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Amber

Name: Amber
Author: greenart7c3

greenart7c3

Nostr event signer for Android

Internet
FOSS
Free
No ads
No tracking
Nostr

Android only

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What are these stores? F-Droid, GitHub, Zapstore

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.

Developer: greenart7c3
Source code: github.com/greenart7c3/Amber
Added to AppCosmos: 9 October 2026
License: MIT