Is this nsecBunker on Android?
New NIP proposed...
(unmerged)NIP-100: Android Signer Application
This NIP describes a method for 2-way communication between a android signer and any Nostr client on Android. The Android signer is an Android Application and the Client can be a Web Client or an Android Application.
https://github.com/nostr-protocol/nips/pull/868
NIPs Repo Status
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Total indexed NIPs: 135
Unmerged draft NIPs: 78
Merged draft NIPs: 49
final NIPs: 6
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Discussion
Sort of. It seems to be a standard so you can have one app manage keys and signing, and other apps on the same device can talk to it to request signatures.