Half Marathon Trainer: 21K Run App Reviews

Great app to train for your first 1/2 marathon.

Used this to do 5k love the 21K already

I definitely recommend it!

Ive been training for a half marathon for awhile and used the app quite a few times. Probably the best feature to me is that it is a program already built in that is very easy to follow along. Bad part? Here in the winter Ive been running indoors on a track and it couldnt be any worse as far as accuracy on distance and times sadly. I run with a fitbit as well so I know how many miles Ive actually ran, also can tell obviously by how many laps Ive ran, but it would be great to be able to count on just one app for all of my running needs. When I say inaccurate I mean, I actually ran 5 miles but its saying Ive run 3 in the app, maybe it is just a poor connection and it cannot register the GPS signal? But Ive tried multiple indoor tracks and all have had the same problem. Now, that said, when the spring comes around and Im running outside, Im sure it will be better.

I am well into this program but not yet done. I began with their 5K and 10K apps. Now I am moving up to 21. This has a great interface and is easy to use. More than that its running program is well planned. I have already registered for my first half marathon. I am confident that I will be ready to go. This is a great app. Get it and get going! Highly recommended.

Easy to follow.

Would rather it count km than time but good guideline when starting a new training routine

You make a great 5 and 10k app and I was hoping for a half marathon app and its great as usual. Thank you for realizing that $10 was way overpriced and lowering the price

WORST app ever. Lacks so much I dont even know where to start! DO NOT BUY! No GPS. Does not offer anywhere near enough info. You can just search the Internet prepare for half marathon and get a better training schedule for FREE. DONT BUY!

Eh its alright I guess, nothing fancy. Follow the steps and it will get you there. I dont need a gps or flashing lights, just need a schedule. Run, get out there and do it, follow the plan as it is laid out and reach your goal.

Wish it counted km as well as time, but good app and gets you running.

Started from 0. Worked my way up from 0 to 5 to 10 to 21. Just using this. I did it. It doesnt have GPS. But any GPS app works in the background so put those together and you dont need anything else.

This app is very basic, does nothing more than time your runs...for $6, it not worth it.

This is an app that should definitely be advertised as ipod or iphone ONLY. It is designed to track your workout time so obviously not compatible with the size of your ipad even if its the mini. I feel I wasted my money

This app is really more about the training program than about the features, which means it is very simple to use and it keeps me on track. Whats missing, though, is an ability to input speed or distance. This means that its assuming I run faster than I do, and therefore not actually getting me to the intended 21km in 126min.

Good training schedule... But I wish there was a little more "coaching". For example, it would be good if the shorter runs had time intervals in them marked with a bell... In order do some speed interval training. It would also be great if there was an option to hear where we are at during the long runs (ex: an indication of our time every 20 minutes...)

Have not had any problems with this. It fits what it says, but best of all it keeps me on track and motivated for my next run.

It does exactly what says it will do, which is what you want when purchasing apps. This will guide you into a half marathon over 12 weeks, building your strength and pace during three mid week runs and increasing your distance/endurance with a weekend long run. Nothing fancy, a bit pricey but all in all, very effective.

I used the 10k one and now this one! Love them... One of the best running apps

Awesome app! The cues are clear and the controls are easy to use. I recommend it.