# BOOK vs Zelf mobility

The clearest difference is rating: Zelf mobility at 5.0 against BOOK's 4.0. On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zelf mobility holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

BOOK ships an update every 11 days, Zelf mobility every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | BOOK | Zelf mobility |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/book-it-bikes/id6476447607/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zelf-mobility/id6760919360/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Monetization | Free | Free |
| Size | 107 MB | 107 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SIA ATOM Tech](https://appshunter.io/developer/1453550254) | [Zelfi Ltd](https://appshunter.io/developer/1886805983) |

## What reviewers say

### BOOK

[App page](https://appshunter.io/ios/app/book-it-bikes/id6476447607)

This service facilitates local travel and exploration around Erlangen, specifically for guests of BOOK-IT apartments. It offers a convenient way for anyone in the vicinity to get around town.

**Highlights:** Local ride sharing, Explore Erlangen, Guest transportation, Open to all users, Convenient local travel

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


### Zelf mobility

[App page](https://appshunter.io/ios/app/zelf-mobility/id6760919360)

This app consolidates all your transportation needs into a single platform. Find, book, and switch between cars, vans, taxis, scooters, and e-bikes with one account and payment method. Enjoy flexible mobility for any journey, from daily commutes to moving larger items.

**Highlights:** Find and book various transport modes, Switch between cars, vans, taxis, scooters, e-bikes, Single account and payment method, Transparent pricing, Instant booking and payment, Trip history and receipts

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BOOK free?

BOOK is free to download, with no in-app purchases.

### Is Zelf mobility free?

Zelf mobility is free to download, with no in-app purchases.

### Which has better reviews, BOOK or Zelf mobility?

Zelf mobility is rated higher. BOOK averages 4.0 out of 5 from 2 ratings, while Zelf mobility averages 5.0 from 1 ratings.

### Do BOOK or Zelf mobility have ads?

Neither BOOK nor Zelf mobility shows ads.

### Which is updated more often, BOOK or Zelf mobility?

BOOK ships an update every 11 days, and Zelf mobility every 2 weeks. Most recently, BOOK was updated on October 24, 2026 and Zelf mobility on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*