# Pool Doctor vs Pool Plus

The clearest difference is price: Pool Plus at $0.99 against Pool Doctor's $19.99. Pool Plus also leads on rating (5.0 vs 4.4) and review sentiment (100% vs 68%). Pool Doctor's advantage is ratings volume (134 vs 2) and iOS requirement (11.0 vs 13.0). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Pool Doctor costs $19.99 and Pool Plus $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 4.4. That said, the two scores are not equally well evidenced: Pool Doctor has 134 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 68% of Pool Doctor's written reviews are positive against 100% of Pool Plus's.

Pool Doctor ships an update every 2 months, Pool Plus every 6 weeks. The most recent releases landed on September 23, 2026 and August 7, 2026 respectively.

## The numbers

| Metric | Pool Doctor | Pool Plus |
| --- | --- | --- |
| Price | $19.99 | **$0.99** |
| Rating | [4.4 (134 ratings)](https://appshunter.io/ios/app/pool-doctor/id375459618/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pool-plus/id1488707868/reviews)** |
| Number of ratings | **134** | 2 |
| Positive reviews | 67.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Best chart rank | #184 | **#174** |
| Size | 7 MB | 1 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gazzini Ventures](https://appshunter.io/developer/1503581197) | [Corey Sessions](https://appshunter.io/developer/1351154100) |

## What reviewers say

### Pool Doctor

[App page](https://appshunter.io/ios/app/pool-doctor/id375459618)

**Currently charting:** #184 Top Paid · Utilities (US App Store)

This powerful digital tool helps pool professionals and enthusiasts maintain their pools. Input your chemical readings, and it will provide precise instructions on what chemicals to add and why, supporting various pool types and units of measurement.

**Highlights:** Chemical level adjustment (chlorine, pH, alkalinity, etc.), Supports regular, salt-water, and bromine pools, Multiple unit of measurement options, Customizable ideal ranges and chemicals, Saves reading and treatment records, Langelier Index calculation, Shock calculator

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 🎯 Accurate chemical calculations and recommendations
- 💡 Customizable pool parameters and chemical selection
- 📊 Helpful for pool maintenance beginners
- 🔄 Multiple unit conversions (lbs, oz, kg, metric)

**What reviewers complain about**

- 🐛 App crashes frequently
- ❌ Email functionality doesn't work
- ⚠️ Inaccurate recommendations for some pool types
- 🔧 Settings don't persist or sync across devices
- 💸 Price increased from free to $20

**Reported bugs**

- App crashes after entering readings
- Phone keyboard won't close, preventing navigation
- Entered values change automatically (pH decreases, chlorine increases)
- Chemical settings don't save or remember user preferences
- Recommendations ignore user-specified chemical concentrations

**Requested features**

- Customizable input field order to match test kit order
- Support for Baquacil pool products
- Cyanuric acid reading support
- Ability to select specific chemical types (liquid vs powdered chlorine)
- Salt level adjustment based on salt water generator (SWG) ranges


### Pool Plus

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

**Currently charting:** #174 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 Doctor free?

Pool Doctor costs $19.99, with no in-app purchases.

### Is Pool Plus free?

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

### Which has better reviews, Pool Doctor or Pool Plus?

Pool Plus is rated higher. Pool Doctor averages 4.4 out of 5 from 134 ratings, while Pool Plus averages 5.0 from 2 ratings.

### Do Pool Doctor or Pool Plus have ads?

Neither Pool Doctor nor Pool Plus shows ads.

### Which is updated more often, Pool Doctor or Pool Plus?

Pool Doctor ships an update every 2 months, and Pool Plus every 6 weeks. Most recently, Pool Doctor was updated on September 23, 2026 and Pool Plus on August 7, 2026.

### Which is more popular, Pool Doctor or Pool Plus?

Pool Doctor currently peaks at #184 in the App Store charts, and Pool Plus at #174. Chart position reflects recent download velocity rather than total install base.

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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.*