# YJACK VIEW vs XOi

The clearest difference is update cadence: XOi at every 5 weeks against YJACK VIEW's every 5 months. YJACK VIEW's advantage is iOS requirement (15.6 vs 18.0). 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.

YJACK VIEW ships an update every 5 months, XOi every 5 weeks. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | YJACK VIEW | XOi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (19 ratings)](https://appshunter.io/ios/app/yjack-view/id1492358956/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 18 MB | 89 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YELLOW JACKET](https://appshunter.io/developer/924701171) | [XOEye](https://appshunter.io/developer/1100846826) |

## What reviewers say

### YJACK VIEW

[App page](https://appshunter.io/ios/app/yjack-view/id1492358956)

This app provides a comprehensive HVAC/R diagnostic solution by integrating with specialized hardware. It allows users to view live data, create and share service reports, and perform detailed system analysis for pressure, temperature, evacuation, and more.

**Highlights:** Live data monitoring, Customizable PDF service reports, Enhanced datalogging, Pressure and temperature analysis, Evacuation monitoring, Psychrometric analysis, Electrical readings

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

**In-app purchases:** none


### XOi

[App page](https://appshunter.io/ios/app/xoi/id6752495272)

**In-app purchases:** none


## Frequently asked questions

### Is YJACK VIEW free?

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

### Is XOi free?

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

### Do YJACK VIEW or XOi have ads?

Neither YJACK VIEW nor XOi shows ads.

### Which is updated more often, YJACK VIEW or XOi?

YJACK VIEW ships an update every 5 months, and XOi every 5 weeks. Most recently, YJACK VIEW was updated on October 10, 2026 and XOi on October 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.*