TIER - Unlock Your City

3.5
83K reviews
10M+
Downloads
Content rating
USK: All ages
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Screenshot image
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About this app

TIER is now Dott!

TIER and Dott have joined forces to offer you smoother rides, in more locations, and with even better passes.

From now on, all TIER vehicles are ready to ride on the Dott app instead. Download the Dott app today to get riding!
Updated on
Oct 6, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Financial info
This app may collect these data types
Location, Personal info and 6 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.5
82.4K reviews
Pantelis Athina
December 5, 2022
Beware: the app sometimes hangs for no reason and you can't activate a scooter. Neither by scanning, nor by entering the digits. First the support tells you to walk 20 minutes to the next one (because the one you try to scan they say is broken, I bet without even checking), and after the next one doesn't work as well, they ask you to reinstall the app. After that, it works. I wonder why this doesn't happen with other apps.
34 people found this review helpful
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Raphael Krempler
November 9, 2021
Bought the pass last week since it's the most convenient way to travel between home and work and think the scooters themselves are the better than competitors. After multiple edits I end up giving the app only 1 star. Geofencing slowing you down in the midst of traffic, regular errors when unlocking or scooters "not available" makes it frustrating to use. It's even worse when you can't log out of the scooter because the app thinks you're not on a ride. Fortunately, support gave compensation.
39 people found this review helpful
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Dott
August 26, 2021
Hello Raphael, We apologise for the inconvenience you experienced. We are happy to hear it has been sorted out. Best wishes, Your TIER team
Andi Palmer
August 2, 2023
Can't log in, when trying to paste the SMS code, the input field only accepts one number. Then when trying to delete a number it's not possible to clear the input field. Pressing back results in having to request a new SMS, after the second attempt I just get an error message that too many codes have been requested so I'm not able to log in. It's a very frustrating experience.
6 people found this review helpful
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What’s new

TIER is now Dott!

TIER and Dott have joined forces to offer you smoother rides, in more locations, and with even better passes.

From now on, all TIER vehicles are ready to ride on the Dott app instead. Download the Dott app today to get riding!