# YJACK VIEW vs FAN

The clearest difference is review sentiment: FAN at 100% against YJACK VIEW's 30%. FAN also leads on rating (5.0 vs 2.9) and iOS requirement (11.0 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FAN holds the better App Store score, 5.0 against 2.9. Both are backed by a comparable volume of ratings — 19 and 7 respectively. Written reviews point the same way: 30% of YJACK VIEW's written reviews are positive against 100% of FAN's.

Both ship on a similar rhythm, roughly every 5 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | YJACK VIEW | FAN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (19 ratings)](https://appshunter.io/ios/app/yjack-view/id1492358956/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/fan-410-installation-reference/id1527588808/reviews)** |
| Number of ratings | **19** | 7 |
| Positive reviews | 30.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free | Free |
| Size | 18 MB | 81 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YELLOW JACKET](https://appshunter.io/developer/924701171) | [Johnson Controls, Inc.](https://appshunter.io/developer/503559091) |

## 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


### FAN

[App page](https://appshunter.io/ios/app/fan-410-installation-reference/id1527588808)

This app serves as a digital installation manual for HVAC Bacnet controls. It provides comprehensive guidance for technicians and installers working with these systems. Access detailed information and references directly on your device.

**Highlights:** HVAC Bacnet Controls Installation Manual, Digital Reference Guide, Technical Documentation, Installer Support

**In-app purchases:** none


## Frequently asked questions

### Is YJACK VIEW free?

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

### Is FAN free?

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

### Which has better reviews, YJACK VIEW or FAN?

FAN is rated higher. YJACK VIEW averages 2.9 out of 5 from 19 ratings, while FAN averages 5.0 from 7 ratings.

### Do YJACK VIEW or FAN have ads?

Neither YJACK VIEW nor FAN shows ads.

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

YJACK VIEW ships an update every 5 months, and FAN every 5 months. Most recently, YJACK VIEW was updated on October 24, 2026 and FAN on October 24, 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.*