Apps similar to CustID include Amber Nostr Event Signer, which is free and open source. Other options are nos2x, nos2x-fox, Nostr Connect and noauth. In total there are five apps like CustID for the web and 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.
The Nostr Connect Chrome extension offers a secure way to sign Nostr events on web applications without exposing your private keys. Serving as a fork of the popular nos2x, it enhances user security and privacy by managing event signatures locally within the browser.
