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Development Tools for Books & Reference Apps

Totals
Books & Reference Apps with SDKs

Verified SDK counts are based on apps decompiled by AppGoblin.

AndroidiOS
Books & Reference Apps2,6031,964
Monthly Installs72.2M-54214202
Top Companies (Android SDKs)
Top Companies (iOS SDKs)

Development Tools include SDKs, libraries, and platforms that assist developers in building, testing, and deploying mobile applications. Shown here for apps in the Books & Reference category.

AppGoblin has mapped and verified 37 companies with Android SDKs and 30 with iOS SDKs.

Mixed
🇺🇸
Google Google (google.com)

83.6M

81.4M
Open Source
Kotlin Kotlin (kotlinlang.org)

59.5M

Open Source
nanopb nanopb (github.com-nanopb)

30.7M
Mixed
Square Square (square.com)

62.8M

Open Source
JetBrains JetBrains (jetbrains.com)

32.5M

Open Source
Bumptech Bumptech (github.com-bumptech)

32.4M

4.3K
Open Source
Airbnb Engineering Airbnb Engineering (airbnb.io)

30.4M

-70984077
Open Source
Default Company Logo JetBrains IntelliJ (intellij.org)

17.2M

Open Source
Flutter Flutter (flutter.dev)

14.2M

4.2M
Open Source
Default Company Logo Checker Framework (checkerframework.org)

16.7M

Open Source
SDWebImage SDWebImage (github.com-SDWebImage)

-80115792
Open Source
Alamofire Alamofire (github.com-AlamoFire)

-169728984
Open Source
ReactiveX ReactiveX (reactivex.io)

18.6M

-177991934
Open Source
OpenID OpenID (github.com-openid)

19.9M
Open Source
🇺🇸
Sentry.io Sentry.io (sentry.io)

8.7M

11.5M
Mixed
🇺🇸
Facebook Facebook (facebook.com)

2.7M

2.9M
Tracking
🇺🇸
Snap Snap (snapchat.com)

4.4M

-86912852
Open Source
Greenrobot Greenrobot (greenrobot.org)

13.2M

Open Source
Reachability Reachability (github.com-tonymillion)

-86128248
Tracking
🇺🇸
Unity Unity (unity.com)

10.9M

389.9K
Open Source
🇺🇸
MongoDB MongoDB (mongodb.com)

2.3M

3M
Open Source
Expo Expo (expo.dev)

1M

1.5M
Open Source
Jake Wharton Jake Wharton (github.com-JakeWharton)

7.9M

Open Source
React Native React Native (reactnative.dev)

2.7M

Mixed
🇺🇸
Amazon Advertisement Amazon Advertisement (amazon.com)

3.4M

1.9M
Open Source
Divkit Divkit (divkit.tech)

588.1K

84.4K
Tracking
🇺🇸
Microsoft Microsoft (microsoft.com)

3.2M

14.4K
Open Source
BouncyCastle BouncyCastle (bouncycastle.org)

2.2M

Open Source
Apollo Apollo (apollographql.com)

2M

-87442114
Open Source
Starscream Starscream (github.com-daltoniam)

-88315217
Open Source
🇺🇸
PostHog PostHog (posthog.com)

70.7K

505.1K
Tracking
Rive Rive (rive.app)

45.2K

533.6K
Tracking
🇺🇸
Datadog Datadog (datadoghq.com)

1.9M

1.5M
Open Source
Mono Project Mono Project (mono-project.com)

84.5K

1.4K
Open Source
Swinject Swinject (github.com-Swinject)

-89693263
Mixed
🇷🇺
Yandex Yandex (yandex.com)

67.9K
Tracking
🇺🇸
New Relic New Relic (newrelic.com)

76.6K

585.9K
Open Source
Socket.IO Socket.IO (socket.io)

547.8K

Tracking
🇺🇸
Epic Games Epic Games (epicgames.com)

32.8K

333
Open Source
Eclipse Eclipse (eclipse.org)

2.1M

Tracking
Cocos Cocos (cocos.com)

126.8K

Open Source
KMP Coroutines KMP Coroutines (github.com/rickclephas)

34.8K
Open Source
🇺🇸
Amazon Web Services AWS Amazon Web Services AWS (amazonaws.com)

933K

Tracking
🇺🇸
Statsig Statsig (statsig.com)

507.6K

Open Source
Vanniktech Vanniktech (github.com-vanniktech)

191.2K

Open Source
Default Company Logo ONNX Runtime (onnxruntime.ai)

18.3K

Tracking
Cloudflare Cloudflare (cloudflare.com)

Open Source
🇺🇸
jQuery jQuery (jquery.com)

Open Source
🇺🇸
jsDelivr jsDelivr (jsdelivr.net)

1 of 1
SDK

SDK data is derived by downloading the app's Android APK or iOS IPA file and unzipped. We then check the app's data for SDK signatures in paths, AndroidManifest.xml and the Info.plist. Many apps are unable to be zipped. Downloading and opening the APK or IPA takes time and resources thus the smaller totals.

Android Companies: 37

iOS Companies: 30