# AutoLink100 vs Giotto ScanTool

The clearest difference is rating: Giotto ScanTool at 3.3 against AutoLink100's 2.8. Giotto ScanTool also leads on review sentiment (31% vs 0%) and ratings volume (44 vs 4). AutoLink100's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (7.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Giotto ScanTool holds the better App Store score, 3.3 against 2.8. That said, the two scores are not equally well evidenced: Giotto ScanTool has 44 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of AutoLink100's written reviews are positive against 31% of Giotto ScanTool's.

AutoLink100 ships an update every 5 weeks, Giotto ScanTool every 3 months. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | AutoLink100 | Giotto ScanTool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/autolink100/id770747091/reviews) | **[3.3 (44 ratings)](https://appshunter.io/ios/app/giotto-scantool/id1294503417/reviews)** |
| Number of ratings | 4 | **44** |
| Positive reviews | 0.0% of reviews | **30.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 16 MB | 912 MB |
| Requires iOS | **7.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Autel Intelligent Technology Co., Ltd.](https://appshunter.io/developer/770747094) | [AutoEnginuity](https://appshunter.io/developer/1294503416) |

## What reviewers say

### AutoLink100

[App page](https://appshunter.io/ios/app/autolink100/id770747091)

Access vehicle diagnostics with your smartphone or tablet when paired with a compatible adapter. Supports all 10 OBD II test modes for quick and complete diagnosis, offering thousands of code tips to save time for DIYers and professionals.

**Highlights:** All 10 OBD II test modes, Troubleshooter code tips, Check Engine Light diagnosis, Clear codes and reset monitors, Live PCM DataStream graphing, Vehicle information retrieval

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

**In-app purchases:** none


### Giotto ScanTool

[App page](https://appshunter.io/ios/app/giotto-scantool/id1294503417)

This professional-grade automotive diagnostic tool provides extensive vehicle coverage and deep system access. It helps repair shops and fleet managers quickly service a wide range of vehicles with features like live data, bi-directional controls, and DTC reporting.

**Highlights:** Professional-grade enhanced coverage, Access to ABS, airbag, powertrain, and more, Live data and bi-directional controls, Adaptive resets and learns, DTC report output (XML/PDF), Graphing with pan and zoom, WIFI connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AutoLink100 free?

AutoLink100 is free to download, with no in-app purchases.

### Is Giotto ScanTool free?

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

### Which has better reviews, AutoLink100 or Giotto ScanTool?

Giotto ScanTool is rated higher. AutoLink100 averages 2.8 out of 5 from 4 ratings, while Giotto ScanTool averages 3.3 from 44 ratings.

### Do AutoLink100 or Giotto ScanTool have ads?

Neither AutoLink100 nor Giotto ScanTool shows ads.

### Which is updated more often, AutoLink100 or Giotto ScanTool?

AutoLink100 ships an update every 5 weeks, and Giotto ScanTool every 3 months. Most recently, AutoLink100 was updated on November 4, 2026 and Giotto ScanTool on November 3, 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.*