# CarLer vs ADI BOOK

The clearest difference is update cadence: ADI BOOK at fortnightly against CarLer's monthly. On price, ads, in-app purchases and device support there is nothing between them.

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

CarLer ships an update monthly, ADI BOOK fortnightly. The most recent releases landed on June 4, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | CarLer | ADI BOOK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 61 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [CarLer LTD](https://appshunter.io/developer/1679985185) | [ADI BOOK LIMITED](https://appshunter.io/developer/1801016102) |

## What reviewers say

### CarLer

[App page](https://appshunter.io/ios/app/carler/id6447003702)

This app connects aspiring drivers with certified instructors, offering tools for scheduling lessons, receiving feedback, and monitoring progress. It aims to build confidence and prepare users for their driving tests.

**Highlights:** Instructor connection, Lesson scheduling, Personalized feedback, Progress tracking, Driving confidence building

**Features:** macOS Compatibility

**In-app purchases:** none


### ADI BOOK

[App page](https://appshunter.io/ios/app/adi-book-instructor/id6743073433)

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

**In-app purchases:** none


## Frequently asked questions

### Is CarLer free?

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

### Is ADI BOOK free?

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

### Do CarLer or ADI BOOK have ads?

Neither CarLer nor ADI BOOK shows ads.

### Which is updated more often, CarLer or ADI BOOK?

CarLer ships an update monthly, and ADI BOOK fortnightly. Most recently, CarLer was updated on June 4, 2026 and ADI BOOK on September 17, 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.*