# SL Basics vs Car Maintenance Book

The clearest difference is update cadence: Car Maintenance Book at every 2 months against SL Basics's every 5 months. SL Basics's advantage is iOS requirement (12.1 vs 14.0). 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.

SL Basics ships an update every 5 months, Car Maintenance Book every 2 months. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | SL Basics | Car Maintenance Book |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 160 MB | 31 MB |
| Requires iOS | **12.1** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SL Basics](https://appshunter.io/developer/1698358564) | [Osama Yunus](https://appshunter.io/developer/1460131329) |

## What reviewers say

### SL Basics

[App page](https://appshunter.io/ios/app/sl-basics/id6443513631)

**In-app purchases:** none


### Car Maintenance Book

[App page](https://appshunter.io/ios/app/car-maintenance-book/id6496865723)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SL Basics free?

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

### Is Car Maintenance Book free?

Car Maintenance Book is free to download, with no in-app purchases.

### Do SL Basics or Car Maintenance Book have ads?

Neither SL Basics nor Car Maintenance Book shows ads.

### Which is updated more often, SL Basics or Car Maintenance Book?

SL Basics ships an update every 5 months, and Car Maintenance Book every 2 months. Most recently, SL Basics was updated on October 18, 2026 and Car Maintenance Book on October 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.*