# Pool Math by TroubleFreePool vs MyDolphin Plus

The clearest difference is review sentiment: Pool Math by TroubleFreePool at 63% against MyDolphin Plus's 20%. Pool Math by TroubleFreePool also leads on update cadence (fortnightly vs every 2 months). MyDolphin Plus's advantage is rating (4.7 vs 3.7) and in-app purchases (none vs 1). On price, ads and device support 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. MyDolphin Plus asks for nothing beyond the download.

MyDolphin Plus holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: MyDolphin Plus has 8.9K ratings behind it against 272, so its average is the more settled of the two. Written reviews complicate that: 63% of Pool Math by TroubleFreePool's written reviews are positive against 20% of MyDolphin Plus's, so the app with the better star average is not the one people write more warmly about.

Pool Math by TroubleFreePool ships an update fortnightly, MyDolphin Plus every 2 months. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Pool Math by TroubleFreePool | MyDolphin Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (272 ratings)](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359/reviews) | **[4.7 (8.9K ratings)](https://appshunter.io/ios/app/mydolphin-plus/id1372538627/reviews)** |
| Number of ratings | 272 | **8.9K** |
| Positive reviews | **63.4% of reviews** | 19.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 314 MB | 108 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TroubleFreePool](https://appshunter.io/developer/1228819358) | [Maytronics](https://appshunter.io/developer/664564907) |

## 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


### MyDolphin Plus

[App page](https://appshunter.io/ios/app/mydolphin-plus/id1372538627)

Control your robotic pool cleaner remotely via Wi-Fi or Bluetooth. Schedule cleaning cycles, use voice commands, and even create custom LED light shows. Enjoy a pristine pool with effortless management.

**Highlights:** Remote control from anywhere, Voice control via Siri, Schedule cleaning modes, Initiate robot ascent, Name your robot, Create LED light shows

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ⚡ Fast cleaning performance
- 🤖 Efficient robot operation
- 🧹 Excellent pool cleaning
- 📱 Convenient app control
- 🕰️ Useful scheduling options

**What reviewers complain about**

- 🐛 Frequent connectivity issues
- 📵 Unreliable app functionality
- 🔁 Constant need to re-login/reconnect
- 🕰️ Slow app response times
- 🚫 Limited app features/customization

**Reported bugs**

- App freezes and crashes frequently
- Inability to connect to robot via app
- Inconsistent app performance after updates
- Scheduled cleaning cycles not working as expected
- Manual control features not functioning properly

**Requested features**

- Improved app stability and reliability
- More flexible scheduling options
- Ability to monitor cleaning history remotely
- Enhanced manual control/navigation in app
- Automatic notifications for completed cycles


## Frequently asked questions

### Is Pool Math by TroubleFreePool free?

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

### Is MyDolphin Plus free?

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

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

MyDolphin Plus is rated higher. Pool Math by TroubleFreePool averages 3.7 out of 5 from 272 ratings, while MyDolphin Plus averages 4.7 from 8.9K ratings.

### Do Pool Math by TroubleFreePool or MyDolphin Plus have ads?

Neither Pool Math by TroubleFreePool nor MyDolphin Plus shows ads.

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

Pool Math by TroubleFreePool ships an update fortnightly, and MyDolphin Plus every 2 months. Most recently, Pool Math by TroubleFreePool was updated on September 22, 2026 and MyDolphin Plus on September 23, 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.*