iPhone Screenshots


“SOUL FIT provides runners with real-time voice coaching function to maximize their running efficiency and minimize the risk of injury. The voice coaching function is based on the biomechanics data collected instantly from each run. And the data does not only include step counts, distance, speed and time, but also every aspect of your running motion with SOUL FIT and compatible earphones from SOUL.

Pair your compatible SOUL earphones with Beflex BiomechEngine™ to your smartphone to start tracking your run. [1]

SOUL FIT delivers professional features to runners from different levels:

- Real-time voice coaching function to improve your running efficiency and minimize injury risk, based on various GAIT Analysis parameters (Cadence, Head angle, vertical oscillation, shock, step width and symmetry)
- Track and review your running activity (Distance, pace, speed, time, calories, step count, cadence and altitude)
- Analyze and review your running form (Head angle, vertical oscillation, flight-stance ratio, step width/ length)
- Analyze and review your injury risk (Shock, maximum force, leg stiffness, symmetry, consistency)
- Share your workout data with Apple Health app.

SOUL FIT will train you to be your best running coach!

[1] Compatible devices with SOUL FIT can be viewed in https://www.soulelectronics.com/
Disclaimer: SOUL earphone with Beflex BiomechEngine™ is required in order to use SOUL FIT for tracking your run.”

What’s New

Version 2.7.0

UI updates and Minor bug fixes.

Ratings and Reviews

3.8 out of 5
5 Ratings

5 Ratings

RyanNystrom ,

Great tech, but app needs love

I got the Run Free as a gift for the holidays and it’s pretty special. Took it on my first run the other day and found the audio quality great, the coach helpful (and not too annoying), and they were comfortable too.

The app however is pretty rough.

- No integration with HealthKit. I want to record my workouts in one place.
- The UI is really bizarre. Would be 10x easier to use if it just followed Apple’s design guides.
- Crashed on me at least once but only while browsing data. Makes me nervous about crashing during a workout though!

That said, the data (real-time and post analysis) is just so cool. Really impressed, and modernizing the app a bit would make this a must-have!

Developer Response ,

Hi RyanNystrom, Thanks for your detailed review of our app!

We’ve received several feedbacks from our users and updated our app since your last review. The UI of the app has been updated and you can now connect SOUL FIT exercise data to Strava and Apple Health. Please give our app another try and feel free to update your review or give us more comments on how we can create a better running experience for you.

If you’d like more assistance with app issues, you can also let us know at support@beflex.co

Thank you.

M ONeal ,

App is extremely buggy, doesn’t sync with device

I’ve had these headphones for over a year and have never been able to update the firmware via the app (which is the only way to do so) because the app disconnects from the headphones before I am able to. I’ve never been able to use the workout coaching because I’ve not been able to calibrate the headphones as well. Went through their customer service on an email chain for several weeks and the issue was never resolved. The headphones play music from my phone but that was not the sole purpose of them and I am extremely disappointed. Do not recommend


Soul Electronics Limited
144.5 MB

Requires iOS 10.0 or later. Compatible with iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE (1st generation), iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPad Air, iPad Air Wi‑Fi + Cellular, iPad mini 2, iPad mini 2 Wi‑Fi + Cellular, iPad Air 2, iPad Air 2 Wi‑Fi + Cellular, iPad mini 3, iPad mini 3 Wi‑Fi + Cellular, iPad mini 4, iPad mini 4 Wi‑Fi + Cellular, iPad Pro (12.9‑inch), iPad Pro (12.9‑inch) Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7‑inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5‑inch) Wi‑Fi + Cellular, iPad (6th generation), iPad Wi‑Fi + Cellular (6th generation), iPad Pro (11‑inch), iPad Pro (11‑inch) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (3rd generation), iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi‑Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi‑Fi + Cellular, iPad (7th generation), iPad (7th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch) (2nd generation), iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (4th generation), iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular, and iPod touch.


Chinese (Hong Kong), Dutch, French, Italian, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese

Age Rating
This app may use your location even when it isn't open, which can decrease battery life.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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