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Show HN: A New Flutter App for Mountain Biking

6 points by rlrhaeck ↗ HN
I have been working on a new mountain biking app for the last year called Hangtime. It is a free ride computer app that uses a smartphone's GPS, accelerometer, gyroscope, and altimeter to track a mountain bike ride. After recording a ride, the user can go back and see their performance in turns, jumps, climbs, etc. Below is a video that shows off some of the app's features.

https://youtu.be/TXiwzf-UJhQ

I wasn't sure I could get the performance required from Flutter/Dart vs. native as a one hour ride generates well over a million data points from all of the sensor data. However, performance has been more than adequate and the single code base has streamlined development.

If you want to give it a try, below are links to the app stores.

https://play.google.com/store/apps/details?id=com.rlued.hangtime

https://apps.apple.com/us/app/mtb-hangtime/id1516615267

5 comments

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rlrhaeck
By the way, there is a "demo ride" available with the app download if you want to try the app but don't want to record your own ride.
dschep
Do I need to mount my phone on my bars to use this?
rlrhaeck
Yes. I have actually found that the best mounting location is on the top tube using something like the wrist mount in the link below. This kind of mount is very secure, keeps the phone in a safe location and out of the way while still visible during the ride.

https://amazon.com/gp/product/B0711MB5NW/

dschep
Cool, I'll try this out tomorrow with an old phone and some voile straps.
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