# Automobile Engineering Book vs HowToo

The clearest difference is in-app purchases: HowToo at none against Automobile Engineering Book's 5. HowToo also leads on rating (4.8 vs 4.6). Automobile Engineering Book's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 4 months). On price, review sentiment, ratings volume and device support there is nothing between them.

Both are free to download. Automobile Engineering Book sells 4 in-app purchases, starting at $2.99 per 3 months. HowToo asks for nothing beyond the download.

HowToo holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 9 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Automobile Engineering Book ships an update every 5 weeks, HowToo every 4 months. The most recent releases landed on August 4, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Automobile Engineering Book | HowToo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/automobile-engineering-book/id1583758958/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/howtoo/id6753329721/reviews)** |
| Number of ratings | **9** | 6 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 136 MB | 17 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Pereshein](https://appshunter.io/developer/1041461209) | [HowToo](https://appshunter.io/developer/1843538915) |

## What reviewers say

### Automobile Engineering Book

[App page](https://appshunter.io/ios/app/automobile-engineering-book/id1583758958)

This app provides a comprehensive yet accessible guide to automobile engineering. It covers basic vehicle structure, common malfunctions, and maintenance rules in a clear, engaging format with ample illustrations. Ideal for novice drivers and anyone seeking to understand their car better.

**Highlights:** Basic vehicle structure information, Common malfunctions and solutions, Operation and maintenance rules, Simple language explanations of car systems, Extensive illustrative material

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | per 3 months |
| Full version for three months | $2.99 | one-time |
| Full version for one year | $4.99 | one-time |
| Full version forever | $6.99 | one-time |


### HowToo

[App page](https://appshunter.io/ios/app/howtoo/id6753329721)

Get expert vehicle repair guidance with step-by-step instructions, tool lists, and safety notes tailored to your specific car. You can also order guaranteed-fit parts directly within the app, saving you time and money on DIY repairs.

**Highlights:** Vehicle-specific repair procedures, Tool and torque spec lists, Step-by-step videos, Guaranteed-fit parts ordering, DIY cost vs. shop estimates, Maintenance interval information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Automobile Engineering Book free?

Automobile Engineering Book is free to download, with in-app purchases available.

### Is HowToo free?

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

### Which has better reviews, Automobile Engineering Book or HowToo?

HowToo is rated higher. Automobile Engineering Book averages 4.6 out of 5 from 9 ratings, while HowToo averages 4.8 from 6 ratings.

### Do Automobile Engineering Book or HowToo have ads?

HowToo shows ads; Automobile Engineering Book does not.

### Which is updated more often, Automobile Engineering Book or HowToo?

Automobile Engineering Book ships an update every 5 weeks, and HowToo every 4 months. Most recently, Automobile Engineering Book was updated on August 4, 2026 and HowToo on September 2, 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.*