# Pool Water Calculator vs Stoic Study

The clearest difference is price: Stoic Study at Free against Pool Water Calculator's $4.99. Stoic Study also leads on update cadence (every 2 days vs fortnightly) and rating (5.0 vs 4.6). Pool Water Calculator's advantage is in-app purchases (none vs 2) and ratings volume (94 vs 2). On ads, device support and iOS requirement there is nothing between them.

Stoic Study is free to download; Pool Water Calculator costs $4.99 up front. Stoic Study sells 2 one-off in-app purchases. Pool Water Calculator asks for nothing beyond the download.

Stoic Study 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, Stoic Study every 2 days. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Pool Water Calculator | Stoic Study |
| --- | --- | --- |
| 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/stoic-study/id6760505845/reviews)** |
| Number of ratings | **94** | 2 |
| Positive reviews | 76.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | **Free** | Freemium |
| Best chart rank | **#182** | — |
| Size | 30 MB | 34 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ingenio Productions LLC](https://appshunter.io/developer/1249919346) | [Nathan Finch](https://appshunter.io/developer/1884738673) |

## What reviewers say

### Pool Water Calculator

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

**Currently charting:** #182 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


### Stoic Study

[App page](https://appshunter.io/ios/app/stoic-study/id6760505845)

Access the complete works of Stoic philosophers in original languages and translations, with in-depth word study tools. Engage in structured challenges and daily reflections to deepen your understanding and practice of Stoicism. Works offline and requires no account.

**Highlights:** Complete works of Stoic authors, Original Greek and Latin texts, Side-by-side English translations, Click-any-word study tools, Full-text search, Structured 21-day challenges, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Introductory Lifetime Offer | $4.99 | one-time |
| Stoic Study Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Pool Water Calculator free?

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

### Is Stoic Study free?

Stoic Study is free to download, with in-app purchases available.

### Which has better reviews, Pool Water Calculator or Stoic Study?

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

### Do Pool Water Calculator or Stoic Study have ads?

Neither Pool Water Calculator nor Stoic Study shows ads.

### Which is updated more often, Pool Water Calculator or Stoic Study?

Pool Water Calculator ships an update fortnightly, and Stoic Study every 2 days. Most recently, Pool Water Calculator was updated on October 15, 2026 and Stoic Study 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.*