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Outline 1.21.4 APK

Download Outline for Android as APK. Review the published package, device compatibility, version history, and installation guidance. version 1.21.4. Android SDK 29+.

Outline Foundation
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Version1.21.4
Version code496725
File size43.3 MB
UpdatedOct 7, 2026
Minimum Android SDK29
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Outline screenshots

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VERSION HISTORY

Older versions of Outline

VersionRelease dateSizeArchitecture
1.21.5Code 496766Oct 7, 202615.8 MBARM64View details1.21.4Code 496725Oct 7, 202643.3 MBARM64, ARM 32-bit, x86 32-bit, x86 64-bitCurrent page1.21.0Code 495734Oct 7, 202644.9 MBARM64, ARM 32-bit, x86 32-bit, x86 64-bitView details
FAQ

Installing Outline

Will this package work on my device?

Check the Android SDK and CPU architecture listed above. The final installation result also depends on your device software and the app's own requirements.

What if Android blocks the installation?

Check the browser or installer permission to install unknown apps. If another build is already installed, a different signing certificate or version downgrade may prevent installation.

GUIDES

Installation guides

More guides
arm64-v8a, armeabi-v7a, or x86_64? How to Choose the Right APKNot sure which APK to download? Learn how Android ABIs, CPU architecture, screen density, and minimum Android versions affect compatibility.APK Says This App Is Incompatible With Your Device: What to CheckDevice incompatibility can come from the minimum Android version, CPU architecture, split configuration, screen density, or required hardware. Find the right variant.APK Installation Failed? Common Causes and SolutionsWhen an APK fails to install, check the exact error, file integrity, Android version, CPU architecture, signature, split packages, storage, and system restrictions before removing an existing app.APK Installed but Won't Open or Keeps Crashing?A successful APK installation does not guarantee runtime compatibility. Diagnose missing icons, an app that does not respond, startup crashes, and feature-specific crashes by checking split packages, ABI, Android version, and app data.APK, APKS, APKM, XAPK, and AAB: Android Package Formats ExplainedCompare Android package formats, learn which ones install directly and which require an installer, and check compatibility and safety before downloading.
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