# Pool Chem Calculator vs Pool Notes

The clearest difference is review sentiment: Pool Notes at 100% against Pool Chem Calculator's 36%. Pool Notes also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 1). Pool Chem Calculator's advantage is ratings volume (40 vs 1) and update cadence (weekly vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Pool Chem Calculator sells 1 in-app purchase, starting at $1.99 per month. Pool Notes asks for nothing beyond the download.

Pool Notes holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Pool Chem Calculator has 40 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 36% of Pool Chem Calculator's written reviews are positive against 100% of Pool Notes's.

Pool Chem Calculator ships an update weekly, Pool Notes fortnightly. The most recent releases landed on October 26, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Pool Chem Calculator | Pool Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (40 ratings)](https://appshunter.io/ios/app/pool-chem-calculator/id1453351222/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pool-notes-pool-care/id6788173453/reviews)** |
| Number of ratings | **40** | 1 |
| Positive reviews | 36.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 118 MB | 37 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gunter Business Solutions Inc](https://appshunter.io/developer/1453351221) | [JONATHON TIMOTHY MORTON](https://appshunter.io/developer/6783081553) |

## What reviewers say

### Pool Chem Calculator

[App page](https://appshunter.io/ios/app/pool-chem-calculator/id1453351222)

This app helps manage pool chemistry with 24 specialized calculators for dosing, pH, and more. It features a customizable maintenance calendar, equipment tracking, and easy report sharing for up to 100 pools. Ideal for maintaining a clean and swim-ready pool.

**Highlights:** 24 precision pool chemical calculators, Customizable maintenance calendar with notifications, Equipment tracking and management, Multi-user pool sharing, Professional report builder, Smart pool route mapping

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Pool Subscription | $1.99 | per month |


### Pool Notes

[App page](https://appshunter.io/ios/app/pool-notes-pool-care/id6788173453)

This app simplifies pool maintenance by converting water test readings into precise chemical dosage instructions. It automatically adjusts targets based on stabilizer levels and offers guided algae treatment. All data is stored locally on your device for privacy.

**Highlights:** Precise chemical dosage instructions, Automatic chlorine target adjustment, Trend tracking over time, Test reminders, Guided algae treatment, Local data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is Pool Chem Calculator free?

Pool Chem Calculator is free to download, with in-app purchases available.

### Is Pool Notes free?

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

### Which has better reviews, Pool Chem Calculator or Pool Notes?

Pool Notes is rated higher. Pool Chem Calculator averages 4.4 out of 5 from 40 ratings, while Pool Notes averages 5.0 from 1 ratings.

### Do Pool Chem Calculator or Pool Notes have ads?

Pool Chem Calculator shows ads; Pool Notes does not.

### Which is updated more often, Pool Chem Calculator or Pool Notes?

Pool Chem Calculator ships an update weekly, and Pool Notes fortnightly. Most recently, Pool Chem Calculator was updated on October 26, 2026 and Pool Notes on October 6, 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.*