# T vs Pool Chemistry

The clearest difference is in-app purchases: T at none against Pool Chemistry's 3. T also leads on iOS requirement (11.0 vs 18). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | T | Pool Chemistry |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Size | 108 MB | 9 MB |
| Requires iOS | **11.0** | 18 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jhenell Meneses](https://appshunter.io/developer/1734074202) | [Karol Jaworski](https://appshunter.io/developer/1799974477) |

## What reviewers say

### T

[App page](https://appshunter.io/ios/app/t-auto-source/id6737436184)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is T free?

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

### Is Pool Chemistry free?

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

### Do T or Pool Chemistry have ads?

Neither T nor Pool Chemistry shows ads.

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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.*