# KeyTool vs OBDSTAR

The clearest difference is ads: KeyTool at none against OBDSTAR's shown. KeyTool also leads on update cadence (every 10 days vs every 6 months) and iOS requirement (8.0 vs 15.5). On price, 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.

KeyTool ships an update every 10 days, OBDSTAR every 6 months. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | KeyTool | OBDSTAR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.5 (4 ratings)](https://appshunter.io/ios/app/obdstar/id6447170127/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 6 months |
| Monetization | — | Ad-supported |
| Size | 35 MB | 122 MB |
| Requires iOS | **8.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Wuxi Kaiyang Electronic Technology Co., Ltd.](https://appshunter.io/developer/1131154502) | [深圳市轩宇车鼎科技有限公司](https://appshunter.io/developer/1680461221) |

## What reviewers say

### KeyTool

[App page](https://appshunter.io/ios/app/keytool/id1223927386)

**Features:** macOS Compatibility

**In-app purchases:** none


### OBDSTAR

[App page](https://appshunter.io/ios/app/obdstar/id6447170127)

A handheld maintenance database for technicians, offering technical support, data queries, video viewing, and after-sales consultation. It provides a comprehensive database for automotive, motorcycle, and marine maintenance, aiming for efficient and professional service.

**Highlights:** Handheld maintenance database, Technical support, Data query, Video viewing, After-sales consultation, Comprehensive maintenance data

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

**In-app purchases:** none


## Frequently asked questions

### Is KeyTool free?

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

### Is OBDSTAR free?

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

### Do KeyTool or OBDSTAR have ads?

OBDSTAR shows ads; KeyTool does not.

### Which is updated more often, KeyTool or OBDSTAR?

KeyTool ships an update every 10 days, and OBDSTAR every 6 months. Most recently, KeyTool was updated on October 3, 2026 and OBDSTAR on October 9, 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.*