Make sure you have motion tracking turned on.
Go to your iPhone Settings > Privacy > Motion & Fitness and ensure it is turned on.
Take note that the aglet-app.com requires certain mobile phone features so as to operate.
Appropriate for iPhone® six / six Plus as well as 8 as well as 8 Furthermore / units with ios-version 11 or perhaps later mounted.
Not really compatible with fifth generation ipod itouch devices or even iPhone 6S or previously iPhone products.