# Trailer Safety Control vs Arizon Off Grid

The clearest difference is update cadence: Arizon Off Grid at every 4 weeks against Trailer Safety Control's every 18 months. 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 Safety Control ships an update every 18 months, Arizon Off Grid every 4 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Trailer Safety Control | Arizon Off Grid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 4 weeks** |
| Size | 50 MB | 81 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ROBERT BOSCH (AUSTRALIA) PROPRIETARY LIMITED](https://appshunter.io/developer/1714209979) | [Arizon Off Grid](https://appshunter.io/developer/1838872178) |

## What reviewers say

### Trailer Safety Control

[App page](https://appshunter.io/ios/app/trailer-safety-control/id6470779977)

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

**In-app purchases:** none


### Arizon Off Grid

[App page](https://appshunter.io/ios/app/arizon-off-grid/id6752319619)

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

**In-app purchases:** none


## Frequently asked questions

### Is Trailer Safety Control free?

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

### Is Arizon Off Grid free?

Arizon Off Grid is free to download, with no in-app purchases.

### Do Trailer Safety Control or Arizon Off Grid have ads?

Neither Trailer Safety Control nor Arizon Off Grid shows ads.

### Which is updated more often, Trailer Safety Control or Arizon Off Grid?

Trailer Safety Control ships an update every 18 months, and Arizon Off Grid every 4 weeks. Most recently, Trailer Safety Control was updated on November 7, 2026 and Arizon Off Grid on November 8, 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.*