# Pool Chem Calculator vs PoolMr

The clearest difference is rating: Pool Chem Calculator at 4.3 against PoolMr's 1.0. Pool Chem Calculator also leads on review sentiment (36% vs 0%) and update cadence (every 6 days vs every 6 months). PoolMr's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Pool Chem Calculator sells 1 in-app purchase, starting at $1.99 per month. PoolMr asks for nothing beyond the download.

Pool Chem Calculator holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Pool Chem Calculator has 36 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 36% of Pool Chem Calculator's written reviews are positive against 0% of PoolMr's.

Pool Chem Calculator ships an update every 6 days, PoolMr every 6 months. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Pool Chem Calculator | PoolMr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (36 ratings)](https://appshunter.io/ios/app/pool-chem-calculator/id1453351222/reviews)** | [1.0 (6 ratings)](https://appshunter.io/ios/app/poolmr/id6502499467/reviews) |
| Number of ratings | **36** | 6 |
| Positive reviews | **36.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 6 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 113 MB | 180 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Gunter Business Solutions Inc](https://appshunter.io/developer/1453351221) | [Wuhan Smartda Electronic Technology Co Ltd.](https://appshunter.io/developer/1540049336) |

## What reviewers say

### Pool Chem Calculator

[App page](https://appshunter.io/ios/app/pool-chem-calculator/id1453351222)

This app helps manage pool chemistry with 24 specialized calculators for dosing, pH, and more. It features a customizable maintenance calendar, equipment tracking, and easy report sharing for up to 100 pools. Ideal for maintaining a clean and swim-ready pool.

**Highlights:** 24 precision pool chemical calculators, Customizable maintenance calendar with notifications, Equipment tracking and management, Multi-user pool sharing, Professional report builder, Smart pool route mapping

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Pool Subscription | $1.99 | per month |


### PoolMr

[App page](https://appshunter.io/ios/app/poolmr/id6502499467)

Control and monitor various smart home IoT devices, including pool cleaners and kitchen appliances. Experience the convenience of technology for an easier lifestyle.

**Highlights:** Connects to IoT devices, Control smart home devices, Monitor device status, Manage pool cleaning robots, Manage smart sweeping robots, Manage smart kitchen appliances

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pool Chem Calculator free?

Pool Chem Calculator is free to download, with in-app purchases available.

### Is PoolMr free?

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

### Which has better reviews, Pool Chem Calculator or PoolMr?

Pool Chem Calculator is rated higher. Pool Chem Calculator averages 4.3 out of 5 from 36 ratings, while PoolMr averages 1.0 from 6 ratings.

### Do Pool Chem Calculator or PoolMr have ads?

Pool Chem Calculator shows ads; PoolMr does not.

### Which is updated more often, Pool Chem Calculator or PoolMr?

Pool Chem Calculator ships an update every 6 days, and PoolMr every 6 months. Most recently, Pool Chem Calculator was updated on October 6, 2026 and PoolMr on October 9, 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.*