# iAquaLink vs EOS Spa Control

The clearest difference is rating: iAquaLink at 4.7 against EOS Spa Control's 1.0. iAquaLink also leads on ratings volume (100K vs 3) and iOS requirement (13.2 vs 15.1). EOS Spa Control's advantage is monetization model (free vs free with in-app purchases). On price, review sentiment, update cadence and ads there is nothing between them.

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

iAquaLink holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: iAquaLink has 100K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 28% of iAquaLink's written reviews are positive against 21% of EOS Spa Control's.

iAquaLink ships an update every 2 months, EOS Spa Control every 3 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | iAquaLink | EOS Spa Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (100K ratings)](https://appshunter.io/ios/app/iaqualink/id443059509/reviews)** | [1.0 (3 ratings)](https://appshunter.io/ios/app/eos-spa-control/id924630048/reviews) |
| Number of ratings | **100K** | 3 |
| Positive reviews | **28.4% of reviews** | 21.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 41 MB | 43 MB |
| Requires iOS | **13.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zodiac Pool Systems, Inc.](https://appshunter.io/developer/443059512) | [EOS Saunatechnik GmbH](https://appshunter.io/developer/924630047) |

## What reviewers say

### iAquaLink

[App page](https://appshunter.io/ios/app/iaqualink/id443059509)

Control and monitor your swimming pool equipment remotely from your mobile device. Adjust settings like pump speed, temperature, and lighting, and automate cleaning schedules. Offers comprehensive management for various pool systems and accessories.

**Highlights:** Remote pool equipment monitoring and control, Schedule and operate pumps, Control pool and spa heating, Automate pool lighting, Manage saltwater chlorinators, On-demand robotic pool cleaner control, Temperature monitoring and adjustment

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to control pool and spa remotely
- 👍 Convenient for monitoring pool status
- 💡 Good integration with Alexa
- 🔒 Reliable connectivity when hardwired

**What reviewers complain about**

- 🐛 Frequent connectivity issues and app crashes
- 👎 Limited functionality in the app compared to web interface
- 💤 Slow response times and laggy performance
- 🤯 Confusing and outdated user interface

**Reported bugs**

- App freezes and loses connection to pool equipment
- Inability to re-add previously connected devices
- Unreliable firmware updates causing issues
- Inconsistent display of pool status and settings

**Requested features**

- Customizable dashboard and one-touch controls
- Notifications for pool events (e.g., robot full, temperature reached)
- Improved scheduling and automation options
- Better integration with smart home platforms


### EOS Spa Control

[App page](https://appshunter.io/ios/app/eos-spa-control/id924630048)

Remotely control and monitor your sauna or steam bath from anywhere. Adjust temperature, humidity, and lighting, set heating times, and manage multiple cabins with an intuitive interface. Offers personalized profiles and usage statistics for a seamless wellness experience.

**Highlights:** Remote sauna and steam bath control, Adjustable temperature, humidity, and lighting, Multi-cabin capability, Preset user profiles, Usage statistics, Account-based access

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

**In-app purchases:** none


## Frequently asked questions

### Is iAquaLink free?

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

### Is EOS Spa Control free?

EOS Spa Control is free to download, with no in-app purchases.

### Which has better reviews, iAquaLink or EOS Spa Control?

iAquaLink is rated higher. iAquaLink averages 4.7 out of 5 from 100K ratings, while EOS Spa Control averages 1.0 from 3 ratings.

### Do iAquaLink or EOS Spa Control have ads?

Neither iAquaLink nor EOS Spa Control shows ads.

### Which is updated more often, iAquaLink or EOS Spa Control?

iAquaLink ships an update every 2 months, and EOS Spa Control every 3 months. Most recently, iAquaLink was updated on October 14, 2026 and EOS Spa Control on October 7, 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.*