TIER - Unlock Your City

3.3
83K reviews
10M+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image

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
Aug 7, 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

3.3
82.4K reviews
Abbey H
June 27, 2022
Terrible! Do not recommend. My ride should've been ~20 min. About 5 min in, it quit working. Idk why. There's no way to see your trip before going, so if I went through a restricted area,I had no way of knowing that would've been a problem before starting. Also, I wasn't even "rolling" the scooter, but actively had to push against resistance in the tires to make it move. For 45 minutes until I got to a parking spot. I don't even have a way to request a refund because their chat is broken.
4 people found this review helpful
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Charlotte Funnell
May 28, 2022
I used the app in Vienna. Everything was fine- I bought a pass, I used it once. But then the map in the app malfunctioned. It shows only a blue screen, and doesn't show any scooter locations. I cleared cache, data, uninstalled/reinstalled... nothing works. So I can't use the remainder of my pass. Also, btw, these scooters are way heavier than any of their competitors. If you want to lift it from the street to the sidewalk, forget it.
46 people found this review helpful
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Zach Damasco
June 28, 2023
Updating my review: Payments no longer work. Tried Multiple cards from different banks AND Google pay. Nothing works anymore and now I can't rent a scooter at all Good parking, ride, and pricing, but the way it calculates minutes is terrible. It will always round up even if you're 1 second over. I literally had a ride that was 8:01 and it charged me for 9 minutes.
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!