# Chmod Calculator vs 3Z RF Vision

The clearest difference is price: 3Z RF Vision at Free against Chmod Calculator's $0.99. 3Z RF Vision also leads on rating (3.3 vs 2.0) and ratings volume (7 vs 2). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

3Z RF Vision is free to download; Chmod Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

3Z RF Vision holds the better App Store score, 3.3 against 2.0. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Chmod Calculator ships an update every 33 months, 3Z RF Vision every 25 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Chmod Calculator | 3Z RF Vision |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [2.0 (2 ratings)](https://appshunter.io/ios/app/chmod-calculator/id1073777582/reviews) | **[3.3 (7 ratings)](https://appshunter.io/ios/app/3z-rf-vision/id1368118038/reviews)** |
| Number of ratings | 2 | **7** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 25 months** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 9 MB |
| Requires iOS | 15.6 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Yonadam](https://appshunter.io/developer/1006281613) | [VIAVI Solutions Inc.](https://appshunter.io/developer/505552642) |

## What reviewers say

### Chmod Calculator

[App page](https://appshunter.io/ios/app/chmod-calculator/id1073777582)

This utility app helps users easily calculate file permissions in both numerical and symbolic formats. It supports advanced permission bits like setuid, setgid, and Sticky.

**Highlights:** Numerical permission calculation, Symbolic permission calculation, setuid bit support, setgid bit support, Sticky bit support

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

**In-app purchases:** none


### 3Z RF Vision

[App page](https://appshunter.io/ios/app/3z-rf-vision/id1368118038)

Control your RF Vision Antenna Alignment Tool remotely from an iOS device. View measurements, edit site information, and email reports directly from the field via Bluetooth.

**Highlights:** Remote control of RF Vision measurements, View, edit, delete, and save reports, Email reports from the field, Bluetooth connectivity, Edit site information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chmod Calculator free?

Chmod Calculator costs $0.99, with no in-app purchases.

### Is 3Z RF Vision free?

3Z RF Vision is free to download, with no in-app purchases.

### Which has better reviews, Chmod Calculator or 3Z RF Vision?

3Z RF Vision is rated higher. Chmod Calculator averages 2.0 out of 5 from 2 ratings, while 3Z RF Vision averages 3.3 from 7 ratings.

### Do Chmod Calculator or 3Z RF Vision have ads?

Neither Chmod Calculator nor 3Z RF Vision shows ads.

### Which is updated more often, Chmod Calculator or 3Z RF Vision?

Chmod Calculator ships an update every 33 months, and 3Z RF Vision every 25 months. Most recently, Chmod Calculator was updated on October 24, 2026 and 3Z RF Vision on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*