authentication SDKs, 3.69% have integrated Google reCAPTCHA. This accounts for 6.72% of app downloads within the user authentication SDK category.

Total Apps
13.49k
App Store
App Share
3.69%
App Store
Apps
12.78k
Games
711
Total Downloads
8.46b
App Store
Download Share
6.72%
App Store
App Downloads
6.38b
Game Downloads
2.09b

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

Among all apps utilizing user authentication SDKs, 1.53% have integrated Mitek MiSnap. This accounts for 2.78% 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
5.59k
App Store
App Share
1.53%
App Store
Apps
5.59k
Games
0
Total Downloads
3.50b
App Store
Download Share
2.78%
App Store
App Downloads
3.50b
Game Downloads
343

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

Among all apps utilizing user authentication SDKs, 1.43% have integrated OAuthSwift. This accounts for <1% of app downloads within the user authentication SDK category.

OAuthSwift is a Swift-based OAuth library SDK for iOS and macOS.

Total Apps
5.25k
App Store
App Share
1.43%
App Store
Apps
5.24k
Games
9
Total Downloads
499.42m
App Store
Download Share
<1%
App Store
App Downloads
492.18m
Game Downloads
7.23m

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

Among all apps utilizing user authentication SDKs, 1.31% have integrated FCUUID. This accounts for 1.95% of app downloads within the user authentication SDK category.

FCUUID is an iOS UUID library SDK and an alternative to UDID and identifierForVendor. This library provides the simplest API to obtain universally unique identifiers with different levels of persistence.

Total Apps
4.81k
App Store
App Share
1.31%
App Store
Apps
4.60k
Games
208
Total Downloads
2.45b
App Store
Download Share
1.95%
App Store
App Downloads
2.22b
Game Downloads
226.14m

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

Among all apps utilizing user authentication SDKs, <1% have integrated Auth0. This accounts for <1% 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
3.56k
App Store
App Share
<1%
App Store
Apps
3.55k
Games
8
Total Downloads
1.01b
App Store
Download Share
<1%
App Store
App Downloads
1.01b
Game Downloads
37.48k

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

Among all apps utilizing user authentication SDKs, <1% have integrated FraudForce by iovation. This accounts for 2.85% of app downloads within the user authentication SDK category.

Total Apps
2.42k
App Store
App Share
<1%
App Store
Apps
2.40k
Games
15
Total Downloads
3.59b
App Store
Download Share
2.85%
App Store
App Downloads
3.58b
Game Downloads
841.67k

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

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

Total Apps
1.79k
App Store
App Share
<1%
App Store
Apps
1.78k
Games
7
Total Downloads
144.04m
App Store
Download Share
<1%
App Store
App Downloads
141.26m
Game Downloads
2.78m

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

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
1.55k
App Store
App Share
<1%
App Store
Apps
1.54k
Games
11
Total Downloads
1.00b
App Store
Download Share
<1%
App Store
App Downloads
996.77m
Game Downloads
6.17m

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

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
1.38k
App Store
App Share
<1%
App Store
Apps
1.38k
Games
1
Total Downloads
392.57m
App Store
Download Share
<1%
App Store
App Downloads
392.56m
Game Downloads
13.68k

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

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
753
App Store
App Share
<1%
App Store
Apps
712
Games
41
Total Downloads
593.22m
App Store
Download Share
<1%
App Store
App Downloads
472.30m
Game Downloads
120.91m

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

Among all apps utilizing user authentication SDKs, <1% have integrated Onfido Capture. This accounts for 1.14% 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
679
App Store
App Share
<1%
App Store
Apps
657
Games
22
Total Downloads
1.44b
App Store
Download Share
1.14%
App Store
App Downloads
1.42b
Game Downloads
20.20m

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

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
582
App Store
App Share
<1%
App Store
Apps
579
Games
3
Total Downloads
999.70m
App Store
Download Share
<1%
App Store
App Downloads
999.55m
Game Downloads
153.41k

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

Among all apps utilizing user authentication SDKs, <1% have integrated Facetec. This accounts for 3.48% of app downloads within the user authentication SDK category.

Total Apps
571
App Store
App Share
<1%
App Store
Apps
569
Games
2
Total Downloads
4.38b
App Store
Download Share
3.48%
App Store
App Downloads
4.38b
Game Downloads
59.77k

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

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
506
App Store
App Share
<1%
App Store
Apps
506
Games
0
Total Downloads
442.14m
App Store
Download Share
<1%
App Store
App Downloads
442.10m
Game Downloads
35.28k

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

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

Total Apps
319
App Store
App Share
<1%
App Store
Apps
137
Games
182
Total Downloads
754.77m
App Store
Download Share
<1%
App Store
App Downloads
562.76m
Game Downloads
192.01m

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

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

Veriff is an SDK that collects more data points than any other identity verification provider.

Total Apps
301
App Store
App Share
<1%
App Store
Apps
297
Games
4
Total Downloads
223.49m
App Store
Download Share
<1%
App Store
App Downloads
222.63m
Game Downloads
863.92k

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

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 platforms (the Explorer and App Watchlist) 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 App Watchlist and 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.