■ The Official 10K Trainer app with millions of success stories!
■ Official partners and the ONLY C25K (Couch to 5K) app featured on FITBIT and SAMSUNG smart watches!
■ Featured on The New York Times, Los Angeles Times, The Washington Post, The Guardian, The Huffington Post, Men's Fitness, Forbes, Mashable, Glamour Magazine, Popsugar Fitness, CBS News, NBC News, Macworld, Cosmopolitan, Lifehacker, WebMD and many more!

"Daily programs that alternate between short bursts of walking and running until you're ready to go the distance." - Forbes

"One of the highest-rated health and fitness apps... A modest, realistic workout schedule." - Men's Fitness

≈ Real-Life Inspirational Transformations ≈
◎ Over 175,000 Likes and 1500 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

10K Trainer is the easiest program to get beginners from couch potatoes to 10K distance runners in just 14 weeks. By the same experts who created the #1 C25K® (Couch to 5K) training app!

Don’t worry, if you are already a 5K graduate, you can skip ahead and pick up where C25K® app leaves off!

This proven 14 week plan will allow users to slowly build strength and stamina by alternating between walking and running. The blend of walking and running together reduces the overall impact and risk of injury, keeps your body guessing, and prepares you to go the distance. By the end of the program, you will be stronger and healthier than you have ever been. You'll be a 10K runner!

Turn on our award winning music and just press start! Our audio coach will guide you through your run! It's that easy!

≈ Less is More ≈
◎ Easy to learn. Just press start!
◎ Ideal for beginners.
◎ 14 weeks total.

≈ Features ≈
◉ Easiest 10k program at only 3 times/week
◉ Convenient audio coach and alerts
◉ Map your run at the end of your workout!
◉ Light and dark modes
◉ Health app integration
◉ Free iPad integration for indoor treadmills
◉ Integrated with Facebook, Twitter, and Instagram
◉ Access to our forums with thousands of veterans and newcomers starting the app. Join the community and meet other runners!

≈ NEW Zen Unlimited Pass - Try it for free! ≈
◉ Award winning music curated from top DJ's!
◉ Scientifically proven to increase motivation by 35%
◉ Unlimited access to all pro features across ALL Zen Labs Fitness running apps
◉ Unlock calories, distance, Apple watch integration, and more
◉ Full access to C25K, 10K, 13.1, and 26.2 programs
◉ 4 apps for the price of 1! One subscription, multiple apps!

Questions/comments? Please email us at, or visit us at

≈ Connect ≈
Facebook: @C25Kfree
Twitter: @C25Kfree
Instagram: @officialc25k
Hashtag: #C25K

Zen Labs is a proud supporter of the National Breast Cancer Coalition.

Subscription pricing and terms:

The subscription will automatically renew unless turned off in your iTunes Account Settings at least 24 hours before current period ends. You can go to your iTunes Account settings to manage your subscription and turn off auto-renew. Your iTunes Account will be charged when the purchase is confirmed. If you subscribe before your free trial ends, the rest of your free trial period will be forfeited as soon as your purchase is confirmed.

Privacy Policy & Terms of Use:

Legal Disclaimer

This app and any information given by it or by Zen Labs LLC are for educational purposes only. You should always consult your healthcare provider before beginning any fitness program.

C25K® is a registered trademark of Zen Labs LLC

What’s New

Version 6.8.27

◎ Apple Watch complications support
◎ Apple Watch subscription syncing bug fix

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.

Ratings and Reviews

4.8 out of 5
14.5K Ratings

14.5K Ratings

Jamie Camie ,

Thank you! Easy, helpful, encouraging app. Keep up the great work!

Great app. Very easy to use, and almost identical to the C25K app. After I completed the C25K running app, it gave me the option to download this 10K trainer, the next app in the series. Once I did, instead of starting me at the beginning, the program started me at week 6, because it recognized I was already capable of the 5K. That was a great's a huge perk how all these training apps are from the same company, so they're all connected and easy to use. It still gives you the "one minutes remaining" audible announcement, which is handy. I like all the voice notifications (when to begin running, stop running, and when I'm half-way) because then I can just go and listen to music, without having to look at my phone. Thanks for the easy-to-use, beginning runner-friendly app! Combined with healthy eating (and minimal extra sugar and bread), I am in the best shape I've been in, in 5 years.

Nay1012 ,

This app changed my life.

I have always felt like a runner in my head, but once my shoes hit the pavement it was proven otherwise. I would be winded after 1 minute of running and wouldn’t try again for a long time. I downloaded the C25K app August 2018 and really struggled the first two weeks. Fortunately the reminders and breaks in between running is what kept me pushing through the program. I was running 30 minutes non stop and enjoying the program in no time (2 months later). I took some time off because I had a hard time running in the winter time, but when spring came around I knew I was ready to jump back in. Naturally, I downloaded the 10K app. If you have completed the 5k program, it will start you off at week 9 which was great because I needed to ease back into running. Honestly, this is the best program. I feel like a runner, I have more stamina, I have lost 30lbs, and it’s all because of this app.

SKirtonBear2 ,

My audible Coach

I’ve been using this for a few years and it is better than ever with or without an Apple Watch.

The watch app is now easy to see with a large logo that pops up to let me decide if I need to read what I already heard in my ears (sometimes I’m distracted and missed the verbal cue), but the haptic buzz helps.

I’ve had to restart my training after two months off and 10K let me choose where to start. I backed up to several weeks earlier very easily.

I use RockMyRun’s music, and 10K’s verbal instructions weren’t lost- worked great together though I had to choose “None” in the app for the music.

I have used the app to play my own music and that works great, too.

You can set the screen to dark or light backgrounds depending on what you need.

The update makes the music and light controls easier to access and it has always given a short, and useful description of the time breakdown for warmups, walking, jogging, and cool down.

I recommend this app for getting your body ready to jog a 10K. It focuses on time spent, not actual distance. By the end of the training you can do a full 10K. It gets you there. Afterwards, you’ll need to work on upping your pace.


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Zen Labs LLC (CA)
175.1 MB

Requires iOS 11.0 and watchOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
This app may use your location even when it isn't open, which can decrease battery life.
In-App Purchases
  1. Zen Unlimited Pass Monthly $4.99
  2. Remove Ads $1.99
  3. Go To Pro $6.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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