Octi

All your Android devices, closer together than ever.

Octi facilitates cross-device information exchange/monitoring/synchronization.

Information modules:

Battery: Charge level, speed and estimates.
Connectivity: Wifi SSID, IP.
Installed apps: Last installed app, app list.
Clipboard: Copy clipboard text into Octi to share it with other devices.
...

Synchronization options:

Google Drive: Easy to use if all devices use the same account.
Octi Server: End-To-End encrypted server that doesn't require a Google account.

Companion clients (early-stage, talk to the same Octi Server):

Octi Desktop — Compose Multiplatform desktop client (Linux / macOS / Windows).
Octi Web — Browser-based client, connects directly to your self-hosted Octi Server.

Community clients, built and maintained by others:

octi-home-assistant by @alsd4git, exposes Octi device state as Home Assistant entities. Installable through HACS.

Writing your own client? The sync protocol reference documents the Octi Server wire protocol: linking, HTTP API, change notifications, and end-to-end encryption, and branding/ covers when you may use the Octi icon and how to name your project.

Hungry for details? Check the wiki. Still have questions? Join us on discord!

Got ideas for more? Make a feature request :)