Timer Bundle

5 Downloads 15 Views v0.3 9.79 MB 4.1+

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(9.79 MB)

Editor's Overview

Timer Bundle is a sports & health application developed by Michael Reuss, packaged as a single Android APK of version 0.3 weighing in at 9.79 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 9.79 MB, so it installs quickly even on modest connections.
This build is signed by "Michael Reuss" — 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

Universal Timers is a flexible interval timer app designed for sports training, including specialized support for activities like apnea or climbing training. Create custom timer bundles with multiple blocks, each containing work and rest phases that can be repeated.

Key features:
- Create custom timer bundles with named blocks
- Configure work and rest durations independently
- Set repetitions for entire blocks
- Dynamic duration adjustment: Use delta fields to gradually increase or decrease work and rest times during a set
- Minimum duration limits to prevent values from going negative
- Clean, modern Material Design 3 interface
- Dark mode support
- Swipe to delete timer bundles
- Save and manage multiple timer configurations

The delta feature is particularly useful for progressive training; for instance in apnea training you might focus on improving CO2 tolerance or O2 deprivation which some designated apps train by decreasing breathe-up times or increasing breath-hold times, respectively.

Details

Version	v0.3
Size	9.79 MB
Developer	Michael Reuss
Category	Sports & Health
Package	io.github.hitchclimber.universaltimers
Android	4.1+
Last Updated	Oct 30, 2026
Downloads	5

Frequently Asked Questions

Is Timer Bundle 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 Timer Bundle require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Timer Bundle safe to install?
We link to the exact APK published by Michael Reuss. 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 Timer Bundle?
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 Timer Bundle

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 io.github.hitchclimber.universaltimers.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Timer Bundle» by Michael Reuss 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.