Question 1

Is the C25K app actually free?

Accepted Answer

Yes. The full 8-week training plan, audio coach, GPS run tracking and basic music controls are free. A premium upgrade removes ads and unlocks bonus features.

Question 2

How long does the program take?

Accepted Answer

Eight weeks, three workouts a week, 30 to 40 minutes per workout including warmup and cooldown. You can repeat any week if you need more time.

Question 3

Do I need to be in shape to start?

Accepted Answer

No. C25K is built for complete beginners. Week 1 starts with 60 seconds of jogging at a time. If you can walk briskly for 30 minutes, you are ready.

Question 4

Does it work on Apple Watch?

Accepted Answer

Yes. C25K is available standalone on Apple Watch, Garmin, Fitbit and Samsung wearables.

Question 5

Why is C25K the number 1 5K training app?

Accepted Answer

C25K Free is the official app from Zen Labs, built on the original 1996 program by Josh Clark. Featured in The New York Times, Forbes, Men's Fitness and 20+ other publications, with millions of finishers.

C25K® Free — The #1 Couch to 5K Running App. Run your first 5K in 8 weeks.