# ATSA SIG vs iTire

The clearest difference is iOS requirement: ATSA SIG at 8.0 against iTire's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ATSA SIG | iTire |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 48 MB | 145 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AERO TRANSPORTE S.A.](https://appshunter.io/developer/1462381236) | [ITR Tracking](https://appshunter.io/developer/1780680383) |

## What reviewers say

### ATSA SIG

[App page](https://appshunter.io/ios/app/atsa-sig/id1467157631)

**Features:** macOS Compatibility

**In-app purchases:** none


### iTire

[App page](https://appshunter.io/ios/app/itire/id6738400367)

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

**In-app purchases:** none


## Frequently asked questions

### Is ATSA SIG free?

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

### Is iTire free?

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

### Do ATSA SIG or iTire have ads?

Neither ATSA SIG nor iTire shows ads.

### Which is updated more often, ATSA SIG or iTire?

ATSA SIG ships an update every 2 weeks, and iTire every 2 weeks. Most recently, ATSA SIG was updated on October 5, 2026 and iTire on October 11, 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.*