# ControlMySpa vs Master Clear Salt System

The clearest difference is rating: ControlMySpa at 3.9 against Master Clear Salt System's 1.0. ControlMySpa also leads on ratings volume (585 vs 2). Master Clear Salt System's advantage is review sentiment (25% vs 11%). On price, update cadence, ads and in-app purchases there is nothing between them.

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

ControlMySpa holds the better App Store score, 3.9 against 1.0. That said, the two scores are not equally well evidenced: ControlMySpa has 585 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 11% of ControlMySpa's written reviews are positive against 25% of Master Clear Salt System's, so the app with the better star average is not the one people write more warmly about.

ControlMySpa ships an update every 5 weeks, Master Clear Salt System every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | ControlMySpa | Master Clear Salt System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (585 ratings)](https://appshunter.io/ios/app/controlmyspa/id1193806359/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/master-clear-salt-system/id6738960674/reviews) |
| Number of ratings | **585** | 2 |
| Positive reviews | 10.6% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 12 MB | 62 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Balboa Water Group](https://appshunter.io/developer/469886191) | [Master Spas](https://appshunter.io/developer/574204539) |

## What reviewers say

### ControlMySpa

[App page](https://appshunter.io/ios/app/controlmyspa/id1193806359)

Remotely manage your hot tub's temperature, lighting, and schedules from your smartphone or tablet. Receive instant alerts for potential issues, ensuring peace of mind even when you're away.

**Highlights:** Remote temperature control, Lighting management, Schedule setup, Push notification alerts, Problem detection

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient remote control
- ⏱️ Scheduling capabilities
- 💰 Potential energy savings
- 👍 Intuitive interface

**What reviewers complain about**

- 🐛 Frequent disconnections
- ⏱️ Slow response times
- 🔌 Unreliable connectivity
- 📚 Lack of documentation
- 🤖 Poor customer support

**Reported bugs**

- Inconsistent temperature display
- Inability to save settings
- Login issues and lost credentials
- Crashes and freezes after updates

**Requested features**

- More granular temperature control
- Ability to control lights and jets
- Improved scheduling options
- Push notifications for status changes


### 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 ControlMySpa free?

ControlMySpa 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.

### Which has better reviews, ControlMySpa or Master Clear Salt System?

ControlMySpa is rated higher. ControlMySpa averages 3.9 out of 5 from 585 ratings, while Master Clear Salt System averages 1.0 from 2 ratings.

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

Neither ControlMySpa nor Master Clear Salt System shows ads.

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

ControlMySpa ships an update every 5 weeks, and Master Clear Salt System every 3 weeks. Most recently, ControlMySpa was updated on October 24, 2026 and Master Clear Salt System 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.*