The app 'Distance from Accelerometer & GPS Log' written and published by Timo Rantalainen (tjrantal at gmail dot com) does not store any information about you persistently or share any information about you other than what is shared by the admob ads and google firebase app analytics (I am unaware how much information is shared through the admob ads but clearly some, such as the Android advertising identifier', because the ads are targeted to your phone). The app uses files you have stored locally on your device and the information contained within the files remains on your device while being handled by the app.
Further information regarding Privacy Policies that apply;
https://firebase.google.com/support/privacy/
https://www.google.com/settings/u/0/ads/authenticated
http://www.google.com/policies/privacy
http://www.google.com/policies/privacy/partners