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Best Half Marathon Trainer Apps

183+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated May 2026

From beginner-friendly picks to power-user tools, our half marathon trainer list covers 183+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Half Marathon Trainer

Half Marathon 13.1 Trainer#1

Half Marathon 13.1 Trainer by Zen Labs LLC (CA)

21K Run Walk Training by C25K®
Editor's Choice
💪 Health & Fitness
4.6😊(122 ratings)
FreeAdsIn-App Purchases
Half Marathon 13.1 Trainer screenshot 1
Half Marathon 13.1 Trainer screenshot 2
Half Marathon 13.1 Trainer screenshot 3
Half Marathon 13.1 Trainer screenshot 4
Half Marathon 13.1 Trainer screenshot 5
Half Marathon 13.1 Trainer screenshot 6

Train for a half marathon with the official training app that partners with FITBIT and SAMSUNG smart watches. Featured in top publications, it offers a comprehensive program for running and walking. Get started on your 21K journey today!

What We Love

  • 👍 Easy to use
  • 👍 Helpful for beginners
  • 👍 Great for training and motivation
  • 👍 Integrates well with Apple Watch and Fitness

Room to Improve

  • 🐛 Occasional syncing and tracking issues
  • 🔋 Drains battery life
  • 💰 Subscription model change frustrates some users
Runna: Running Plans & Coach#2

Runna: Running Plans & Coach by Strava Inc.

5k to Marathon Training
Strong Contender
💪 Health & Fitness
4.9😊(31K ratings)
FreeAdsIn-App Purchases
#9in Health & Fitness
Runna: Running Plans & Coach screenshot 1
Runna: Running Plans & Coach screenshot 2
Runna: Running Plans & Coach screenshot 3
Runna: Running Plans & Coach screenshot 4
Runna: Running Plans & Coach screenshot 5
Runna: Running Plans & Coach screenshot 6

Embark on a personalized running journey with our comprehensive training app for 5k, 10k, marathons, and ultra marathons. Get custom training plans, track your runs, access exclusive perks, and join a vibrant running community. Start your running transformation today!

What We Love

  • 🚀 Excellent training plans
  • 👍 Personalized and customizable
  • 👍 Variety of workouts
  • 👍 Seamless integration with fitness trackers

Room to Improve

  • 🐛 Occasional syncing issues with Apple Watch
  • 🐛 Inaccurate pace tracking on treadmill
  • 🔋 Expensive subscription cost
Half Marathon Trainer: 21K Run#3

Half Marathon Trainer: 21K Run by FITNESS22 LTD

Half marathon training 13.1 mi
Worth Considering
💪 Health & Fitness
4.8😐(1.6K ratings)
FreeIn-App Purchases
Half Marathon Trainer: 21K Run screenshot 1
Half Marathon Trainer: 21K Run screenshot 2
Half Marathon Trainer: 21K Run screenshot 3
Half Marathon Trainer: 21K Run screenshot 4
Half Marathon Trainer: 21K Run screenshot 5

Train for your first 21K with the ultimate Half Marathon Trainer app. Get guided training from 10K to 21K, stay motivated with a tailored program, and track your progress seamlessly. Join the run today!

What We Love

  • 🚀 Easy to follow training plan
  • 👍 Effective for building up to half marathon
  • 👍 Variety of workouts (running, intervals, strength)
  • 👍 Motivating and keeps user on track

Room to Improve

  • 🐛 Inconsistent audio prompts and notifications
  • 🐛 Frequent issues with saving/tracking runs
  • 🐛 Glitches and crashes

More Half Marathon Trainer apps to explore

4
Nike Run Club: Cardio Exercise
Nike Run Club: Cardio Exercise
Nike Run Club: Cardio Exercise
Workout App & Distance Tracker
Free

Get personalized coaching for your runs with the latest workout app, featuring tailored plans and real-time tracking. Maximize your fitness potential and achieve your running goals with ease. Ready to step up your game?

💪 Health & Fitness
(46K)
5
Run With Hal
Run With Hal
Run With Hal
Coach-Led Run Plans
Free

Get personalized training plans for marathons and running workouts with adaptive schedules based on your fitness level and goals. Access detailed daily workouts, training guidance, and insights to help you achieve your running goals. Start your journey to becoming a better runner today!

💪 Health & Fitness
(2.8K)
6
Map My Run GPS Running Tracker
Map My Run GPS Running Tracker
Map My Run GPS Running Tracker
5K 10K, Half Marathon Training
Free

Track your runs, set goals, and monitor progress with the ultimate GPS running app by Under Armour. Join a community of runners, track routes, and challenge yourself to improve your performance. Start achieving your fitness goals today!

💪 Health & Fitness
(743K)
7
Half Marathon- 21K Run App
Half Marathon- 21K Run App
Half Marathon- 21K Run App
Couch to half marathon- 21K
Free

Train for a 21K run with our comprehensive half marathon training app. Get a detailed 12-week running program, motivational audio coaching, and an integrated music player to help you achieve your running goals. Start your journey today!

💪 Health & Fitness
(254)
8
Strava: Run, Bike, Walk
Strava: Run, Bike, Walk
Strava: Run, Bike, Walk
Suivez vos activités sportives
Free

Track your runs, bike rides, and hikes with this app that offers GPS tracking, performance analytics, and community features to connect with other fitness enthusiasts. Join today to stay motivated and achieve your fitness goals!

💪 Health & Fitness
(361K)
9
Running Walking Tracker Goals
Running Walking Tracker Goals
Running Walking Tracker Goals
Run, Walk & Jog Mile Distance
Free

Track your running and walking activities, set goals, and monitor your progress with this app designed to help you stay motivated and improve your fitness levels.

💪 Health & Fitness
(102K)
10
Run Half Marathon
Run Half Marathon
Run Half Marathon
5K, 10K & Marathon Runner Plan
Free

Track and train for various running distances like 5K, 10K, half marathon, and full marathon with detailed training plans, progress tracking, and tips. Ready to take your running to the next level? Start training today!

💪 Health & Fitness
(117)
11
10K Runner, Couch to 10K Run
10K Runner, Couch to 10K Run
10K Runner, Couch to 10K Run
10K Trainer: 0 to 5K to 10K
Free

Transform from sedentary to 10K runner with a renowned training program. Over 8.6 million success stories back this award-winning app, making your 10K goal achievable too. Start your journey today!

💪 Health & Fitness
(38K)
12
5K Runner: couch potato to 5K
5K Runner: couch potato to 5K
5K Runner: couch potato to 5K
Couch potato to 5K: Run 5K
Free

Transform from a couch potato to a 5K runner in just 8 weeks with the official app that has helped 4.2 million people shed weight and get fit. Featured in top media outlets, start your journey today!

💪 Health & Fitness
(117K)
13
Marathon 26.2 Trainer by C25K®
Marathon 26.2 Trainer by C25K®
Marathon 26.2 Trainer by C25K®
42K Run Walk Training
Free

Train for a marathon with the official trainer app by C25K® partners. Featured on major platforms, this app helps you go from couch to 42K, with support for FITBIT and SAMSUNG smart watches. Start your training today!

💪 Health & Fitness
(48)
14
ASICS Runkeeper—Run Tracker
ASICS Runkeeper—Run Tracker
ASICS Runkeeper—Run Tracker
Running App and Training Plans
Free

Track your runs, set goals, and stay motivated with this comprehensive running app. Enjoy guided workouts, personalized training plans, in-app challenges, and seamless integration with various devices and apps. Ready to reach your peak performance? Join now and start running towards your fitness goals!

💪 Health & Fitness
(374K)
15
TrainingPeaks
TrainingPeaks
TrainingPeaks
Triathlon, Cycling, Running
Free

Achieve your fitness goals with our training app designed for endurance athletes. Easily track and sync your workouts, set personalized goals, and analyze your performance data to reach your peak potential. Subscribe now for premium features to unlock even more training benefits.

💪 Health & Fitness
(2.1K)
16
Marathon Training: 42K Runner
Marathon Training: 42K Runner
Marathon Training: 42K Runner
Marathon trainer: run 26.2 mi
Free
💪 Health & Fitness
(237)
17
adidas Running: Run tracker
adidas Running: Run tracker
adidas Running: Run tracker
From Walk to Marathon training
Free

Track your daily walks and runs, set personal goals, monitor your progress, and stay motivated with this app. Join challenges, connect with friends, and improve your overall fitness level. Start your journey to a healthier lifestyle today!

💪 Health & Fitness
(4.4K)
18
Half Marathon Training - 21k / 13.1 Mile
Half Marathon Training - 21k / 13.1 Mile
Half Marathon Training - 21k / 13.1 Mile
Train for your half marathon!
Free

Train for a half marathon with a personalized 20-week program that gradually increases your stamina and endurance through interval training. This app guides you through runs with audio cues, tracks your progress, and syncs with your music and health apps to help you reach your goal.

💪 Health & Fitness
(17)
19
MOTTIV: Run & Triathlon Plans
MOTTIV: Run & Triathlon Plans
MOTTIV: Run & Triathlon Plans
Half, Marathon, 70.3, Ironman
Free

MOTTIV: Run is a cutting-edge fitness tracking app that utilizes GPS technology to monitor your runs, providing real-time feedback on distance, pace, and calories burned. With customizable workout plans and challenges, MOTTIV helps you stay motivated and achieve your fitness goals. Start tracking your runs today to elevate your fitness journey!

💪 Health & Fitness
(68)
20
Run Trainer - Running Tracker
Run Trainer - Running Tracker
Run Trainer - Running Tracker
Couch to 5K,10K, Half Marathon
Free

Start your running journey with a professional coach in your pocket! From Couch to 5K to half marathons, Run Trainer has you covered with personalized running plans and live data tracking. Try it out for free and experience a seamless running experience unlike any other.

💪 Health & Fitness
(197)

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