# iopool vs Wellis Spa Control

The clearest difference is review sentiment: iopool at 60% against Wellis Spa Control's 11%. iopool also leads on rating (4.3 vs 1.2) and update cadence (every 2 weeks vs every 3 months). Wellis Spa Control's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

iopool holds the better App Store score, 4.3 against 1.2. That said, the two scores are not equally well evidenced: iopool has 95 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 60% of iopool's written reviews are positive against 11% of Wellis Spa Control's.

iopool ships an update every 2 weeks, Wellis Spa Control every 3 months. Both last shipped on October 20, 2026.

## The numbers

| Metric | iopool | Wellis Spa Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (95 ratings)](https://appshunter.io/ios/app/iopool/id1449698927/reviews)** | [1.2 (5 ratings)](https://appshunter.io/ios/app/wellis-spa-control/id1492131457/reviews) |
| Number of ratings | **95** | 5 |
| Positive reviews | **60.0% of reviews** | 11.1% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Ad-supported | **Free** |
| Size | 78 MB | 74 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Iopool](https://appshunter.io/developer/1449698926) | [Gecko Alliance](https://appshunter.io/developer/466590306) |

## What reviewers say

### iopool

[App page](https://appshunter.io/ios/app/iopool/id1449698927)

This app helps pool owners manage their water treatment with continuous analysis from a smart probe. It provides step-by-step guidance for product additions and intelligent recommendations for maintenance, eliminating the need for manual inventory checks.

**Highlights:** Continuous water analysis, Automated product addition notifications, Step-by-step treatment guidance, Intelligent maintenance recommendations, Product inventory and quantity management, Pool health monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### Wellis Spa Control

[App page](https://appshunter.io/ios/app/wellis-spa-control/id1492131457)

Control your hot tub remotely from anywhere in the world. Adjust temperature, manage water care settings, and stay connected to your relaxation with an intuitive interface. Requires the in.touch 2 module.

**Highlights:** Remote hot tub access, Temperature control, Water care management, Intuitive user interface, Preset water care settings

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

**In-app purchases:** none


## Frequently asked questions

### Is iopool free?

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

### Is Wellis Spa Control free?

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

### Which has better reviews, iopool or Wellis Spa Control?

iopool is rated higher. iopool averages 4.3 out of 5 from 95 ratings, while Wellis Spa Control averages 1.2 from 5 ratings.

### Do iopool or Wellis Spa Control have ads?

iopool shows ads; Wellis Spa Control does not.

### Which is updated more often, iopool or Wellis Spa Control?

iopool ships an update every 2 weeks, and Wellis Spa Control every 3 months. Most recently, iopool was updated on October 20, 2026 and Wellis Spa Control on October 20, 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.*