# Pool Water Calculator vs CoterieShare

The clearest difference is price: CoterieShare at Free against Pool Water Calculator's $4.99. CoterieShare also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 77%). Pool Water Calculator's advantage is ratings volume (94 vs 4) and iOS requirement (13.0 vs 15.1). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

CoterieShare 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.

CoterieShare 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 4, so its average is the more settled of the two. Written reviews point the same way: 77% of Pool Water Calculator's written reviews are positive against 100% of CoterieShare's.

Pool Water Calculator ships an update fortnightly, CoterieShare every 9 days. The most recent releases landed on October 11, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Pool Water Calculator | CoterieShare |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.6 (94 ratings)](https://appshunter.io/ios/app/pool-water-calculator/id1249919347/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/coterieshare/id6782431263/reviews)** |
| Number of ratings | **94** | 4 |
| Positive reviews | 76.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Free | Free |
| Size | 30 MB | 43 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ingenio Productions LLC](https://appshunter.io/developer/1249919346) | [Coterie Share, LLC](https://appshunter.io/developer/6782431265) |

## What reviewers say

### Pool Water Calculator

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

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


### CoterieShare

[App page](https://appshunter.io/ios/app/coterieshare/id6782431263)

Coordinate everyday errands with trusted family, friends, or neighbors. Share your shopping trips live to receive requests, or post your needs to a private board for your circle to fulfill. It's about acts of service, not delivery fees.

**Highlights:** Live errand sharing with real-time requests, Private circles for trusted contacts, Post needs to a shared Coterie Board, Urgent and anytime request options, Photo proof of delivery, Weekly gratitude recaps

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

**In-app purchases:** none


## Frequently asked questions

### Is Pool Water Calculator free?

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

### Is CoterieShare free?

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

### Which has better reviews, Pool Water Calculator or CoterieShare?

CoterieShare is rated higher. Pool Water Calculator averages 4.6 out of 5 from 94 ratings, while CoterieShare averages 5.0 from 4 ratings.

### Do Pool Water Calculator or CoterieShare have ads?

Neither Pool Water Calculator nor CoterieShare shows ads.

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

Pool Water Calculator ships an update fortnightly, and CoterieShare every 9 days. Most recently, Pool Water Calculator was updated on October 11, 2026 and CoterieShare on September 30, 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.*