
Andreas Holzapfel
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Abysmal app experience. Even more so is the support. They want me to change my system setting, so the app would use metric system? Really, it is 2025!?! The device itself has no use for my driving setting and is only drawing battery because of the extra Bluetooth connection. It was a present, but I think I have to lie about using it...
3 people found this review helpful
Thank you for your feedback. The unit system shown in the app is based on the phone’s settings and simply mirrors those. Regarding battery usage, our support team will be happy to help look into this, as it can depend on the phone model and individual settings. Feel free to reach out and we’ll be happy to help.

Trapperx89
Battery use is insane. 20 minutes of driving with the ooono app active used more battery than 3 hours of playing youtube videos with sound and full screen video. The app needs always on location. Suspicious for a driving app. Only give permission when app is in use wasn't enough. The app needs permission to send notification. Also suspicious. Why buy a codriver if the phone works on it's own? Probably Malicious software collecting data, names and locations for some countries intelligence.
1 person found this review helpful
ooono A/S
January 27, 2026
Thank you for your feedback!
I understand your confusion about the location settings. It's important to know that the location is used only to send you alerts and only when you are connected to the CO-DRIVER.
For this to work in the background, the setting must be "Always". Otherwise no alert can be sent unless the app is open.
OOONO Team

Marin
The app looks very stylish and easy to use, but I can't understand why does the American measurement system mps and yards cannot be changed to the European km/h and meters? These are the basics for European customers. Noone understands when the app shows 200 yards until the warning! OOONO - is this a bug or what? Please update.
3 people found this review helpful
ooono A/S
December 22, 2025
Thank you for your feedback. The measurement system in the app follows your phone’s language and region settings. To switch between km and miles:
Open phone Settings
Scroll down; select System
Tap on Languages & Region.
Choose English, followed by a region that uses the metric system. If you choose English, the app will display miles instead of km.