# Half Marathon- 21K Run App — Couch to half marathon- 21K > 12-week half marathon training app with audio coaching and progress tracking. (iPhone/iPad app by Rumble.) - Source: https://appshunter.io/ios/app/half-marathon-21k-run-app/id1435474702 (this page in markdown: same URL + `.md`) - Developer: [Rumble](https://appshunter.io/developer/1368434055) - Category: Health & Fitness, Lifestyle - Price: Free with in-app purchases - Rating: 4.20/5 from 254 App Store ratings · 16 written reviews indexed - Age rating: 4+ - Requires: iOS 13.4 · 65 MB - Languages: American English, Arabic, Danish, Dutch, Finnish, French (France), German (Germany), Hungarian, Indonesian, Italian and 13 more - Released: 2018-09-09 - Data updated: 2026-08-26 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/half-marathon-21k-run-app/id1435474702/reviews.md ## What is Half Marathon? Enhance your strength, endurance, and stamina, train for your 21k run with the best half marathon training app! 21K Run Trainer will help you become the runner you’ve always wanted to be! This is the easiest, most comprehensive and most successful half marathon training plan for you to train for your first 21K. DETAILED 12 WEEK RUNNING PROGRAM Our 12 week half marathon training plan will literally take you to the finish line of your first 21k run. 21K Run Trainer is a simple and powerful 1/2 marathon training app that will guide you through the whole journey with encouragement, useful tips, step- by- step interval planning, and so much more. Complete your half marathon by using the run/walk strategy and get the advice you need! MOTIVATIONAL AUDIO COACHING This half marathon training program starts off easy and slowly increases the runs. The real fascination of this 12 week half marathon training and running app is that it keeps you motivated and encouraged all the time. Keep your inner self in tune with your body by listening to audio coach guidance, read daily motivational quotes and enjoy great half marathon training plan! INTEGRATED MUSIC PLAYER Not only that you will get the motivation and information you need by using this incredible half marathon training program, but you will also be able to enjoy your favorite tracks while running and training! The running app features a built-in music player that lets you listen to your music during exercises. The audio coach gently blends in when needed, plus you get intuitive on-screen controls that make the experience even better. TRACK & SHARE YOUR PROGRESS Experience the pure enjoyment of running by having the best half marathon training app! If you need a half marathon training guide to reach your 21K goals easily, then 21K Run Trainer is exactly what you need. The app keeps track of your runs and achievements, it awards you with badges and gives you the opportunity to share your progress with your friends and family on any social media. Share your 12 weeks half marathon training log by Facebook, Twitter, or email, and don’t forget to invite your friends to join you! 21K RUN TRAINER FEATURES: - Reach your 21k run goals in 12 weeks - Follow detailed half marathon training schedule - Uses alternating walks & runs - Audio coach to guide & motivate you - Repeat workouts whenever you want - Includes a music player to listen to music while exercising - Built-in GPS & distance tracking - Receive cool badges for your progress - Tracks & logs each time you do a new run - Share achievements with friends - Fully customizable settings - Supports both phone & tablet devices - Smooth on-screen controls - Integrated health kit for a workout track - FREE to use half marathon training plan app --- How to train for a half marathon and fully enjoy it? It’s simple! Get 21K Run Trainer for FREE today and just believe in yourself! Please seek medical advice prior to commencement. We currently offer two auto-renewing subscriptions with $0.99/week billed as a yearly $49.99 without a trail. & 7-day free trial thereafter weekly $1.49 billed as a six month $37.99. By subscribing you get unlimited access and unlock all Training program, Transformation tracker, Diet recipes & 30 Day meal plan. Subscriptions are set to automatically renew within the 24-hour period prior to the subscription end date. You can cancel your subscription at any moment in your iTunes account settings but refunds will not be provided for any unused portion of the terms. App integrated with the Health kit, so you can find your activities data in the Health App. Contact our client support via rumbleent@hotmail.com Privacy Policy: http://rumbleenterprise.com/policy_runing.html and Terms of Service: http://rumbleenterprise.com/terms_of_use_running.html ## Key features - 12-week running program - Audio coach guidance - Run/walk strategy - Integrated music player - Progress tracking and sharing - Motivational quotes - GPS and distance tracking ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | 21K Run Trainer (Weekly) | $2.99 | per 7 days | | Half marathon program | $37.99 | per 6 months | | 21k Run Monthly New | $1.99 | per month | | Half Marathon Workout Plan | $29.99 | per year | | Weekly Subscription | $0.99 | per 7 days | | Weekly Subscription | $1.99 | per 7 days | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 21k Run Life Time | $39.99 | one-time | ## Recent user reviews (10 of 16) All indexed reviews: https://appshunter.io/ios/app/half-marathon-21k-run-app/id1435474702/reviews.md ### 1/5 — Broken *2025-04-02, version 1.12* Daily activity will stop if you move off app to play music or any other source. It is horrible for tracking time for the day. ### 4/5 — Phone calls *2022-04-22, version 1.8* I love the app, but I do wish that when I answered a call it wouldn’t pause. I always forget to start it back and lose time. ### 4/5 — Not so bad so far *2021-01-17, version 1.7* I just started using this app. So far so good. ### 1/5 — Definitely not for a couch potato *2020-12-06* Says couch to 21.1k but first workout is a 40 minute run. Seriously!!! ### 1/5 — Useless *2020-04-22* Rubbish app ### 1/5 — GPS NOT WORKING *2020-04-14, version 1.6* GPS not working. I purchased this app about one week ago. I am running it on iPhone 8 IOS 13.3.1. I’ve check location services and made sure the app has access to GPS twice. I’ve deleted and upload on two separate occasions. The voice cue tells me my “pace is 0.0 meters..” I have learned a great lesson with this app: “Never buy anything before trying it”. I will not be continuing my subscription with you. Unfortunately I have paid for one year. ### 1/5 — Can’t change level *2020-04-06, version 1.3* I’m a “premium” member but can’t change the level of training. I reached out to app support but haven’t heard back. I can’t use the app because I shouldn’t be training at the defaulted level. Frustrating! ### 1/5 — Does not work *2020-03-14* Expensive but wanted to motivate myself. It does not work in several ways. Music not working, distances incorrect and duplicate runs in the logs. Avoid ### 5/5 — great app! *2020-03-13, version 1.3* I like the badges and challenges. I have to admit tho, the badges are kinda ugly haha and i wish they were better looking :p. That is just being picky tho. It is a great app! Edit to update: ### 1/5 — Doesn’t track your workout *2020-01-26, version 1.3* This app does not track distance and will randomly end the workout and restart it without warning so the log has multiple workouts for the same day with different times. It also doesn’t tell you when the workout ends. This app is in serious need of major updates. I did 2 workouts with it and the same problems occurred with both. I deleted it after the second workout. ## Frequently asked questions about Half Marathon ### What is this app for? This app is designed to help you train for your first half marathon (21K) over a 12-week period. It provides a structured running program, audio coaching, and motivational support to build your strength, endurance, and stamina. ### What are the key features of the half marathon training app? Key features include a detailed 12-week training schedule, audio coaching for guidance and motivation, a run/walk strategy, an integrated music player, progress tracking with badges, and the ability to share your achievements with others. ### Is this app free to use? Yes, the app offers a free half marathon training plan. However, it does have in-app purchases, suggesting that some features or content may require payment. ### What devices does this app support? The app supports both phone and tablet devices, ensuring a smooth experience across different screen sizes. It also integrates with the Health Kit for workout tracking. ### How does the app help users complete a half marathon? The app guides users through a 12-week program that starts easy and gradually increases running intensity. It uses a run/walk strategy, provides step-by-step interval planning, and offers audio coaching and motivational tips throughout the journey. ## Version history (last 5 releases) ### 1.14.0 — 2025-12-22 Bug fixing and performance improvement ### 1.13.0 — 2025-11-29 Bug fixing and performance improvement ### 1.12 — 2025-01-17 Bug fixing and performance improvement ### 1.11 — 2024-12-28 Bug fixing and performance improvement ### 1.10 — 2022-09-08 Hey runner, It’s a big update! Fixed technical glitch happen while running & in-app purchase. Keep running. Follow us, share your experience, and let’s know what you feel about new update rumbleent@hotmail.com. ## Apps similar to Half Marathon | App | Rating | Price | Category | | --- | --- | --- | --- | | [Runna: Running Plans & Coach](https://appshunter.io/ios/app/runna-running-plans-and-coach/id1594204443) | 4.9 (33,144) | Free | Health & Fitness | | [Running Walking Tracker Goals](https://appshunter.io/ios/app/running-walking-tracker-goals/id1136617388) | 4.8 (106,131) | Free | Health & Fitness | | [Nike Run Club: Running Coach](https://appshunter.io/ios/app/nike-run-club-running-coach/id387771637) | 4.8 (417,410) | Free | Health & Fitness | | [Running Trainer: Tracker&Coach](https://appshunter.io/ios/app/running-trainer-tracker-and-coach/id1205237896) | 4.9 (113,925) | Free | Health & Fitness | | [The Run Experience](https://appshunter.io/ios/app/the-run-experience/id1189131975) | 4.8 (538) | Free | Health & Fitness | | [C25K® 5K Running Coach & Map](https://appshunter.io/ios/app/c25k-5k-running-coach-and-map/id485971733) | 4.8 (170,670) | Free | Health & Fitness | ## More apps by Rumble - [30 Day Ab Challenge App](https://appshunter.io/ios/app/30-day-ab-challenge-app/id1368434056) - [30 Day Weight Loss Challenge .](https://appshunter.io/ios/app/30-day-weight-loss-challenge/id1377026538) - [30 Day Butt Challenge Pro](https://appshunter.io/ios/app/30-day-butt-challenge-pro/id1377092487) - [Run Tracker: 5K 10K 21K & 42K](https://appshunter.io/ios/app/run-tracker-5k-10k-21k-and-42k/id1386695386) - [5k Run- Couch Potato to 5K](https://appshunter.io/ios/app/5k-run-couch-potato-to-5k/id1426240676) All apps by Rumble: https://appshunter.io/developer/1368434055 ## Related topics [hackney half](https://appshunter.io/ios/topics/hackney-half) · [half marathon running](https://appshunter.io/ios/topics/half-marathon-running) · [half marathon training plan](https://appshunter.io/ios/topics/half-marathon-training-plan) · [half marathon trainer](https://appshunter.io/ios/topics/half-marathon-trainer) · [21k half marathon run coach](https://appshunter.io/ios/topics/21k-half-marathon-run-coach) · [half marathon training app for beginners](https://appshunter.io/ios/topics/half-marathon-training-app-for-beginners) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*