# Pool Water Calculator vs Intermatic Optimizer

The clearest difference is price: Intermatic Optimizer at Free against Pool Water Calculator's $4.99. Intermatic Optimizer also leads on rating (5.0 vs 4.6). Pool Water Calculator's advantage is ratings volume (94 vs 2) and chart position (#107 vs unranked). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Intermatic Optimizer is free to download; Pool Water Calculator costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Intermatic Optimizer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Pool Water Calculator has 94 ratings behind it against 2, so its average is the more settled of the two.

Pool Water Calculator ships an update fortnightly, Intermatic Optimizer every 9 days. The most recent releases landed on October 15, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Pool Water Calculator | Intermatic Optimizer |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.6 (94 ratings)](https://appshunter.io/ios/app/pool-water-calculator/id1249919347/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/intermatic-optimizer/id1659033746/reviews)** |
| Number of ratings | **94** | 2 |
| Positive reviews | 76.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Free | Free |
| Best chart rank | **#107** | — |
| Size | 30 MB | 80 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ingenio Productions LLC](https://appshunter.io/developer/1249919346) | [Intermatic LLC](https://appshunter.io/developer/911531287) |

## What reviewers say

### Pool Water Calculator

[App page](https://appshunter.io/ios/app/pool-water-calculator/id1249919347)

**Currently charting:** #107 Top Paid · Lifestyle (US App Store)

This app helps you precisely balance and maintain your pool or spa water chemistry. It offers a chemistry calculator, pool volume measurement, and detailed data logging with visual trend analysis. Get tailored recommendations and manage multiple water profiles with ease.

**Highlights:** Chemistry calculator for precise chemical dosages, Pool volume calculator, Data logging for test results and additions, Visual trend graphs for water chemistry, Personalized chemical recommendations, Manage multiple pool/spa profiles, Broad chemical support

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

**In-app purchases:** none


### Intermatic Optimizer

[App page](https://appshunter.io/ios/app/intermatic-optimizer/id1659033746)

Control your pool and spa automation system remotely from your mobile device. Monitor and track energy usage for your pool equipment on a daily, weekly, or monthly basis. Manage multiple pools and spas with an intuitive interface.

**Highlights:** Remote pool and spa control, Energy usage monitoring, Multi-pool management, Advanced iOS interface, Anytime, anywhere access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pool Water Calculator free?

Pool Water Calculator costs $4.99, with no in-app purchases.

### Is Intermatic Optimizer free?

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

### Which has better reviews, Pool Water Calculator or Intermatic Optimizer?

Intermatic Optimizer is rated higher. Pool Water Calculator averages 4.6 out of 5 from 94 ratings, while Intermatic Optimizer averages 5.0 from 2 ratings.

### Do Pool Water Calculator or Intermatic Optimizer have ads?

Neither Pool Water Calculator nor Intermatic Optimizer shows ads.

### Which is updated more often, Pool Water Calculator or Intermatic Optimizer?

Pool Water Calculator ships an update fortnightly, and Intermatic Optimizer every 9 days. Most recently, Pool Water Calculator was updated on October 15, 2026 and Intermatic Optimizer on September 28, 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.*