C25K C25K® Free
How it works Features Success stories Compare Blog FAQ
Get the app
🇬🇧English▾
  • 🇬🇧English
  • 🇪🇸Spanish
The C25K® Journal

Notes for new runners.

Training tips, gear advice, and honest motivation from the team behind the #1 Couch to 5K app. Lace up — we'll meet you at the finish line.

May 22, 2026

How to Survive Week 5 of C25K

Week 5, Day 3 asks you to jog 20 minutes straight — no walk breaks. Here's why it feels impossible, why you're more ready than you think, and how to get through it.

May 15, 2026

What to Eat Before Your First Run

You don't need a sports-science degree to fuel a 30-minute workout. A simple, beginner-friendly guide to eating before, during, and after your C25K sessions.

May 8, 2026

How to Choose Running Shoes as a Beginner

You don't need the most expensive shoe on the wall. A no-nonsense guide to picking your first pair of running shoes without overthinking it.

Apr 29, 2026

The Science Behind the Run-Walk Method

Alternating running and walking isn't cheating — it's the reason C25K works. The physiology of why intervals turn lifelong non-runners into runners.

Apr 21, 2026

Why Rest Days Make You a Faster Runner

C25K is three runs a week for a reason. The rest days between them are where the fitness actually happens — here's the case for doing less.

C25K C25K® Free

The official Couch to 5K® training app from Zen Labs. Helping millions become runners since 2011.

Product

  • How it works
  • Features
  • Compare
  • Blog
  • Download (iOS)
  • Download (Android)

More plans

  • 10K Trainer
  • 13.1 Half Marathon
  • 26.2 Marathon

Company

  • Press
  • Contact
  • Privacy
  • Terms
© 2026 Zen Labs Fitness, LLC. C25K® is a registered trademark. Made for runners, by runners.