# Earth EV Installer vs Trailer Safety Control

The clearest difference is update cadence: Earth EV Installer at every 7 months against Trailer Safety Control's every 18 months. Earth EV Installer 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.

Earth EV Installer ships an update every 7 months, Trailer Safety Control every 18 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | Earth EV Installer | Trailer Safety Control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 18 months |
| Size | 12 MB | 50 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Diatom Australia Pty Ltd](https://appshunter.io/developer/1633632604) | [ROBERT BOSCH (AUSTRALIA) PROPRIETARY LIMITED](https://appshunter.io/developer/1714209979) |

## What reviewers say

### Earth EV Installer

[App page](https://appshunter.io/ios/app/earth-ev-installer/id1633632602)

**Features:** macOS Compatibility

**In-app purchases:** none


### Trailer Safety Control

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Earth EV Installer free?

Earth EV Installer is free to download, with no in-app purchases.

### Is Trailer Safety Control free?

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

### Do Earth EV Installer or Trailer Safety Control have ads?

Neither Earth EV Installer nor Trailer Safety Control shows ads.

### Which is updated more often, Earth EV Installer or Trailer Safety Control?

Earth EV Installer ships an update every 7 months, and Trailer Safety Control every 18 months. Most recently, Earth EV Installer was updated on November 7, 2026 and Trailer Safety Control on November 7, 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.*