# DHC Sync vs Tread

The clearest difference is in-app purchases: DHC Sync at none against Tread's 1. Tread's advantage is update cadence (every 4 days vs every 5 months) and iOS requirement (13.4 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Tread sells 1 in-app purchase, starting at $2.99 per year. DHC Sync asks for nothing beyond the download.

DHC Sync ships an update every 5 months, Tread every 4 days. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | DHC Sync | Tread |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (10 ratings)](https://appshunter.io/ios/app/tread-ai/id6755405651/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 34 MB | 26 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DHC Specialty Corp.](https://appshunter.io/developer/1130832649) | [Majid Sadri](https://appshunter.io/developer/1819096776) |

## What reviewers say

### DHC Sync

[App page](https://appshunter.io/ios/app/dhc-sync-btw200/id1497080351)

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

**In-app purchases:** none


### Tread

[App page](https://appshunter.io/ios/app/tread-ai/id6755405651)

Instantly analyze your tire health using your phone's camera. Get advanced tread-depth and tire-condition reports in seconds, no tools or appointments needed. Stay safer on the road with smart ML-powered tire inspection.

**Highlights:** ML-powered tire inspection, Phone camera analysis, Instant tread-depth reports, Tire condition analysis, No tools required, No appointments needed

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Annual | $2.99 | per year |


## Frequently asked questions

### Is DHC Sync free?

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

### Is Tread free?

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

### Do DHC Sync or Tread have ads?

Neither DHC Sync nor Tread shows ads.

### Which is updated more often, DHC Sync or Tread?

DHC Sync ships an update every 5 months, and Tread every 4 days. Most recently, DHC Sync was updated on October 11, 2026 and Tread on October 15, 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.*