# 3Z RF Vision vs COLT 4

The clearest difference is update cadence: COLT 4 at monthly against 3Z RF Vision's every 25 months. 3Z RF Vision's advantage is iOS requirement (12.4 vs 15.0). 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.

3Z RF Vision ships an update every 25 months, COLT 4 monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 3Z RF Vision | COLT 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (7 ratings)](https://appshunter.io/ios/app/3z-rf-vision/id1368118038/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Monthly** |
| Monetization | Free | — |
| Size | 9 MB | 155 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [VIAVI Solutions Inc.](https://appshunter.io/developer/505552642) | [Straightpoint](https://appshunter.io/developer/1232597225) |

## What reviewers say

### 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


### COLT 4

[App page](https://appshunter.io/ios/app/colt-4/id6736948101)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3Z RF Vision free?

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

### Is COLT 4 free?

COLT 4 is free to download, with no in-app purchases.

### Do 3Z RF Vision or COLT 4 have ads?

Neither 3Z RF Vision nor COLT 4 shows ads.

### Which is updated more often, 3Z RF Vision or COLT 4?

3Z RF Vision ships an update every 25 months, and COLT 4 monthly. Most recently, 3Z RF Vision was updated on October 24, 2026 and COLT 4 on October 25, 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.*