# Pool Math by TroubleFreePool vs Pool Log

The clearest difference is rating: Pool Log at 4.8 against Pool Math by TroubleFreePool's 3.6. Pool Log also leads on monetization model (free vs freemium). Pool Math by TroubleFreePool's advantage is ratings volume (287 vs 8) and iOS requirement (15.0 vs 26.0). On price, update cadence, ads and in-app purchases 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 and Pool Log sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Pool Log holds the better App Store score, 4.8 against 3.6. That said, the two scores are not equally well evidenced: Pool Math by TroubleFreePool has 287 ratings behind it against 8, so its average is the more settled of the two.

Pool Math by TroubleFreePool ships an update fortnightly, Pool Log every 4 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Pool Math by TroubleFreePool | Pool Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (287 ratings)](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359/reviews) | **[4.8 (8 ratings)](https://appshunter.io/ios/app/pool-log/id6744295287/reviews)** |
| Number of ratings | **287** | 8 |
| Positive reviews | 63.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Freemium | **Free** |
| Size | 314 MB | 14 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [TroubleFreePool](https://appshunter.io/developer/1228819358) | [Michael Holloway](https://appshunter.io/developer/877302832) |

## 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


### Pool Log

[App page](https://appshunter.io/ios/app/pool-log/id6744295287)

This app provides precise chemical dosing instructions for pools and spas based on your test results. It tracks multiple water bodies, integrates local weather data, and offers advanced features like SLAM mode for algae and CSI calculations. All data is stored locally for privacy.

**Highlights:** Precise chemical dosing instructions, Manages multiple pools and spas, Weather-aware test result tracking, SLAM mode for algae treatment, Calcite Saturation Index (CSI) calculation, Chemical addition logging, Maintenance task tracking

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $0.99 | per month |
| Annual Plan | $7.99 | per year |


## Frequently asked questions

### Is Pool Math by TroubleFreePool free?

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

### Is Pool Log free?

Pool Log is free to download, with in-app purchases available.

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

Pool Log is rated higher. Pool Math by TroubleFreePool averages 3.6 out of 5 from 287 ratings, while Pool Log averages 4.8 from 8 ratings.

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

Neither Pool Math by TroubleFreePool nor Pool Log shows ads.

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

Pool Math by TroubleFreePool ships an update fortnightly, and Pool Log every 4 weeks. Most recently, Pool Math by TroubleFreePool was updated on October 24, 2026 and Pool Log on October 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.*