--- title: "Half Marathon Trainer: 21K Run - Reviews, Revenue and Downloads in United States | Apple App Store" description: "The Ultimate 1/2 Marathon training app: 21K Runner is the easiest and most successful program for training for your first 21K. 21K Runner improves your fitness with an awesome training program. You s" --- # Half Marathon Trainer: 21K Run — United States > Half marathon training 13.1 mi ![Half Marathon Trainer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/a7/51/41/a7514101-252d-26dd-dd46-ff25a3bf461b/AppIcon-1x_U007emarketing-0-85-220-0-9.png/400x400bb.png) **Developer:** [FITNESS22](https://apptail.io/developer/fitness22-cxj) (United Kingdom) **Category:** Health Fitness **Rating:** 4.8/5 (1,674 ratings) **Price:** Free **Bundle ID:** com.heavydutyapps.Run21K **Store:** Apple App Store **Country:** United States **Version:** 8.004 (released 2018-09-11) **Original Release:** 2012-05-16 **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id521810715) **AppTail Page:** [https://apptail.io/app/half-marathon-trainer-21k-run-xmc/united-states](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/united-states) ## Half Marathon Trainer Description The Ultimate 1/2 Marathon training app: 21K Runner is the easiest and most successful program for training for your first 21K. 21K Runner improves your fitness with an awesome training program. You start with a 10K fitness level, and the running gradually increases to a full 21K. Just plug in your headphones, play your favorites music, and the app will guide you. Motivation is the key factor in long distance running, and 21K Runner keeps you motivated - it's the true magic of this app, and it's built into every screen. The running plan is achievable and enjoyable, the app keeps a log of your runs & achievements and awards you with badges, and you can also share your progress with your friends on Facebook, Twitter, or by mail. It even includes the motivational quotes to keep your spirit in tune with your body. This app keeps people running. Built by pros and with proven success, this is the ULTIMATE half marathon training app. ----- FEATURE LIST ----- 12 WEEK RUNNING PROGRAM ● from 10K to 21K ● alternating walks and runs ● starts easy and slowly increases the runs ● audio coach tells you when to walk / run ● works with the screen locked (dark) ● repeat workouts whenever you want ● audio Coach can be voice, beeps, or both ● continue 21K running forever MUSIC / INDOOR-OUTDOOR ● listen to your music during exercises ● audio coach gently blends in when needed ● on-screen controls for Apple music app ● great with all music apps ● works outdoors / indoors / treadmill GPS & APPLE HEALTH ● Built in GPS & Distance Tracking, also when app is in background ● Integrated with Apple Health for Calorie calculation & saving workouts WINS / ACHIEVEMENTS ● each completed run is a Win ● receive Badges for your progress ● app tracks & logs each time you do a new run ● wins screen shows your history & Badges ● share Wins / Badges with your friends on Facebook, Twitter, email AND THERE'S MORE ● guidance & information for beginners. ● extensive answers to all common questions. ● links to stretching & warmup videos. ● works outdoors / indoors / treadmill ● works perfectly even if your device is locked ● works perfectly also in background ● male & female audio coaches ● flips upside down to fit any armband ● and there is more... ====== NEWS COVERAGE & REVIEWS ====== Our apps have been featured on CNN, Fox, USA Today, Times, Fitness Channel, AppAdvice, AppCraver, Best10Apps, Appolicious, AppOfTheDay, Apple's "New & Noteworthy" MakeUseOf, the iPhone App Review, Remix Your Health, AppShopper, Daily Motion, and so many others… "If you thought that you could never run - get ready for a BIG surprise. With this app - you will run" "Its a great App, I was hooked by the second run, and it kept me running" "One of the best iPhone running apps I’ve tested."  "This application is a must-have fitness trainer for anyone trying to catch the running bug or getting ready for a major running event" ● Privacy Policy & Terms Of Use: ● In App Purchases: This App Offers In App Purchases Titled "Premium Upgrade" • Premium Upgrade: includes full training plans and exercises, as well as plan updates • The upgrade is either a 6 Month subscription, or a lifetime one time upgrade. • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable ----- CONTACT US ----- Dear customers, we are here for you! support@fitness22.com ## Half Marathon Trainer Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple128/v4/fb/3c/9f/fb3c9f00-a87f-4938-1848-2f65837ef81e/mzl.twbakmkt.jpg/1536x2048.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/39/81/de/3981de0b-58b5-45b3-501b-c8e70f804a81/mzl.yfbvfjjy.jpg/1536x2048.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple128/v4/9a/99/35/9a9935a1-aa93-b12a-89e9-16fc7ca850a6/mzl.cqyqqqpp.jpg/1536x2048.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple128/v4/e3/7a/26/e37a26f9-42d0-1cc0-c88e-96a4b229aecd/mzl.fknwfrdw.jpg/1536x2048.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/03/cb/8d/03cb8d81-2bd3-44f9-8432-4ff0551ac430/mzl.ndrmlexi.jpg/1536x2048.png) ## Half Marathon Trainer Rating Breakdown in United States - 5 stars: 1,505 (90%) - 4 stars: 84 (5%) - 3 stars: 32 (2%) - 2 stars: 21 (1%) - 1 stars: 32 (2%) ## Half Marathon Trainer Reviews in United States ### *---- "Not Good" The app has several glitches. Sometimes it stops working, stops tracking, restarts run, and doesn’t save a run. It can be very frustrating and I’ve given up on it. I’d say steer clear and save yourself some frustration. -- DocJuarez805, 2025-06-19 ### ***-- "Needs Apple Watch companion app" Would be perfect if it also had an Apple Watch companion app like the 5 and 10K apps do. -- Gerssssssssss, 2024-12-28 ### ***-- "This App Saved My Life" I just wish it would save all my runs! -- Shaq10k, 2024-12-10 ### **--- "It’s not nearly as good as the 10K" Wish it worked as well as the 10K, should have checked to see its last update before purchasing. Loved the 10K, this one is like a wish version of it. -- Ccc1623, 2024-06-22 ### *---- "Terrible" It won’t let me cancel -- carrieddog, 2024-05-25 ### ****- "Good for training" I like this app for the training recommendations and cadence of lung runs vs tempo runs. I docked a star as it doesn’t allow you to log partial workouts. If you don’t complete the entire time then it won’t record the run. -- JT Hollinberrys, 2024-04-12 ### **--- "Not Fitness22 5k or 10K trainer" I completed the Fitness22 5k and 10K trainers and those two apps were identical as far as I could tell (distances notwithstanding). This 21k trainer app not the same as those 2 apps. The audio sounds different (less crisp, I would say possibly even distorted), the cues options are different (no options for every 5 min. marks), and it doesn’t work on silent mode with your phone as far as I can tell. This app also recommends running-off days to do strength training and gives a couple of examples for workouts and if you have certain other apps of theirs it might sync with it (I don’t have those apps so I can’t confirm). If this were the 21k version of the 5/10k trainer apps, in my opinion it would be 5-stars. I haven’t completed this program yet but this far I’m not impressed. Will I continue with the app? Probably. -- Austinnadz, 2024-01-10 ### **--- "Good app but…." I’ve used the 5k and 10K and they were great but they haven’t synced this one with the Apple Watch so you have to carry your phone with you to run which doesn’t work on these longer distances as I’m carrying water etc. and I don’t do a big phone like this with an arm band. They would be 5 stars if you could use your watch. Same as the 10K pacer -- GRIF420, 2023-10-19 ### **--- "Audible cues randomly work" Unlike previous versions of different distance trainers from this developer the audible cues in this version only work randomly. Unfortunately you have to carry your phone in your hand and constantly watch the timer. -- NickH724, 2023-09-13 ### *---- "Does work with Apple Watch" The app is not compatible with Apple Watch and is doesn’t consistently save workouts. -- reallythisnameistakenalso, 2023-08-14 [View all Half Marathon Trainer reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Half Marathon Trainer In-App Purchases | Item | Price | |------|-------| | Premium Subscription | $7.99 | | Lifetime Premium | $14.99 | ## Half Marathon Trainer Discovered Keywords - gps - health and fitness - half marathon - s health - marathon training - runner's world - half marathon trainer - half marathon training - 1 2 marathon - 13 1 ## Apps Similar to Half Marathon Trainer - [Hardloop app - Run Trainer](https://apptail.io/app/hardloop-app-run-trainer-TT/united-states) - [10K Trainer by C25K®](https://apptail.io/app/10k-trainer-by-c25k-Ogc/united-states) - [Half Marathon 13.1 Trainer](https://apptail.io/app/half-marathon-131-trainer-wic/united-states) - 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[Netherlands](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/netherlands) - [New Zealand](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/new-zealand) - [Mexico](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/mexico) - [Germany](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/germany) - [Denmark](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/denmark) - [Thailand](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/thailand) - [Switzerland](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/switzerland) - [South Africa](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/south-africa) - [Norway](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/norway) - [Italy](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/italy) - [Brazil](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/brazil) - [Sweden](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/sweden) - [Spain](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/spain) - 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[Hungary](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/hungary) - [Indonesia](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/indonesia) - [Singapore](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/singapore) - [Poland](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/poland) - [Malaysia](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/malaysia) - [Colombia](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/colombia) - [Ukraine](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/ukraine) - [Portugal](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/portugal) - [Ecuador](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/ecuador) - [Argentina](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/argentina) - [Estonia](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/estonia) - [Slovakia](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/slovakia) - [South Korea](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/south-korea) - 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[Nigeria](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/nigeria) - [Jamaica](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/jamaica) - [Croatia](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/croatia) - [Nepal](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/nepal) - [Honduras](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/honduras) - [Armenia](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/armenia) - [Ghana](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/ghana) - [Grenada](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/grenada) - [Egypt](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/egypt) - [Pakistan](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/pakistan) - [Algeria](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/algeria) - [Belize](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/belize) - [Qatar](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/qatar) - [Belarus](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/belarus) - [Sri Lanka](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/sri-lanka) - [Lithuania](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/lithuania) - [Luxembourg](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/luxembourg) - [Madagascar](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/madagascar) - [Uzbekistan](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/uzbekistan) - [Brunei](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/brunei) - [Bermuda](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/bermuda) - [Bahrain](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/bahrain) - [Suriname](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/suriname) - [Bulgaria](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/bulgaria) - [Tunisia](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/tunisia) - [Kenya](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/kenya) - [Taiwan](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/taiwan) - [Cayman Islands](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/cayman-islands) - [Azerbaijan](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/azerbaijan) - [Lebanon](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/lebanon) - [Botswana](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/botswana) - [Venezuela](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/venezuela) - [Barbados](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/barbados) - [Senegal](https://apptail.io/app/half-marathon-trainer-21k-run-xmc/senegal) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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