# Pool Math by TroubleFreePool vs PoolSync

The clearest difference is review sentiment: Pool Math by TroubleFreePool at 63% against PoolSync's 20%. Pool Math by TroubleFreePool also leads on rating (3.7 vs 2.1) and update cadence (fortnightly vs every 2 months). PoolSync's advantage is in-app purchases (none vs 1). On price, ads, device support 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. PoolSync asks for nothing beyond the download.

Pool Math by TroubleFreePool holds the better App Store score, 3.7 against 2.1. Both are backed by a comparable volume of ratings — 272 and 64 respectively. Written reviews point the same way: 63% of Pool Math by TroubleFreePool's written reviews are positive against 20% of PoolSync's.

Pool Math by TroubleFreePool ships an update fortnightly, PoolSync every 2 months. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Pool Math by TroubleFreePool | PoolSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (272 ratings)](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359/reviews)** | [2.1 (64 ratings)](https://appshunter.io/ios/app/poolsync/id1498848116/reviews) |
| Number of ratings | **272** | 64 |
| 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 | 39 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TroubleFreePool](https://appshunter.io/developer/1228819358) | [AquaCal AutoPilot, Inc](https://appshunter.io/developer/1498848115) |

## 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


### PoolSync

[App page](https://appshunter.io/ios/app/poolsync/id1498848116)

Control your pool equipment remotely from your iOS device. Adjust settings like temperature and sanitization, create schedules, and receive important alerts. Stay connected to your pool's status whether you're at home or away.

**Highlights:** Remote equipment control, Adjust heat pump set point, Change sanitization level, Create schedules, Receive alerts, Monitor pool status

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Controls pool features remotely
- 👍 Can monitor chlorinator and heat pump
- 👍 App improved over time (recent positive)
- 👍 Easy to set up (recent positive)
- 👍 Controls pumps, heater, valves, spa, lights

**What reviewers complain about**

- 🐛 Frequent disconnection issues
- 🐛 "Unit does not appear online" error
- 🐛 Basic functionality, minimal details
- 🐛 Poor customer service/no response
- 🐛 Wi-Fi password issues (spaces not allowed)

**Reported bugs**

- Connection issues: "cloud connected" but "unit does not appear online"
- Wi-Fi connection fails even when close to router
- App gets stuck in setup mode, doesn't find heater/chiller (Error 1012)
- Cannot input spaces in Wi-Fi password
- Bug in verification screen preventing code input

**Requested features**

- Add temperature history graph
- Add notifications for heater issues
- Integrate relay contacts for heating priority
- Allow spaces in Wi-Fi passwords
- Add Alexa, Google, HomeKit, IFTTT integration


## Frequently asked questions

### Is Pool Math by TroubleFreePool free?

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

### Is PoolSync free?

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

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

Pool Math by TroubleFreePool is rated higher. Pool Math by TroubleFreePool averages 3.7 out of 5 from 272 ratings, while PoolSync averages 2.1 from 64 ratings.

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

Neither Pool Math by TroubleFreePool nor PoolSync shows ads.

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

Pool Math by TroubleFreePool ships an update fortnightly, and PoolSync every 2 months. Most recently, Pool Math by TroubleFreePool was updated on October 7, 2026 and PoolSync on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*