Support
Write to hello@trinque.dev. One person reads it, and that person wrote the app.
What helps
If something went wrong, the useful things to say are which provider you were connected to — Apple Music, Local Files, MPD, an OpenSubsonic-compatible server like Navidrome, or Kodi — what you were doing, and what happened instead. A screenshot is worth a paragraph. If it involves a server of your own, its software and version narrows it down fast.
Moving to a new device
Settings ▸ Providers ▸ Export writes a file with your provider configuration in it, usernames and passwords included and unencrypted, and Import reads one back. It is your file: you make it, you keep it, you carry it. Nothing goes through me.
Your subscription
Subscriptions are Apple's to manage, not mine — they live in Settings ▸ your name ▸ Subscriptions on your device, and refunds go through Apple. I am glad to help with anything about the app itself.
Privacy
The privacy policy says what Sillon keeps on your device and what leaves it.