Observed arrival · 2026-09-08

Castunes, the phone-first music shelf

castunes.app Observed source

Editorial interest 84/100 Selection signal · not a rating of the site

An Android app that lets independent artists upload and publish singles, EPs, or full records directly from a phone.

Landing page captured for the 2026-09-08 issue.

Field notes

Castunes describes a direct-to-phone publishing workflow for singles, EPs, and full records, with explicit-content marking and ownership rules built into the upload process. Its listener side is described as a feed with hand-picked playlists, follows, lyrics, and recommendations based on playback. The available Android package is listed as version 1.1, 17 MB, and compatible with Android 7 or newer. Installation requires sideloading the APK and allowing the browser to install it.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

One card from the complete issue

1985 at 160× Speed

370,686 arrived 1,000 judged 998 catalogued Enter the complete issue