Rubber Ring

about

description

Rubber Ring is a tool for practicing song parts. Pick an audio file, mark a start/stop region on its waveform, and play it back in a seamless, gapless loop. It auto-detects tempo and beats to snap the loop markers to a beat grid, with full manual override. Early-stage release — expect rough edges. Feedback and bug reports welcome via Issues. Features: * Import-and-own library — picked files are copied into app-private storage, so loops never break when the original is moved, renamed, or deleted. * Waveform region selection with gapless looping — drag start/stop handles to mark a section; the loop boundary wraps with zero audible gap or click. * Automatic, hand-editable beat grid — a dependency-free estimator finds BPM and a downbeat, and handles snap to the beat grid. * Chord detection with a hand-editable chord lane — chords are labelled over the waveform; tap to relabel, split or merge. Detection is tuned to the author's own material, so the lane is there to correct by hand, and can be turned off. * Per-track audio normalization — boost a track that was mixed too quietly, by peak or by loudness; your original file is never altered. * Adjustable playback speed — slow a tricky passage down (or speed it up) without changing pitch. * Count-in — long-press Play to start after a metronome counts you in at the track's tempo. * Saved loops and practice arrangements — capture named sections per track and chain them into a sequence, each repeated as many times as you set. * Export a saved loop as a WAV file, at the current speed, for a DAW or to share. * Backup & restore — export your whole library to a file and restore it after a reinstall. * English and German, with optional German note names (H and B) for chords. * Opens audio shared from other apps. No ads, no trackers, no network access.

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-09-29T10:41:08.601096+00:00

last event

2026-10-18 15:22 UTC

install

zapstore.dev or any Zapstore-compatible client

source & build

repository

https://github.com/mkay/rubberring

arch flags

android-arm64-v8a android-armeabi-v7a android-x86 android-x86_64

manifest

missing

releases (kind 30063)

3 releases indexed; latest 0.14.

version	channel	released	event
0.14	main	2026-10-18 15:22 UTC	ba56b507…
0.13	main	2026-10-12 09:32 UTC	b1f5b121…
0.12	main	2026-09-29 10:09 UTC	8db83c52…

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

0.14 — RubberRing-0.14.apk

sha256

d3b470511327cadabdd9fd827449c6a8a3334414e610394e6a10998aa9ffb134

size

13.2 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

15

apk cert sha256

d27687051e30d6f7098dd66d686d2260c42aa4a9ad14aa61a08a4c255b78e9a5

download

RubberRing-0.14.apk

0.13 — RubberRing-0.13.apk

sha256

32720455a048a5eaa7aa8042caae498cfcd5a6728389ffd44c0eec6044b4fc98

size

13.2 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

14

apk cert sha256

d27687051e30d6f7098dd66d686d2260c42aa4a9ad14aa61a08a4c255b78e9a5

download

RubberRing-0.13.apk

0.12 — RubberRing-0.12.apk

sha256

ea0ae9d355c215607336bee10541b2207272737e4f016eb242ae2f9b8a8f034b

size

13.2 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

13

apk cert sha256

d27687051e30d6f7098dd66d686d2260c42aa4a9ad14aa61a08a4c255b78e9a5

download

RubberRing-0.12.apk

Showing the newest 3 asset descriptors; the full set is in /api/apps/78ce6faa…