# Pool Math by TroubleFreePool vs AquaChek Connect

The clearest difference is review sentiment: Pool Math by TroubleFreePool at 63% against AquaChek Connect's 10%. Pool Math by TroubleFreePool also leads on rating (3.7 vs 3.2) and update cadence (fortnightly vs every 3 months). AquaChek Connect's advantage is in-app purchases (none vs 1) and ratings volume (1.2K vs 272). On price, ads, monetization model 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. AquaChek Connect asks for nothing beyond the download.

Pool Math by TroubleFreePool holds the better App Store score, 3.7 against 3.2. Both are backed by a comparable volume of ratings — 272 and 1.2K respectively. Written reviews point the same way: 63% of Pool Math by TroubleFreePool's written reviews are positive against 10% of AquaChek Connect's.

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

## The numbers

| Metric | Pool Math by TroubleFreePool | AquaChek Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (272 ratings)](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359/reviews)** | [3.2 (1.2K ratings)](https://appshunter.io/ios/app/aquachek-connect/id1510985740/reviews) |
| Number of ratings | 272 | **1.2K** |
| Positive reviews | **63.4% of reviews** | 9.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 314 MB | 35 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TroubleFreePool](https://appshunter.io/developer/1228819358) | [Hach Company](https://appshunter.io/developer/625107878) |

## 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


### AquaChek Connect

[App page](https://appshunter.io/ios/app/aquachek-connect/id1510985740)

This app uses photo capture technology to scan test strips and provide personalized pool water treatment recommendations. It offers features like test result history, a water volume calculator, and maintenance reminders to simplify pool care.

**Highlights:** Photo capture test strip scanning, Personalized treatment recommendations, Test result history, Water volume calculator, Maintenance reminders, Email/print test results

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and accurate test
- 💡 Helpful instructions and recommendations
- 🚀 Makes pool maintenance easy

**What reviewers complain about**

- 🐛 Camera doesn't focus or capture strip properly
- 🐛 Inconsistent and inaccurate readings
- 🐛 App crashes or doesn't work as expected
- 🐛 Requires perfect alignment for photo capture
- 🐛 Manual entry option also doesn't work

**Reported bugs**

- Camera doesn't work on newer iPhones
- App crashes when trying to manually enter data
- Keeps prompting for update that doesn't exist
- Deletes user data after updates

**Requested features**

- Add metric unit support
- Improve photo capture functionality
- Provide more granular data entry options
- Bring back previous version's features


## Frequently asked questions

### Is Pool Math by TroubleFreePool free?

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

### Is AquaChek Connect free?

AquaChek Connect is free to download, with no in-app purchases.

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

Pool Math by TroubleFreePool is rated higher. Pool Math by TroubleFreePool averages 3.7 out of 5 from 272 ratings, while AquaChek Connect averages 3.2 from 1.2K ratings.

### Do Pool Math by TroubleFreePool or AquaChek Connect have ads?

Neither Pool Math by TroubleFreePool nor AquaChek Connect shows ads.

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

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