# m/z EPA CompTox vs GeoChemPro MRO

The clearest difference is iOS requirement: m/z EPA CompTox at 6.0 against GeoChemPro MRO's 13.4. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | m/z EPA CompTox | GeoChemPro MRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mz-epa-comptox/id1148436331/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | Free | — |
| Size | 129 MB | 49 MB |
| Requires iOS | **6.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kirill Blinov](https://appshunter.io/developer/630833420) | [Z LAB Studio LLC](https://appshunter.io/developer/1689622581) |

## What reviewers say

### m/z EPA CompTox

[App page](https://appshunter.io/ios/app/mz-epa-comptox/id1148436331)

Search a vast database of chemical structures using exact mass (m/z). This tool provides instant access to over 700,000 chemical structures, making it a valuable resource for researchers and chemists.

**Highlights:** Search by exact mass (m/z), Access EPA CompTox database, Over 700,000 chemical structures, Instant search functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### GeoChemPro MRO

[App page](https://appshunter.io/ios/app/geochempro-mro/id6476800838)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is m/z EPA CompTox free?

m/z EPA CompTox is free to download, with no in-app purchases.

### Is GeoChemPro MRO free?

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

### Do m/z EPA CompTox or GeoChemPro MRO have ads?

Neither m/z EPA CompTox nor GeoChemPro MRO shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*