I want to build an app that calculates accurate Distance travelled by iPhone (not long distance) using Gyro+Accelerometer. No need for GPS here.
How should I approach this problem?
7 Answers
Navisens.
https://navisens.com/#how-work
Here the claim - Navisens patent-pending technology processes accelerometer and gyroscope data in a unique way to locate your phone.
Tried out the demo application, which works mostly in mapping the movements with out Location Services or WiFi once the inital location & direction are set.
iOS SDK - https://github.com/navisens/iOS-SDK
Android SDK - https://github.com/navisens/Android-SDK
Note: This is not open source
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