Rubber Ring

8 Downloads 10 Views v0.9 13.14 MB 4.1+

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(13.14 MB)

Editor's Overview

Rubber Ring is a local media player application developed by Kreuder, packaged as a single Android APK of version 0.9 weighing in at 13.14 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 13.14 MB, so it installs quickly even on modest connections.
This build is signed by "Kreuder" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

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.
* 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.

Details

Version	v0.9
Size	13.14 MB
Developer	Kreuder
Category	Local Media Player
Package	de.singular.looper
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	8

Frequently Asked Questions

Is Rubber Ring free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Rubber Ring require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Rubber Ring safe to install?
We link to the exact APK published by Kreuder. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Rubber Ring?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Rubber Ring

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded de.singular.looper.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Rubber Ring» by Kreuder and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.