# C2K — Couch to 5K & 10K

> Open-source C25K trainer

Canonical page: [https://chrome-stats.com/d/id6796435384](https://chrome-stats.com/d/id6796435384)

## Overview

- **ID:** `id6796435384`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Mathew Brown
- **Category:** Health & Fitness
- **Version:** 1.2.17
- **Last updated:** 2026-09-13
- **First published:** 2026-08-27
- **Size:** 1.24 MB
- **Data as of:** 2026-09-18
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/c2k-couch-to-5k-10k/id6796435384)
- **Privacy policy:** [https://hackerapps.com/apps/c2k/privacy/ios/](https://hackerapps.com/apps/c2k/privacy/ios/)

## Description

Free, open-source running trainer for iOS. No account, no subscription, no ads, no tracking.

C2K is a free, open-source running trainer for iOS that guides you from the couch to running 5K, 10K, and beyond — 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
• Vibration cues as an alternative or addition to voice, with Light, Medium, and Strong strength presets
• Manual language selection, independent of your device language
• Background workout timer — continues with the screen off
• Lock screen controls — see interval progress and pause/resume from the lock screen or Control Center
• 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 entirely offline — no data ever leaves your device

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

## Rankings

- #1,836,244 — Overall

## Similar extensions and apps

- [5K-10K](https://chrome-stats.com/d/id6777458557) — 5.00 / 5
- [C25K](https://chrome-stats.com/d/id6754785583)
- [10K Runner, Couch to 10K Run](https://chrome-stats.com/d/id456591673) — 4.90 / 5
- [C25K® 5K Running Coach & Map](https://chrome-stats.com/d/id485971733) — 4.80 / 5
- [10K Trainer by C25K®](https://chrome-stats.com/d/id511600311) — 4.80 / 5
- [Run Trainer - Running Tracker](https://chrome-stats.com/d/id403963861) — 4.40 / 5
- [Bri5k](https://chrome-stats.com/d/id6759337828) — 5.00 / 5
- [RunCue 5K: Couch to 5K](https://chrome-stats.com/d/id6738362793) — 4.90 / 5
- [Run Countdown](https://chrome-stats.com/d/id6747313834)
- [Run 5k - couch to 5k program](https://chrome-stats.com/d/id313494823) — 3.90 / 5
- [Run Countdown Lite](https://chrome-stats.com/d/id6758400708)
- [5K Easy Runner - Couch to 5K](https://chrome-stats.com/d/id6762049379)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6796435384)