5/5 rating based on 178 reviews. Read all reviews for iSmoothRun for iPhone.
iSmoothRun is paid iOS app published by LAKE HORIZON LIMITED
Twm11
Works very well. Accurate GPS. use mostly for indoor and outdoor cycling. It has all the data I need
Chambilis
I've been using this app for years and hundreds of miles, and overall it is fantastic, with one exception: about half the time, the RunKeeper export fails due to a timeout. Which would be fine if there were a "retry" button, but re-exporting is a multi-step process and the last thing you feel like doing after a ten mile run.
bArtOne
I've used iSmoothrun for almost two years. Love it - except for today. Finished my morning run - went to sync up with Nike plus and No Data. Everything was gone. Fortunately have backed up to Nike plus. If they can't find/fix this bug - should at least have way to recover from Nike+ backup.
OneDaoist
ISR is constantly updated to use the latest sensors and iPhone/Apple watch features. With its interval planner, it is so easy to plan out your workout to the last minute. ISR's GPS tracking is also better than any other app I've tried. When on my bike, other apps have a snap to road tendency that makes my bike rides a bit wonky looking. Finally, ISR just works better with all the Bluetooth sensors and external displays (like the Wahoo RFLKT and Magellan Echo) that I use. Other apps have difficulty connecting and dropped connections that I don't find with ISR. These days almost any app can track your run/bike/hike workout, but ISR gives you fine tuned control and rock solid stability that will keep you coming back to this app.
tim05401
Update: 3ish years later, and this is still 5 stars and still the only running app I use. Best running app on the iPhone hands down - cadence coaching, user laps (!!), shoe mileage, Pebble integration (with a full-on custom Pebble app, so you can trigger laps, pause, and show multiple pages of the huge amount of info iSR knows!), weather/fastest song/more recorded each workout, ghost runs, extreme interval editing, great graphing and calendar view, smart switching betw gps and accelerometer when gps coverage drops, uploading to RunKeeper, MapMy, email, and even up/download backups via Dropbox... Awesome sauce. Bottom line: best running app on the iPhone. Period.
Jsharing
Just bought this and tried to use it for the first time. It tracked nothing on my run and said GPS was unavailable. My 5k app tracked the run just fine though. I bought this because I want to track my elevation gains. I'll keep trying and raise the stars if I can get it to function properly.
ocha-no-mizu
Works like a charm. Goes great with my Pebble as well as HRM and stride sensor. The developer is extremely good at responding to queries quickly and helpfully.