# Pool Shark H2O Pro vs Pool Plus

The clearest difference is price: Pool Shark H2O Pro at Free against Pool Plus's $0.99. Pool Shark H2O Pro also leads on ratings volume (219 vs 2). Pool Plus's advantage is rating (5.0 vs 4.7) and update cadence (every 6 weeks vs every 5 months). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Pool Shark H2O Pro is free to download; Pool Plus costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pool Plus holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Pool Shark H2O Pro has 219 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Pool Shark H2O Pro ships an update every 5 months, Pool Plus every 6 weeks. The most recent releases landed on October 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Pool Shark H2O Pro | Pool Plus |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.7 (219 ratings)](https://appshunter.io/ios/app/pool-shark-h2o-pro/id1467944894/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pool-plus/id1488707868/reviews)** |
| Number of ratings | **219** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#195** |
| Size | 4 MB | 1 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pool Shark H2O, Inc.](https://appshunter.io/developer/1143122519) | [Corey Sessions](https://appshunter.io/developer/1351154100) |

## What reviewers say

### Pool Shark H2O Pro

[App page](https://appshunter.io/ios/app/pool-shark-h2o-pro/id1467944894)

This app simplifies pool and spa record-keeping and maintenance with compliant logs. It offers instant water analysis and chemical dosage instructions to reduce liability and maintain clean water.

**Highlights:** Health Department Compliant Logs, Instant Water Analysis, Chemical Dosage Instructions, Bluetooth Integration with LaMotte WaterLink Spin Touch, Automated Testing Reminders, Location-Based Pool Search, Tamper-Proof Electronic Logs

**In-app purchases:** none


### Pool Plus

[App page](https://appshunter.io/ios/app/pool-plus/id1488707868)

**Currently charting:** #195 Top Paid · Utilities (US App Store)

Easily calculate the water volume of your swimming pool in gallons. This tool provides a quick and straightforward method for estimating pool capacity.

**Highlights:** Estimate pool water volume, Calculate in gallons, Quick and easy to use, Designed for swimming pools

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

**In-app purchases:** none


## Frequently asked questions

### Is Pool Shark H2O Pro free?

Pool Shark H2O Pro is free to download, with no in-app purchases.

### Is Pool Plus free?

Pool Plus costs $0.99, with no in-app purchases.

### Which has better reviews, Pool Shark H2O Pro or Pool Plus?

Pool Plus is rated higher. Pool Shark H2O Pro averages 4.7 out of 5 from 219 ratings, while Pool Plus averages 5.0 from 2 ratings.

### Do Pool Shark H2O Pro or Pool Plus have ads?

Neither Pool Shark H2O Pro nor Pool Plus shows ads.

### Which is updated more often, Pool Shark H2O Pro or Pool Plus?

Pool Shark H2O Pro ships an update every 5 months, and Pool Plus every 6 weeks. Most recently, Pool Shark H2O Pro was updated on October 7, 2026 and Pool Plus on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*