Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app C25K® - 5K Trainer FREE - (Go from Couch Potato to Running the 5K) by Zen Labs, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

C25K® - 5K Trainer FREE - (Go from Couch Potato to Running the 5K)

By Zen Labs

Open iTunes to buy and download apps.


- The OFFICIAL C25K® (Couch to 5K) program.
- Millions of success stories!
- The only 5K training app to be partners with MyFitnessPal for seamless integration.
- Featured on Glamour Magazine, Yahoo!’s Appolicious, Popsugar Fitness, Apple’s “What’s Hot”, Apple’s “New & Noteworthy”, CBS News, Fox News, Macworld and many more!
- Doctor recommended on

Our community is our number one priority. We answer each and every email. Most of our updates have been suggestions from our community. Questions? Comments? Suggestions? See why our community has made us the #1 5K training app.

≈ Real-Life Inspirational Transformations ≈
- Over 100,000 Likes and 1000 Success Photos at
- Our community inspires one another (and inspires us!) everyday. Hear some of their amazing stories.

"In this last year I have lost 97 lbs, gotten off insulin and 9 other medications, completed the C25K running app and started the 10k app. Life is a blessing." - Diana

“I went from a size 16 to a size 7. I tell anyone I can about the app. because it was nothing short of a life changer.” - Amber

"I'm now down 50 pounds from when I began C25K in August. I've gone through the program 3 times increasing my speed by a half MPH each time." - Claire

C25K® is the easiest program to get beginners from couch potatoes to 5K distance runners in 8 weeks.

The proven C25K program was designed for inexperienced runners who are just beginning an exercise routine.The plan's structure prevents new runners from giving up and at the same time challenges them to continue moving forward. C25K works because it starts with a mix of running and walking, gradually building up strength and stamina.

≈ Less is More ≈
◎ Simple and intuitive user interface
◎ Easy to learn. Just press start!
◎ Ideal for first-time runners
◎ 30 minutes a day, 3 days a week, 8 weeks total. You will finish your 5K! Millions of first timer runners have finished. You will too!

≈ Features ≈
◉ FULL featured program! Not a limited/lite version
◉ NEW skins! Customize the look of your app!
◉ Listen to your own favorite music and playlists while you train
◉ Compatible with Spotify, Pandora, and all music apps
◉ Convenient audio coach and alerts
◉ Compatible with Nike+ GPS and ALL GPS and pedometer apps.
◉ Integrated with Facebook, Twitter, and Instagram.
◉ Login to MyFitnessPal at the end of your workout to track your calories
◉ Convenient access to our forums with thousands of veterans and newcomers starting the app. Join the community and meet other runners!
◉ The only C25K app that works accurately while your device is locked!
◉ Free iPad integration for indoor treadmills

≈ Connect ≈
Hashtag: #C25K

Zen Labs is a proud supporter of the National Breast Cancer Coalition. We are passionate about finding a cure for breast cancer and proudly donate to their cause.

Legal Disclaimer

This app and any information given by it or by Zen Labs LLC are for educational purposes only. They are not intended nor implied to be a substitute for professional medical advice. You should always consult your healthcare provider before beginning any fitness program.

Continued use of GPS running in the background can dramatically decrease battery life.

C25K® is a registered trademark of Zen Labs LLC

What's New in Version 3.6

◎ More Apps page has been updated with new screenshots, to show our community which suite of apps will help them best achieve their fitness goals
◎ Voice alerts optimization

Thank you to our community of millions and millions of runners! We hope you love this update. If you haven't already, please join our amazing community of over 100,000 likes and 1000 personal success photos on Meet other amazing individuals who are also starting the program or seek advice from the wonderfully helpful veterans who have finished. Join our active forums at for any questions and help with getting started.

For support, contact us anytime! We answer each and every single email.


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4

Customer Reviews

Excellent training program, needs a little fixing!

I am currently on week 6 day 3 and I have gone from barely being able to jog for a minute and a half to running my 1st 5k (and not walking at all!) this past weekend. I am thankful for the progressive and easy training, however, at least once every 2 weeks the app decides to just... Stop working in the middle of my run. For example: I just completed week 6 day 2 today and that is 10 minute jog, 3 minute walk. The chime came on for me to begin my 10 minutes of jogging, but then never came on to change over to walking. When I stopped after jogging for something around 12 minutes (5 songs), I checked the app and it said I have only lapsed 6 total minutes! 5 of warm up and only 2 of jogging?! It was frustrating and this is not the first time this has happened. The app will quit itself if you lock the screen with it on, it won't play pandora through the app and constantly stops counting down or playing the chimes over my music. Most days, it's fine, but every 2 weeks it takes a total crap and doesn't work! Please fix these issues! I love the program otherwise.

We Can Do It!!!

I started this a month ago and Week 1 Day 1 killed me. I thought to myself, "I can't do this." But I stuck with it. The first week I lost 4lbs (water weight I presumed). I continued doing Week 1 on my second week and lost another 4lbs. The third week I had to stop due to really bad shin splints because my body wasn't used to jogging. It discouraged me but as soon as the pain in my knees were gone I hit the track again, and it was easier the third week. I have since began Week 2 and am ten pounds down. I gain and lose a few pounds but I think it's due to fat melting and gaining muscle. My family is noticing the difference and clothes is fitting a bit looser, only in increments of course. I never thought I could do it but here I am, going at my pace of course, but going nonetheless. I do run at night or earlier in the mornings because I'm so self conscious about it. I pray before every run and when things get rough while running I pray to God to give me the strength and endurance to keep going. Thank you for creating this app, it is truly a life changer.'s working!

I cannot believe the progress that can be made when you stick with this program! Week 1, I was hating 90 seconds of running, panting like a dog. I couldn't run 3x/week because my shin splits were so bad, so I had been doing twice a week then, and now I'm up to week 6, day 2 and going strong. I can't believe I can run (well, jog, an 11-min mile) for 20+ minutes straight!! I've already downloaded the 10k program in anticipation of finishing this in a couple weeks. Way to go, Zen Labs! I'm really impressed with the app, and pleased with my development. Thank you! (Oh, and this healthy running habit has helped me clean up my eating/drinking and I'm down 8.8 pounds in the last 7 weeks too!)

C25K® - 5K Trainer FREE - (Go from Couch Potato to Running the 5K)
View In iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 3.6
  • Size: 57.6 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Remove Ads$1.99