Ramble is designed for Apple Watch & offline first - to capture voice quickly and queue up messages to send when it can. The slim relay backend uses cloud transcription (Grok Whisper currently), then holds the message in an inbox for your agent to pickup and process, then gets purged from the backend after acknowledgement.
No accounts, no signups. It uses Apple's App Attest for endpoint security. It works great with current gen personal agents like Muse, GrokBot, etc. (GrokBot supports incoming webhooks so its instant. Muse doesn't, so it polls every couple minutes (without waking the agent)) The linking process is surprisingly easy.
Would love to hear what you think!