# Pool Math by TroubleFreePool vs Nut Identifier

The clearest difference is review sentiment: Pool Math by TroubleFreePool at 63% against Nut Identifier's 0%. Pool Math by TroubleFreePool also leads on rating (3.7 vs 3.0) and monetization model (freemium vs subscription). Nut Identifier's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases 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 and Nut Identifier sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Pool Math by TroubleFreePool holds the better App Store score, 3.7 against 3.0. That said, the two scores are not equally well evidenced: Pool Math by TroubleFreePool has 272 ratings behind it against 2, 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 0% of Nut Identifier's.

## The numbers

| Metric | Pool Math by TroubleFreePool | Nut Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (272 ratings)](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/nut-identifier-nut-id/id1665114466/reviews) |
| Number of ratings | **272** | 2 |
| Positive reviews | **63.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | **Freemium** | Subscription |
| Size | 314 MB | 7 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) | [Suleyman Can Ahsen](https://appshunter.io/developer/1664408820) |

## 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


### Nut Identifier

[App page](https://appshunter.io/ios/app/nut-identifier-nut-id/id1665114466)

Instantly identify nuts from photos with high accuracy using a vast database. Unlock full access with a monthly subscription to explore all features.

**Highlights:** Instant photo processing, High accuracy identification, Extensive nut database, Monthly subscription for full access

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nut Identifier Full Access | $9.99 | per month |


## Frequently asked questions

### Is Pool Math by TroubleFreePool free?

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

### Is Nut Identifier free?

Nut Identifier is free to download, with in-app purchases available.

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

Pool Math by TroubleFreePool is rated higher. Pool Math by TroubleFreePool averages 3.7 out of 5 from 272 ratings, while Nut Identifier averages 3.0 from 2 ratings.

### Do Pool Math by TroubleFreePool or Nut Identifier have ads?

Neither Pool Math by TroubleFreePool nor Nut Identifier shows ads.

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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.*