Best Half Marathon Trainer Apps

242+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated September 2026

From beginner-friendly picks to power-user tools, our half marathon trainer list covers 242+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Half Marathon Trainer Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Half Marathon 13.1 TrainerHalf Marathon 13.1 TrainerFree4.7★ (5.6K)YesYesSep 2026
2Half Marathon Trainer: 21K RunHalf Marathon Trainer: 21K RunFree4.8★ (1.7K)NoYesSep 2026
3Runna: Running Plans & CoachRunna: Running Plans & CoachFree4.9★ (34K)NoYesSep 2026
4Nike Run Club: Running CoachNike Run Club: Running CoachFree4.8★ (418K)YesNoSep 2026
5Half Marathon Training - 21k / 13.1 MileHalf Marathon Training - 21k / 13.1 MileFree2.1★ (17)NoYesJul 2026
6Run Half MarathonRun Half MarathonFree4.2★ (119)YesYesSep 2026
7Half Marathon- 21K Run AppHalf Marathon- 21K Run AppFree4.2★ (254)NoYesSep 2026
8Running Walking Tracker GoalsRunning Walking Tracker GoalsFree4.8★ (107K)NoYesSep 2026

Top Picks for Half Marathon Trainer

Half Marathon 13.1 Trainer#1

Half Marathon 13.1 Trainer by Zen Labs

21K Run Walk Training by C25K®
Editor's Choice
💪 Health & Fitness
4.7😊(5.6K 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

This app guides beginners through a 14-week program to train for a half marathon using a run-walk method. It offers audio coaching, progress tracking, and community support to help users complete their first 13.1-mile race.

What We Love

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

Room to Improve

  • 🐛 Occasional syncing and tracking issues
  • 🔋 Drains battery life
  • 💰 Subscription model change frustrates some users
  • 💰 Paid app now requires subscription for full access
Half Marathon Trainer: 21K Run#2

Half Marathon Trainer: 21K Run by FITNESS22 LTD

Half marathon training 13.1 mi
Strong Contender
💪 Health & Fitness
4.8😐(1.7K 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

This app provides a structured 12-week training program designed to help users progress from a 10K fitness level to completing a half marathon (21K). It features an audio coach for guidance, motivational elements, and progress tracking with achievements.

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
  • 👍 Works well with music playback

Room to Improve

  • 🐛 Inconsistent audio prompts and notifications
  • 🐛 Frequent issues with saving/tracking runs
  • 🐛 Glitches and crashes
  • 🔒 Lack of Apple Watch integration
  • 👎 Less features and guidance compared to 5K/10K apps
Runna: Running Plans & Coach#3

Runna: Running Plans & Coach by Strava, Inc.

5k to Marathon Training
Worth Considering
💪 Health & Fitness
4.9😊(34K ratings)
FreeIn-App Purchases
#16in 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

This app provides tailored running training plans designed by world-class coaches for all levels, from beginners to marathoners. It offers personalized programs, run tracking, strength training, and a supportive community.

What We Love

  • 🚀 Excellent training plans
  • 👍 Personalized and customizable
  • 👍 Variety of workouts
  • 👍 Seamless integration with fitness trackers
  • 👍 Helpful audio cues during runs
  • 👍 Detailed performance tracking
  • 👍 Structured approach to running and strength training
  • 👍 Responsive and supportive customer service

Room to Improve

  • 🐛 Occasional syncing issues with Apple Watch
  • 🐛 Inaccurate pace tracking on treadmill
  • 🔋 Expensive subscription cost
  • 🔒 Lack of flexibility to modify workouts

More Half Marathon Trainer apps to explore

FAQ about Half Marathon Trainer

What are the best half marathon trainer apps for iPhone?
Half Marathon 13.1 Trainer tops our half marathon trainer apps ranking as of September 2026, with a 4.7-star average from 5.6K App Store ratings, and it's free to download.
Yes — 20 of the top half marathon trainer apps we rank are free to download, including Half Marathon 13.1 Trainer and Half Marathon Trainer: 21K Run.
Half Marathon 13.1 Trainer shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 242+ half marathon trainer apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides a structured 14-week training program designed to help beginners complete a half marathon (13.1 miles or 21k). It utilizes a proven run-walk ratio to make training less grueling and reduce the risk of injury.
The run-walk method involves alternating between periods of running and walking during your training sessions and the race itself. This approach helps manage fatigue, conserve energy, and build confidence for longer distances.

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