# VT vs Master Clear Salt System

The clearest difference is update cadence: Master Clear Salt System at every 3 weeks against VT's every 2 months. VT's advantage is iOS requirement (9.0 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.

VT ships an update every 2 months, Master Clear Salt System every 3 weeks. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | VT | Master Clear Salt System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.3 (3 ratings)](https://appshunter.io/ios/app/master-clear-salt-system/id6738960674/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 34 MB | 62 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [巍巍 蒋](https://appshunter.io/developer/1439271480) | [Master Spas](https://appshunter.io/developer/574204539) |

## What reviewers say

### VT

[App page](https://appshunter.io/ios/app/vt-hts/id1517338260)

**In-app purchases:** none


### Master Clear Salt System

[App page](https://appshunter.io/ios/app/master-clear-salt-system/id6738960674)

Monitor and control your spa's water chemistry remotely. Adjust settings, check salt levels, and manage chlorine cycles to ensure optimal water quality with minimal effort.

**Highlights:** Monitor salt level, Adjust chlorine sensor sensitivity, Manually override chlorine cycle, Check Smart Cell life, Remote control and monitoring

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

**In-app purchases:** none


## Frequently asked questions

### Is VT free?

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

### Is Master Clear Salt System free?

Master Clear Salt System is free to download, with no in-app purchases.

### Do VT or Master Clear Salt System have ads?

Neither VT nor Master Clear Salt System shows ads.

### Which is updated more often, VT or Master Clear Salt System?

VT ships an update every 2 months, and Master Clear Salt System every 3 weeks. Most recently, VT was updated on October 25, 2026 and Master Clear Salt System on October 30, 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.*