# Giotto ScanTool vs Auto

The clearest difference is review sentiment: Auto at 100% against Giotto ScanTool's 31%. Auto also leads on rating (4.7 vs 3.3) and update cadence (weekly vs every 3 months). Giotto ScanTool's advantage is in-app purchases (none vs 2) and ratings volume (44 vs 3). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Auto sells 2 in-app purchases, starting at $4.99 per month. Giotto ScanTool asks for nothing beyond the download.

Auto holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: Giotto ScanTool has 44 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 31% of Giotto ScanTool's written reviews are positive against 100% of Auto's.

Giotto ScanTool ships an update every 3 months, Auto weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Giotto ScanTool | Auto |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (44 ratings)](https://appshunter.io/ios/app/giotto-scantool/id1294503417/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/auto-spec/id6761017532/reviews)** |
| Number of ratings | **44** | 3 |
| Positive reviews | 30.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 912 MB | 63 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AutoEnginuity](https://appshunter.io/developer/1294503416) | [JOSHUA D GONZALEZ](https://appshunter.io/developer/1887331417) |

## What reviewers say

### 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


### Auto

[App page](https://appshunter.io/ios/app/auto-spec/id6761017532)

Access accurate vehicle specifications and parts information instantly. Search by VIN or manual entry to find essential data like oil specs and fluid capacities. Discover both OEM and aftermarket parts to confidently find what your vehicle needs.

**Highlights:** VIN or manual vehicle search, Oil specifications and fluid capacities, OEM and aftermarket parts lookup, Save vehicles for quick access, Maintenance-related information

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access | $4.99 | per month |
| AutoSpec Pro | $44.99 | per year |


## Frequently asked questions

### Is Giotto ScanTool free?

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

### Is Auto free?

Auto is free to download, with in-app purchases available.

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

Auto is rated higher. Giotto ScanTool averages 3.3 out of 5 from 44 ratings, while Auto averages 4.7 from 3 ratings.

### Do Giotto ScanTool or Auto have ads?

Neither Giotto ScanTool nor Auto shows ads.

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

Giotto ScanTool ships an update every 3 months, and Auto weekly. Most recently, Giotto ScanTool was updated on November 3, 2026 and Auto on October 31, 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.*