Name: Tubik: Music Player
Rating: 5 (1 reviews)
Author: TGSdev

Tubik for Garmin is a companion app. On its own it plays nothing.

It needs two things you must already have:
  1. Tubik, the offline music player, on your phone, with your own music
     already imported into it.
  2. A relay server — the small public-HTTPS hop the watch and the phone meet
     on. The project runs one and the app is pre-filled with its address, so
     for most people this is not a separate step.

What it does with them: copies tracks from the phone's Tubik library onto the
watch over the watch's own Wi-Fi, then plays them offline — no phone on you,
no streaming subscription, no account.

How it works: the watch cannot reach the phone directly, so the phone opens an
outbound tunnel to the relay and the watch talks to the same relay. They find
each other by a nine-character device token that Tubik shows on the phone and
you type on the watch. The relay is a pipe: it forwards bytes between the two
and stores nothing.

Setup, once:
  • Tubik on the phone → More → Watch sync → copy the device token
  • Watch → Music → Providers → Tubik → Tubik setup → Device token
  • Pick tracks on the phone, sync, listen

Requirements: a Garmin watch with music storage, Wi-Fi the WATCH is connected
to (not the phone), and Tubik open on the phone while the sync runs.

Music comes from your own files in Tubik. This app does not search, stream or
sell music, and there is no catalogue in it.

Reviewer note: without a paired Tubik phone the app can only show its setup
screens — that is the whole app in that state, not a failure. Write to
nrg.ck.ua@gmail.com and we will arrange a live session with a phone on the
relay.

What leaves your devices

Only while you are on the sync screen in Tubik on the phone, and only for as
long as it is open:
  • the names of the folders and tracks you chose, so the watch can list them
  • the audio of those tracks, as they download to the watch

Both travel through the relay server between your phone and your watch, over
HTTPS. The relay is a pipe: it forwards the bytes and keeps no copy of your
music, no library listing, no play history and no account for you.

What identifies you: the nine-character device token, and nothing else. There
is no sign-up, no email, no name. The token is the routing key on the relay —
keep it to yourself, because anyone holding it can pull that phone's library
while Tubik is open on it.

What the watch app stores on the watch: your relay address, your token, your
sync selection, and the downloaded audio in the system's own encrypted media
cache. "Clear downloads" removes the audio; uninstalling removes the rest.

No analytics, no advertising, no location, no health or activity data. The
watch app requests exactly two permissions — Communications (to reach the
relay) and PersistedContent (to hold the downloaded audio in the system media
cache).

Full policy: https://airstep.github.io/tubik-privacy/