# HotTub&Pool vs ControlMySpa

The clearest difference is rating: ControlMySpa at 3.9 against HotTub&Pool's 3.5. ControlMySpa also leads on update cadence (every 5 weeks vs every 7 months) and ratings volume (589 vs 13). HotTub&Pool's advantage is review sentiment (24% vs 10%) and iOS requirement (8.0 vs 16.0). On price, ads, in-app purchases and monetization model 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 3.5. That said, the two scores are not equally well evidenced: ControlMySpa has 589 ratings behind it against 13, so its average is the more settled of the two. Written reviews complicate that: 24% of HotTub&Pool's written reviews are positive against 10% of ControlMySpa's, so the app with the better star average is not the one people write more warmly about.

HotTub&Pool ships an update every 7 months, ControlMySpa every 5 weeks. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | HotTub&Pool | ControlMySpa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (13 ratings)](https://appshunter.io/ios/app/hottub-and-pool/id358719601/reviews) | **[3.9 (589 ratings)](https://appshunter.io/ios/app/controlmyspa/id1193806359/reviews)** |
| Number of ratings | 13 | **589** |
| Positive reviews | **23.8% of reviews** | 10.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 12 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pixelwand Ltd](https://appshunter.io/developer/353011318) | [Balboa Water Group](https://appshunter.io/developer/469886191) |

## What reviewers say

### HotTub&Pool

[App page](https://appshunter.io/ios/app/hottub-and-pool/id358719601)

This utility app helps hot tub, spa, and pool owners accurately calculate chemical dosages for water balancing. It supports calculations for alkalinity, pH, sanitizer, and stabilizer, along with water balancing features like the Langelier Saturation Index (LSI).

**Highlights:** Chemical dosage calculation, Water balancing (LSI), Pool volume calculator, Flow rate calculator, Turnover calculator, Filter size calculator

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is HotTub&Pool free?

HotTub&Pool is free to download, with no in-app purchases.

### Is ControlMySpa free?

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

### Which has better reviews, HotTub&Pool or ControlMySpa?

ControlMySpa is rated higher. HotTub&Pool averages 3.5 out of 5 from 13 ratings, while ControlMySpa averages 3.9 from 589 ratings.

### Do HotTub&Pool or ControlMySpa have ads?

Neither HotTub&Pool nor ControlMySpa shows ads.

### Which is updated more often, HotTub&Pool or ControlMySpa?

HotTub&Pool ships an update every 7 months, and ControlMySpa every 5 weeks. Most recently, HotTub&Pool was updated on October 23, 2026 and ControlMySpa on October 26, 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.*