Best Half Marathon Running Apps

235+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated October 2026

Whether you're new to half marathon running or looking for an upgrade, our curated collection of 235+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Half Marathon Running Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Half Marathon Training - 21k / 13.1 MileHalf Marathon Training - 21k / 13.1 MileFree2.1★ (17)NoYesOct 2026
2Half Marathon 13.1 TrainerHalf Marathon 13.1 TrainerFree4.7★ (5.6K)YesYesOct 2026
3Half Marathon Trainer: 21K RunHalf Marathon Trainer: 21K RunFree4.8★ (1.7K)NoYesOct 2026
4Run Half MarathonRun Half MarathonFree4.2★ (119)YesYesOct 2026
5Treadly: Running CoachTreadly: Running CoachFree5.0★ (13)NoYesOct 2026
6Miles: AI Running CoachMiles: AI Running CoachFree5.0★ (5)NoYesOct 2026
7Marathon Runner: M,HM,10K,5KMarathon Runner: M,HM,10K,5KFree3.4★ (48)NoYesOct 2026
8Half Marathon- 21K Run AppHalf Marathon- 21K Run AppFree4.2★ (254)NoYesOct 2026

Top Picks for Half Marathon Running

Half Marathon 13.1 Trainer#2

Half Marathon 13.1 Trainer by Zen Labs

21K Run Walk Training by C25K®
Strong Contender
💪 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
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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#3

Half Marathon Trainer: 21K Run by FITNESS22 LTD

Half marathon training 13.1 mi
Worth Considering
💪 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

More Half Marathon Running apps to explore

FAQ about Half Marathon Running

What are the best half marathon running apps for iPhone?
Half Marathon Training - 21k / 13.1 Mile tops our half marathon running apps ranking as of October 2026, with a 2.1-star average from 17 App Store ratings, and it's free to download.
Yes — 20 of the top half marathon running apps we rank are free to download, including Half Marathon Training - 21k / 13.1 Mile and Half Marathon 13.1 Trainer.
Half Marathon Training - 21k / 13.1 Mile has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 235+ half marathon running apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.