Based on a run/walk program, this is the best beginners Half Marathon Trainer!
About Half Marathon Trainer 13.1 21K
Half Marathon Trainer 13.1 21K is a health & fitness app developed by Zen Labs Fitness.
How many times has Half Marathon Trainer 13.1 21K been downloaded?
Half Marathon Trainer 13.1 21K has been downloaded 58 thousand times. In the last 30 days, the app was downloaded 260 times.
What is the rating of Half Marathon Trainer 13.1 21K?
Half Marathon Trainer 13.1 21K is rated 4.57 out of 5 stars, based on 890 ratings.
Is Half Marathon Trainer 13.1 21K free?
Half Marathon Trainer 13.1 21K is free to download. The APK download size is 95.69 MB. The latest version available is 96.03. The last update was on December 17, 2025.
What are the requirements for Half Marathon Trainer 13.1 21K?
Half Marathon Trainer 13.1 21K requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play March 2012.
Description
■ The Official Half-Marathon Trainer App ■ 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!
From the same makers of the #1 C25K Trainer app, Half Marathon Trainer follows the same successful recipe to create an easy simple 13.1 (21k) program, best suited for first-time half marathoners and those who are new to running. The program uses a blend of running and power walking in training and racing. You’ll soon be able to run-walk the entire half marathon.
≈ Free Trial ≈ ◉ Train the first week for free!
≈ Real-Life Inspirational Transformations ≈ ◎ Over 175,000 Likes and 1500 Success Photos at facebook.com/c25kfree ◎ Our community inspires one another (and inspires us!) everyday. Hear some of their amazing stories.
===================================================== ★ This app will train you to complete a full 13.1 (26K) distance using a RUN/WALK strategy ★ =====================================================
This proven 14 week plan is designed for true beginner/novice runners who want to train for a half marathon, but have very little running experience. This run/walk program is perfect for newcomers, as the walk breaks help mentally break up the race into segments, so you can focus on one section at a time. These breaks help make the half/full marathon less grueling, as well as reduces the overall impact and risk of injury.
But don't think that just because walking is involved that your time will be slower, or that you're accomplishing less. Many veteran runners have posted personal best times after switching to this run walk method! By using a ratio of running and walking, you can manage your fatigue which gives you the muscle resource and mental confidence to handle the later parts of the race.
Slowly build strength and stamina, and the blend of walking and running together reduces the overall impact and risk of injury. By the end of the program, you will be READY for your 13.1 (21k) race!
Turn on our award winning music and just press start! Our audio coach will guide you through your run! It's that easy!
★ Features ★ ◉ Proven 14 week Half-marathon training run-walk program (1st week free) ◉ Convenient audio coach and alerts ◉ Map your run at the end of your workout! ◉ Light and dark modes ◉ 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 and distance stats ◉ Full access to C25K, 10K, 13.1, and 26.2 programs ◉ 4 apps for the price of 1!
★ Love this app? We have a complete suite of health and fitness apps that covers all your fitness needs. 7 Minute Workout - https://goo.gl/WQuX61 0-100 Pushups Trainer - https://goo.gl/IfCFCh
★ The Forums are a great place to ask all your fitness questions! http://forums.zenlabsfitness.com
Questions/comments regarding the app? Please email us at contactus@zenlabsfitness.com, or visit us at www.zenlabsfitness.com.
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.
Recent changes: A bunch of new updates just in time for Summer! Lets smash some goals and reach new heights of health and happiness!
Proud partners with Google WearOS and Samsung to be the featured running trainer!
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Comments on Half Marathon Trainer 13.1 21K for Android
★★★★★E C· Jan 21, 2026
This is my go-to run training app. I use it every time I get back into running or race training. It's reliable and sets attainable goals.
★★★★★James Bell· Jul 18, 2025
Preparing for a Disney 10K and maybe a half-marathon with granddaughters who are 45 to 50 year younger. The "Jeffing" routine is ideal....4 minute run then 1-minute walk repeat 26 times. I get about 11.5 miles in their time frame, but it tells me I could do a Disney half-marathon in the Disney time frame and not get picked up by the ballon ladies for being too slow!!$
★★★★★kristine rjauka· Jun 12, 2021
Great app. Helped me with 4 half-marathons, and now I will go for my fifth. Love the work-out routine as it is not overly intense. Highly recommended for anyone who wants a challenge and is not a running lover like me.
★★★★☆Jennifer P· Aug 16, 2021
Ok. It is functional however the tracker tracks me different mileage and different routes when I run the exact same route day after day. I doubt that the actual mileage is correct, so I would not use it as a tracker for PR's by any means which sucks because runners want to know their times and mileage. I will look for a better ap.
★☆☆☆☆Erin Matson· Oct 16, 2022
I purchased this app a couple of years ago and loved it! Like others, I got a new phone and now the app wants me to buy a subscription. Not impressed...
★★☆☆☆Doc Siphon· Aug 30, 2025
I bought this app years ago. It was a great training aid. However, I got injured doing army stuff and stepped away from long-distance running. I recently re-installed it, and now it's requiring a subscription.
★★☆☆☆Dianna Petrosky· Jan 8, 2023
I would give more stars because I do love this app for training for the half-marathon my sister and I run every year but super pissed now because I've used it no problem for the last 4 years and now It's forcing me to pay a fee to go pro otherwise you can't go past the first week. Considering I paid for this app. Guess they want to lose customers now.
Google Play Rankings for Half Marathon Trainer 13.1 21K
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Technologies used by Half Marathon Trainer 13.1 21K
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