# Pool Chemistry vs PoolBuddy

The clearest difference is in-app purchases: PoolBuddy at none against Pool Chemistry's 3. PoolBuddy also leads on update cadence (every 4 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Pool Chemistry sells 3 in-app purchases, starting at $4.99 per month. PoolBuddy asks for nothing beyond the download.

Pool Chemistry ships an update every 6 weeks, PoolBuddy every 4 days. The most recent releases landed on October 20, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Pool Chemistry | PoolBuddy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Size | 9 MB | 3 MB |
| Requires iOS | 18 | **17.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Karol Jaworski](https://appshunter.io/developer/1799974477) | [Netknow](https://appshunter.io/developer/398337114) |

## What reviewers say

### Pool Chemistry

[App page](https://appshunter.io/ios/app/pool-chemistry-chlor/id6759573566)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chlor Pro Monthly | $4.99 | per month |
| Chlor Pro Yearly | $39.99 | per year |
| Chlor Pro Yearly Promo | $39.99 | per year |


### PoolBuddy

[App page](https://appshunter.io/ios/app/poolbuddy-pool-assistant/id6786665207)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Pool Chemistry free?

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

### Is PoolBuddy free?

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

### Do Pool Chemistry or PoolBuddy have ads?

Neither Pool Chemistry nor PoolBuddy shows ads.

### Which is updated more often, Pool Chemistry or PoolBuddy?

Pool Chemistry ships an update every 6 weeks, and PoolBuddy every 4 days. Most recently, Pool Chemistry was updated on October 20, 2026 and PoolBuddy on October 22, 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.*