What's New

- iOS 10 Adaptations

App Description

The Ultimate Marathon training app, from the makers of the award winning apps 5K & 10K Runner.

42K Runner is the easiest and most successful program in training 21K runners for their first full marathon. If you can do 21K, with this app you will get to 42K.

IMPORTANT: This app is only for those that can already run 21K

42K Runner improves your fitness with an awesome training program. You start with a 21K fitness level, and the running gradually increases to a full 42K. 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 42K 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 also awards you with badges. You can easily share all your progress with friends on Facebook, Twitter, or by mail. It even includes 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 marathon training app.

----- FEATURE LIST -----

● from 21K to 42K
● alternating walks, runs and faster 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

● 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 with any GPS app (like Nike+ GPS)
● works outdoors / indoors / treadmill

NOTE: Continued use of GPS running in the background can dramatically decrease battery life.

● 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, or by email

● guidance & information
● extensive answers to common questions
● links to stretching & warmup videos
● works outdoors / indoors / treadmill
● works perfectly even when your device is locked
● works perfectly in the background
● male & female audio coaches
● flips upside down to fit any armband
● and there is more...

Supported Devices:
● iPhone & iPod touch
● iPad - use on a treadmill


5K / 10K Runner 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"

"If you want to start running and to keep running - this app will do it for you"

"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"

"This exercise tracking app will help you achieve that coveted 5K distance"

----- CONTACT US -----

Dear customers, we are here for you!
[email protected]

iPhone Screenshots

(click to enlarge)

Marathon training, 42K Runner: 26.2 mile run screenshot 1 Marathon training, 42K Runner: 26.2 mile run screenshot 2 Marathon training, 42K Runner: 26.2 mile run screenshot 3 Marathon training, 42K Runner: 26.2 mile run screenshot 4 Marathon training, 42K Runner: 26.2 mile run screenshot 5

App Changes

  • July 07, 2015 Initial release
  • July 18, 2015 New version 6.2
  • July 22, 2015 New version 6.21
  • October 01, 2015 New version 6.30
  • November 08, 2016 New version 7.3