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Amber

Nostr event signer for Android
Amber is a nostr event signer for Android. It allows users to keep their nsec segregated in a single, dedicated app. The goal of Amber is to have your smartphone act as a NIP-46 signing device without any need for servers or additional hardware. "Private keys should be exposed to as few systems as possible as each system adds to the attack surface," as the rationale of said NIP states. In addition to native apps, Amber aims to support all current nostr web applications without requiring any extensions or web servers.
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  • app screenshot
  • app screenshot

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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  • Version 6.0.3 (188) suggested Added on Apr 16, 2026

    arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions

    Download APK 34 MiB PGP Signature | Build Log

  • Version 6.0.1 (186) - Added on Apr 12, 2026

    arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions

    Download APK 34 MiB PGP Signature | Build Log

  • Version 5.0.4 (183) - Added on Mar 28, 2026

    arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions

    Download APK 35 MiB PGP Signature | Build Log

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