# Jayco Off vs Zeliox ZAI4

The clearest difference is update cadence: Zeliox ZAI4 at every 7 months against Jayco Off's every 25 months. Zeliox ZAI4 also leads on iOS requirement (12.0 vs 15). 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.

Jayco Off ships an update every 25 months, Zeliox ZAI4 every 7 months. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Jayco Off | Zeliox ZAI4 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 7 months** |
| Size | 27 MB | 34 MB |
| Requires iOS | 15 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) | [Zeliox](https://appshunter.io/developer/1478320738) |

## What reviewers say

### Jayco Off

[App page](https://appshunter.io/ios/app/jayco-off-grid-v39-plus/id6618139783)

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

**In-app purchases:** none


### Zeliox ZAI4

[App page](https://appshunter.io/ios/app/zeliox-zai4/id6737747373)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Jayco Off free?

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

### Is Zeliox ZAI4 free?

Zeliox ZAI4 is free to download, with no in-app purchases.

### Do Jayco Off or Zeliox ZAI4 have ads?

Neither Jayco Off nor Zeliox ZAI4 shows ads.

### Which is updated more often, Jayco Off or Zeliox ZAI4?

Jayco Off ships an update every 25 months, and Zeliox ZAI4 every 7 months. Most recently, Jayco Off was updated on October 25, 2026 and Zeliox ZAI4 on October 9, 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.*