# TIER – Unlock your city — Electric Scooter & Bike Share

> Electric scooter and bike sharing service for urban mobility. (iPhone/iPad app by Tier Mobility GmbH.)

- Source: https://appshunter.io/ios/app/tier-unlock-your-city/id1436140272 (this page in markdown: same URL + `.md`)
- Developer: [Tier Mobility GmbH](https://appshunter.io/developer/1435293589)
- Category: Travel, Navigation
- Price: Free
- Rating: 4.70/5 from 3,463 App Store ratings · 309 written reviews indexed
- Age rating: 17+
- Requires: iOS 14.0 · 255 MB
- Languages: British English, Arabic, Croatian, Danish, Dutch, Finnish, French (France), German (Germany), Greek, Gujarati and 10 more
- Released: 2018-10-14
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/tier-unlock-your-city/id1436140272/reviews.md

## What is TIER?

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!
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## Key features

- Electric scooter rentals
- Electric bike rentals
- Urban mobility solutions
- Expanded service locations
- Improved ride passes

## What do users think of TIER?

Overall sentiment: negative

**Pros**

- 🚀 Fast and efficient
- 👍 Easy to use
- 💡 Innovative features
- 🔋 Charges phone while riding
- 🚲 Great way to explore the city

**Cons**

- 🐛 Frequent app crashes and connection issues
- 🔒 Unreliable payment processing
- 🚫 Restricted riding and parking zones
- 💰 Overpriced compared to competitors
- ⚠️ Dangerous speed limitations and throttling

**Commonly reported bugs**

- App unable to locate and unlock available scooters
- Inability to end ride and park scooter properly
- Inconsistent behavior when entering restricted zones

**Most requested features**

- Show available parking spots in-app
- Improve GPS accuracy and coverage
- Add option to disable speed restrictions
- Introduce monthly/yearly subscription plans

## Recent user reviews (10 of 309)

All indexed reviews: https://appshunter.io/ios/app/tier-unlock-your-city/id1436140272/reviews.md

### 1/5 — Rubbish, never works when you need it

*2025-02-28, version 4.0.145*

Bring back voi, tier scooter app is terrible and crashes all the time,  pointless and can’t be relied on for people to get home safely. Dangerous to rely on and irresponsible to put in place in Bristol over other methods of transport

### 1/5 — Terrible app

*2024-12-20, version 4.0.145*

Cannot even signup, “we’re having issues, please try again in a moment”. Tried multiple times on 2 different devices (Apple & Andro); same result. Junk

### 1/5 — Faulty scooter steering broke my iPhone

*2024-12-20, version 4.0.145*

They stalled and said their insurance would help but never did..tried to co tact Tier. Tier said Marsh & Parsons would reach out. Marsh & Parsons lied and said someone had reached out to me and couldn’t get hold of me ..
On top of that - after reporting it faulty they did not take it offline but it stayed in service when the steering was loose ..and my 1 month old iPhone was attached to the steering for navigation and got shattered

### 1/5 — Doesn’t work

*2024-12-18, version 4.0.144*

App doesn’t connect with payment methods

### 5/5 — Excellent experience

*2024-12-05, version 4.0.144*

Definitely recommend even for half an hour

### 5/5 — Awesome

*2024-11-14, version 4.0.144*

Best in Dubai

### 1/5 — Very bad

*2024-11-06, version 4.0.144*

It’s almost impossible to park the scooter. I’ve tried to park in 8 areas but every time I saw the message: “parking area is full, find another one”. I’d been searching for 25 minutes before had found appropriate area.

### 1/5 — Scam

*2024-11-01, version 4.0.144*

If you have no ride zones and no park zones, don’t let your system rent out in these. Got a scooter, doesn’t move, doesn’t let me end my trip. 
Also no place to apply first time user discount code.

### 5/5 — Amazing

*2024-10-29, version 4.0.144*

Easy to ride and download

### 1/5 — Can’t see if the destination has parking available until you start the ride.

*2024-10-28, version 4.0.144*

Can’t see if the destination has parking available until you start the ride. No navigation in app. The map colour scheme makes most cities unrecognisable. Not enough scooters or bikes. Fewer parking spots. Just loads of major features missing. Tier you can hmu and pay me if you need me to point them out. Do better.

## Frequently asked questions about TIER

### What is TIER now?

TIER has merged with Dott. All TIER vehicles are now accessible through the Dott app. You will need to download the Dott app to continue using the service.

### What kind of vehicles can I rent?

You can rent electric scooters and electric bikes. These are designed for convenient and eco-friendly urban travel.

### How much does it cost to use the app?

The app itself is free to download. Usage of the electric scooters and bikes will incur costs, which are typically based on ride duration and potentially passes or subscriptions.

### Where can I use these vehicles?

The service offers rides in more locations, indicating expanded coverage within urban areas. Specific service zones will be visible within the app.

### What are the benefits of the new app?

The combined service offers smoother rides, access to vehicles in more locations, and potentially better passes for users. The integration aims to enhance the overall user experience.

## Version history (last 5 releases)

### 4.0.150 — 2025-09-12

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

### 4.0.149 — 2025-07-23

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

### 4.0.148 — 2025-06-30

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

### 4.0.147 — 2025-06-16

We've made some great improvements to our app! Take a look at the changes.


We've refreshed our app for an upgraded experience and taken care of some bug fixes too.

### App Store Update — 2025-04-10

We've made some great improvements to our app! Take a look at the changes.


We've refreshed our app for an upgraded experience and taken care of some bug fixes too.

## Apps similar to TIER

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Bird — Ride Electric](https://appshunter.io/ios/app/bird-ride-electric/id1260842311) | 4.9 (1,496,988) | Free | Travel |
| [Lime - #RideGreen](https://appshunter.io/ios/app/lime-ridegreen/id1199780189) | 4.9 (2,283,882) | Free | Travel |
| [Voi – e-scooters & e-bikes](https://appshunter.io/ios/app/voi-e-scooters-and-e-bikes/id1395921017) | 4.9 (9,411) | Free | Travel |
| [Spin — Electric Scooters](https://appshunter.io/ios/app/spin-electric-scooters/id1241808993) | 4.7 (488,519) | Free | Travel |
| [Uber - Request a ride](https://appshunter.io/ios/app/uber-request-a-ride/id368677368) | 4.9 (16,701,244) | Free | Travel |
| [Bolt: Request a Ride](https://appshunter.io/ios/app/bolt-request-a-ride/id675033630) | 4.8 (176,798) | Free | Travel |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*