# Pool vs WaterLink Home

The clearest difference is price: WaterLink Home at Free against Pool's $4.99. WaterLink Home also leads on rating (4.6 vs 4.1). Pool's advantage is ratings volume (630 vs 90). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

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

WaterLink Home holds the better App Store score, 4.6 against 4.1. That said, the two scores are not equally well evidenced: Pool has 630 ratings behind it against 90, so its average is the more settled of the two. Written reviews point the same way: 21% of Pool's written reviews are positive against 28% of WaterLink Home's.

Pool ships an update every 5 weeks, WaterLink Home every 6 weeks. The most recent releases landed on November 10, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Pool | WaterLink Home |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.1 (630 ratings)](https://appshunter.io/ios/app/pool-calculator/id412876581/reviews) | **[4.6 (90 ratings)](https://appshunter.io/ios/app/waterlink-home/id1500943677/reviews)** |
| Number of ratings | **630** | 90 |
| Positive reviews | 21.0% of reviews | **28.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 17 MB | 131 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pool and Spa Resources, LLC](https://appshunter.io/developer/1358030201) | [LaMotte Chemical Products Company](https://appshunter.io/developer/975652461) |

## 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)


### WaterLink Home

[App page](https://appshunter.io/ios/app/waterlink-home/id1500943677)

This app provides detailed water analysis for pools, spas, and aquariums. It offers step-by-step treatment recommendations tailored to your water chemistry and saves historical test data with charts and graphs. Connect with local professionals for customized treatment plans.

**Highlights:** Detailed water chemistry analysis, Customized treatment recommendations, Historical test data tracking, Multiple supported test methods, Chemical and dosage customization, Professional connection via Homelinks

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

**In-app purchases:** none


## Frequently asked questions

### Is Pool free?

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

### Is WaterLink Home free?

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

### Which has better reviews, Pool or WaterLink Home?

WaterLink Home is rated higher. Pool averages 4.1 out of 5 from 630 ratings, while WaterLink Home averages 4.6 from 90 ratings.

### Do Pool or WaterLink Home have ads?

Neither Pool nor WaterLink Home shows ads.

### Which is updated more often, Pool or WaterLink Home?

Pool ships an update every 5 weeks, and WaterLink Home every 6 weeks. Most recently, Pool was updated on November 10, 2026 and WaterLink Home on November 11, 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.*