C2K — Couch to 5K & 10K

Matt Brown | Timer

7 Downloads 12 Views v1.2 2.24 MB 4.1+

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(2.24 MB)

Editor's Overview

C2K — Couch to 5K & 10K is a timer application developed by Matt Brown, packaged as a single Android APK of version 1.2 weighing in at 2.24 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 2.24 MB, so it installs quickly even on modest connections.
This build is signed by "Matt Brown" — 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

C2K is an offline running trainer that guides you from the couch to running 5K, 10K, and beyond. Follow a clear plan, hear hands-free coaching, and keep your progress private — with no ads and no tracking.

Programs:
• Pre-C25K — 3-week gentle starter for absolute beginners
• Couch to 5K (C25K) — 9-week program, 3 runs per week
• Bridge to 10K (B210K) — 6-week bridge for C25K graduates
• Couch to 10K (C210K) — 14-week program, continues from C25K
• One Hour Runner — 13-week progression from 30 to 60 minutes continuous running
• 5K Improver — 8-week speed and stamina program for runners who can already complete 5K

Features:
• Audible voice prompts — "Start running", "Walk for 90 seconds", countdown warnings
• Customizable coaching — adjust voice speed/volume, countdown warning timing, and mid-interval cues
• Test voice playback before a workout, with Android text-to-speech diagnostics
• Vibration cues as an alternative or addition to voice
• Adjustable vibration strength and language selection
• Background workout timer — continues with screen off
• GPS tracking (optional) — records distance and pace; works without GPS too
• Treadmill mode — indoor runs without GPS
• Workout history — session log with total distance, time, best pace, longest run, and calorie estimates
• Progress tracking — remembers which weeks and days you've completed, with the option to reset
• In-app running guide — FAQ covering pacing, gear, and terminology
• Available in 8 languages — English, German, Spanish, French, Galician, Portuguese (Brazil), Russian, Turkish
• Works offline — no internet permission required
• No proprietary services required — compatible with GrapheneOS and privacy-focused devices

Permissions:
• FOREGROUND_SERVICE — keeps the workout timer running with screen off
• WAKE_LOCK — prevents the CPU sleeping mid-workout
• ACCESS_FINE_LOCATION — optional GPS for distance/pace tracking (you can skip this)
• POST_NOTIFICATIONS — workout notification with pause/stop controls
• VIBRATE — optional vibration cues during workouts

C2K is free software released under the GNU General Public License v3.

Details

Version	v1.2
Size	2.24 MB
Developer	Matt Brown
Category	Timer
Package	com.hackerapps.c2k
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	7

Frequently Asked Questions

Is C2K — Couch to 5K & 10K 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 C2K — Couch to 5K & 10K require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is C2K — Couch to 5K & 10K safe to install?
We link to the exact APK published by Matt Brown. 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 C2K — Couch to 5K & 10K?
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 C2K — Couch to 5K & 10K

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 com.hackerapps.c2k.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «C2K — Couch to 5K & 10K» by Matt Brown 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.