# Trailer SYNC vs smart

The clearest difference is update cadence: smart at monthly against Trailer SYNC's every 12 months. smart also leads on iOS requirement (11.0 vs 14.0). On price, ads, 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.

Trailer SYNC ships an update every 12 months, smart monthly. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Trailer SYNC | smart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Monthly** |
| Size | 1 MB | 18 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Michael Fort](https://appshunter.io/developer/1330023385) | [QI Automotive Co.,Ltd](https://appshunter.io/developer/1635704762) |

## What reviewers say

### Trailer SYNC

[App page](https://appshunter.io/ios/app/trailer-sync/id1643608907)

**In-app purchases:** none


### smart

[App page](https://appshunter.io/ios/app/smart-controller/id6476338294)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trailer SYNC free?

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

### Is smart free?

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

### Do Trailer SYNC or smart have ads?

Neither Trailer SYNC nor smart shows ads.

### Which is updated more often, Trailer SYNC or smart?

Trailer SYNC ships an update every 12 months, and smart monthly. Most recently, Trailer SYNC was updated on September 17, 2026 and smart on September 20, 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.*