# ED Chemist vs PTR PTS Calculator

ED Chemist and PTR PTS Calculator are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ED Chemist | PTR PTS Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 35 MB | 5 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Entero Healthcare Solutions Limited](https://appshunter.io/developer/1490819168) | [Textile Infomedia](https://appshunter.io/developer/1475112908) |

## What reviewers say

### ED Chemist

[App page](https://appshunter.io/ios/app/ed-chemist/id1490819169)

**Features:** macOS Compatibility

**In-app purchases:** none


### PTR PTS Calculator

[App page](https://appshunter.io/ios/app/ptr-pts-calculator/id1632565000)

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

**In-app purchases:** none


## Frequently asked questions

### Is ED Chemist free?

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

### Is PTR PTS Calculator free?

PTR PTS Calculator is free to download, with no in-app purchases.

### Do ED Chemist or PTR PTS Calculator have ads?

Neither ED Chemist nor PTR PTS Calculator 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.*