# Pool vs Habitube

The clearest difference is price: Habitube at Free against Pool's $4.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Habitube is free to download; Pool costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pool ships an update every 5 weeks, Habitube every 4 weeks. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Pool | Habitube |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.1 (630 ratings)](https://appshunter.io/ios/app/pool-calculator/id412876581/reviews)** | — |
| Number of ratings | **630** | — |
| Positive reviews | 21.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 17 MB | 24 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Pool and Spa Resources, LLC](https://appshunter.io/developer/1358030201) | [arai.me](https://appshunter.io/developer/1652629805) |

## What reviewers say

### Pool

[App page](https://appshunter.io/ios/app/pool-calculator/id412876581)

This app simplifies swimming pool and hot tub chemistry maintenance by performing all necessary calculations. It provides clear instructions on chemical dosages to maintain balanced, clear water, eliminating the need for complex charts and formulas.

**Highlights:** Chemical dosage calculations, Pool volume calculation, Chemical effects analysis, Customizable chemical ranges, Offline functionality

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Useful pool chemistry calculator
- 🚀 Makes pool maintenance easy
- 👍 Provides chemical dosage recommendations
- 🔍 Helpful 'Effects' tool to understand chemical impacts

**What reviewers complain about**

- 🐛 Accuracy issues with certain chemical calculations
- 🔍 Confusing or outdated chemical names
- 🔍 Limited customization options
- 🐛 Crashes and compatibility issues with newer iOS versions

**Reported bugs**

- App crashes on launch for many users
- Keyboard issues preventing data entry
- Incorrect chemical effect information (e.g. soda ash)
- Volume calculation not updating properly

**Requested features**

- Ability to save and track test history
- Support for multiple pools/spas
- Metric-only unit support
- More detailed chemical dosage information (e.g. weight-based)


### Habitube

[App page](https://appshunter.io/ios/app/habitube/id6447558210)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pool free?

Pool costs $4.99, with no in-app purchases.

### Is Habitube free?

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

### Do Pool or Habitube have ads?

Neither Pool nor Habitube shows ads.

### Which is updated more often, Pool or Habitube?

Pool ships an update every 5 weeks, and Habitube every 4 weeks. Most recently, Pool was updated on October 21, 2026 and Habitube on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*