# Pool Math by TroubleFreePool vs Pooldash

The clearest difference is price: Pool Math by TroubleFreePool at Free against Pooldash's $19.99. Pool Math by TroubleFreePool also leads on ratings volume (272 vs 11). Pooldash's advantage is rating (4.6 vs 3.7) and in-app purchases (none vs 1). On review sentiment, update cadence, ads and device support there is nothing between them.

Pool Math by TroubleFreePool is free to download; Pooldash costs $19.99 up front. Pool Math by TroubleFreePool sells 1 in-app purchase, starting at $7.99 per year. Pooldash asks for nothing beyond the download.

Pooldash holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: Pool Math by TroubleFreePool has 272 ratings behind it against 11, 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 67% of Pooldash's.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 22, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | Pool Math by TroubleFreePool | Pooldash |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | [3.7 (272 ratings)](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359/reviews) | **[4.6 (11 ratings)](https://appshunter.io/ios/app/pooldash/id1505607801/reviews)** |
| Number of ratings | **272** | 11 |
| Positive reviews | 63.4% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Freemium** | Paid |
| Size | 314 MB | 17 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [TroubleFreePool](https://appshunter.io/developer/1228819358) | [Gazzini Ventures](https://appshunter.io/developer/1503581197) |

## 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


### Pooldash

[App page](https://appshunter.io/ios/app/pooldash/id1505607801)

This app helps pool professionals and beginners calculate and manage pool water chemistry. It provides precise chemical adjustments based on your test kit readings and allows for custom formula sharing. Supports various pool types and offers flexible unit conversions.

**Highlights:** Chemical reading input, Precise chemical adjustment calculations, Custom formula sharing system, Adjustable chlorine, bromine, salt, pH, alkalinity, hardness, and cyanuric acid, Flexible unit conversions (pounds, ounces, grams, liters, gallons, scoops), Support for various pool types (chlorine, salt, bromine), Save, email, and export water chemistry history

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

**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 Pooldash free?

Pooldash costs $19.99, with no in-app purchases.

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

Pooldash is rated higher. Pool Math by TroubleFreePool averages 3.7 out of 5 from 272 ratings, while Pooldash averages 4.6 from 11 ratings.

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

Neither Pool Math by TroubleFreePool nor Pooldash shows ads.

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

Pool Math by TroubleFreePool ships an update fortnightly, and Pooldash fortnightly. Most recently, Pool Math by TroubleFreePool was updated on September 22, 2026 and Pooldash on August 16, 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.*