# Coldtub vs Pooli

The clearest difference is update cadence: Pooli at every 2 weeks against Coldtub's every 3 months. Pooli also leads on ratings volume (369 vs 48). Coldtub's advantage is monetization model (free vs free with in-app purchases) and rating (4.9 vs 4.6). On price, 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.

Coldtub holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Pooli has 369 ratings behind it against 48, so its average is the more settled of the two. Written reviews point the same way: 100% of Coldtub's written reviews are positive against 87% of Pooli's.

Coldtub ships an update every 3 months, Pooli every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Coldtub | Pooli |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (48 ratings)](https://appshunter.io/ios/app/coldtub/id1146179578/reviews)** | [4.6 (369 ratings)](https://appshunter.io/ios/app/pooli/id1491565847/reviews) |
| Number of ratings | 48 | **369** |
| Positive reviews | **100.0% of reviews** | 86.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 51 MB | 124 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Blue Falls Manufacturing Limited](https://appshunter.io/developer/1779341572) | [Pooli, Inc.](https://appshunter.io/developer/376941984) |

## What reviewers say

### Coldtub

[App page](https://appshunter.io/ios/app/coldtub/id1146179578)

This app provides comprehensive information about a specific cryotherapy product. For owners, it functions as a remote control to monitor and adjust spa settings, including pump operation and temperature.

**Highlights:** Product information, Remote control functionality, Spa status monitoring, Pump on/off control, Setting modification

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Pooli

[App page](https://appshunter.io/ios/app/pooli/id1491565847)

This app helps you maintain a clean and safe pool or spa with smart testing, tailored advice, and customized task lists. It offers advanced AI for instant feedback, problem resolution guidance, and comprehensive sanitization support. Track multiple pools, manage inventory, and even collaborate with others for effortless pool care.

**Highlights:** Smart water testing with manual entry or strip scanning, Interactive Calcite Saturation Index (CSI) tool, Tailored reports and expert maintenance advice, Advanced AI for instant pool questions, Customized task lists and reminders, Multi-pool and spa management, Chemical inventory tracking with restock reminders

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful for maintaining pool/spa
- 💡 Customizable features
- 👍 Accurate water chemistry calculations
- 👍 Useful reminders and tracking

**What reviewers complain about**

- 🐛 Inconsistent test strip scanning
- 💰 Expensive subscription model
- 🔍 Limited free features
- 🐛 Bugs and glitches in the app

**Reported bugs**

- Inventory management issues
- Reminders triggering at inconvenient times

**Requested features**

- Ability to add equipment details and service history
- Integration with calendar apps for reminders
- More customization options for ideal water levels
- Improved test strip scanning accuracy


## Frequently asked questions

### Is Coldtub free?

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

### Is Pooli free?

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

### Which has better reviews, Coldtub or Pooli?

Coldtub is rated higher. Coldtub averages 4.9 out of 5 from 48 ratings, while Pooli averages 4.6 from 369 ratings.

### Do Coldtub or Pooli have ads?

Neither Coldtub nor Pooli shows ads.

### Which is updated more often, Coldtub or Pooli?

Coldtub ships an update every 3 months, and Pooli every 2 weeks. Most recently, Coldtub was updated on October 24, 2026 and Pooli on October 25, 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.*