# Pool Math by TroubleFreePool vs Clyr Pool

The clearest difference is rating: Clyr Pool at 4.3 against Pool Math by TroubleFreePool's 3.7. Clyr Pool also leads on review sentiment (100% vs 63%) and in-app purchases (none vs 1). Pool Math by TroubleFreePool's advantage is ads (none vs shown) and update cadence (fortnightly vs every 3 months). On price and iOS requirement there is nothing between them.

Both are free to download. Pool Math by TroubleFreePool sells 1 in-app purchase, starting at $7.99 per year. Clyr Pool asks for nothing beyond the download.

Clyr Pool holds the better App Store score, 4.3 against 3.7. That said, the two scores are not equally well evidenced: Pool Math by TroubleFreePool has 272 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 63% of Pool Math by TroubleFreePool's written reviews are positive against 100% of Clyr Pool's.

Pool Math by TroubleFreePool ships an update fortnightly, Clyr Pool every 3 months. The most recent releases landed on September 22, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | Pool Math by TroubleFreePool | Clyr Pool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (272 ratings)](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359/reviews) | **[4.3 (7 ratings)](https://appshunter.io/ios/app/clyr-pool/id6459477082/reviews)** |
| Number of ratings | **272** | 7 |
| Positive reviews | 63.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Freemium | **Ad-supported** |
| Size | 314 MB | 72 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TroubleFreePool](https://appshunter.io/developer/1228819358) | [A I KETO INC](https://appshunter.io/developer/1452358531) |

## What reviewers say

### Pool Math by TroubleFreePool

[App page](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359)

Easily manage your swimming pool's water chemistry by tracking key levels like chlorine and pH. This app calculates the precise amounts of chemicals needed to maintain clear, algae-free water, offering a cost-effective alternative to pool store advice.

**Highlights:** Chemical level calculators (pH, Chlorine, Alkalinity, etc.), Track pool maintenance tasks, Log chemical additions, Weather condition tracking, Chemical addition effect calculations, Bleach price comparison, Data backup and export

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pool Math Premium Subscription | $7.99 | per year |

**What reviewers like**

- 💎 Excellent for maintaining a clean, balanced pool
- 🔍 Comprehensive tracking of test results and chemical additions
- 🧠 Helpful recommendations for chemical adjustments
- ⚙️ Useful features like SLAM mode and timeline
- 🤖 Automatic weather data logging

**What reviewers complain about**

- 🐛 Issues with data syncing and backup
- 🤔 Unintuitive interface and navigation
- 💰 Subscription model and lack of one-time purchase
- 🚫 Limited support for non-chlorine sanitizers and spa-specific options
- 🔄 Bugs with chemical addition logging and target value retention

**Reported bugs**

- Subscription issues and inability to restore purchases
- App crashes and freezes on certain actions
- Incorrect chemical recommendations and calculations
- Disappearing historical data after updates

**Requested features**

- Custom target ranges and alerts
- Ability to log non-standard chemical additions
- Export options for data analysis
- Apple Watch integration
- Improved user guidance and on-boarding


### Clyr Pool

[App page](https://appshunter.io/ios/app/clyr-pool/id6459477082)

This application assists in managing the Clyr Ecosystem. It provides control over connected devices and features within the ecosystem.

**Highlights:** Ecosystem control, Device management, Feature access

**In-app purchases:** none


## Frequently asked questions

### Is Pool Math by TroubleFreePool free?

Pool Math by TroubleFreePool is free to download, with in-app purchases available.

### Is Clyr Pool free?

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

### Which has better reviews, Pool Math by TroubleFreePool or Clyr Pool?

Clyr Pool is rated higher. Pool Math by TroubleFreePool averages 3.7 out of 5 from 272 ratings, while Clyr Pool averages 4.3 from 7 ratings.

### Do Pool Math by TroubleFreePool or Clyr Pool have ads?

Clyr Pool shows ads; Pool Math by TroubleFreePool does not.

### Which is updated more often, Pool Math by TroubleFreePool or Clyr Pool?

Pool Math by TroubleFreePool ships an update fortnightly, and Clyr Pool every 3 months. Most recently, Pool Math by TroubleFreePool was updated on September 22, 2026 and Clyr Pool on August 24, 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.*