# m/z EPA CompTox

> Search EPA CompTox chemical structures by exact mass. (iPhone/iPad app by Kirill Blinov.)

- Source: https://appshunter.io/ios/app/mz-epa-comptox/id1148436331 (this page in markdown: same URL + `.md`)
- Developer: [Kirill Blinov](https://appshunter.io/developer/630833420)
- Category: Productivity, Reference
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 6.0 · 129 MB
- Languages: American English
- Released: 2016-09-17
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mz-epa-comptox/id1148436331/reviews.md

## What is m/z EPA CompTox?

Find chemical structure by exact mass (m/z) in EPA CompTox structures. 
Instant search in a database of more than 700,000 structures.

## Key features

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

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/mz-epa-comptox/id1148436331/reviews.md

### 5/5 — CompTox Dashboard data

*2016-09-14*

I am happy to see that the CompTox dashboard data from the EPA has been used to power this version of the my app!

## Frequently asked questions about m/z EPA CompTox

### What is m/z EPA CompTox?

m/z EPA CompTox is a mobile application that allows users to search for chemical structures within the EPA CompTox database using their exact mass (m/z). It provides instant access to over 700,000 chemical structures.

### How many chemical structures are available in m/z EPA CompTox?

The app provides access to a database containing more than 700,000 chemical structures, allowing for extensive searching and identification.

### What devices does m/z EPA CompTox support?

m/z EPA CompTox is available on iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

### Is m/z EPA CompTox free to use?

Yes, m/z EPA CompTox is completely free to download and use, with no in-app purchases or advertisements.

### What is the age rating for m/z EPA CompTox?

The app has an age rating of 4+, indicating it is suitable for users of all ages, including young children.

### When was m/z EPA CompTox last updated?

m/z EPA CompTox was last updated on September 17, 2016, with version 1.0. It was initially released on the same date.

### How accurate is the search functionality in m/z EPA CompTox?

The app is designed for instant search by exact mass (m/z), implying a high degree of precision for identifying chemical structures based on this specific parameter.

### Does m/z EPA CompTox offer offline access?

The provided information does not specify offline access capabilities. However, as it searches a database, an internet connection is likely required for its core functionality.

## Version history (last 1 release)

### 1.0 — 2016-09-17

This app has been updated by Apple to display the Apple Watch app icon.

## Apps similar to m/z EPA CompTox

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [HanDBase Database Manager](https://appshunter.io/ios/app/handbase-database-manager/id293419668) | 3.8 (95) | $9.99 | Productivity |
| [Chemical Labels](https://appshunter.io/ios/app/chemical-labels/id1582068880) | 5.0 (6) | Free | Productivity |
| [EPA Connect](https://appshunter.io/ios/app/epa-connect/id1604434482) | — | Free | Productivity |
| [Flipforce CRM](https://appshunter.io/ios/app/flipforce-crm/id6502606518) | — | Free | Productivity |
| [HPLC Calculator](https://appshunter.io/ios/app/hplc-calculator/id1600330994) | — | Free | Productivity |
| [ChemGraphic - Chemical Editor](https://appshunter.io/ios/app/chemgraphic-chemical-editor/id1451571017) | 3.0 (2) | Free | Productivity |

## More apps by Kirill Blinov

- [Molecular Formula Generator](https://appshunter.io/ios/app/molecular-formula-generator/id646768652)
- [Orange NMR](https://appshunter.io/ios/app/orange-nmr/id662859811)
- [Molecule](https://appshunter.io/ios/app/molecule/id797331776)
- [All NMR](https://appshunter.io/ios/app/all-nmr/id808434461)
- [m/z](https://appshunter.io/ios/app/mz/id1117272212)
- [Find Molecule](https://appshunter.io/ios/app/find-molecule/id1140792040)

All apps by Kirill Blinov: https://appshunter.io/developer/630833420

## Related topics

[qtox](https://appshunter.io/ios/topics/qtox)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*