# CompTox Mobile vs PST Reader · Opener, Converter

The clearest difference is review sentiment: CompTox Mobile at 100% against PST Reader · Opener, Converter's 0%. CompTox Mobile also leads on in-app purchases (none vs 8) and iOS requirement (6.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. PST Reader · Opener, Converter sells 7 in-app purchases, starting at $8.99 per 7 days. CompTox Mobile asks for nothing beyond the download.

## The numbers

| Metric | CompTox Mobile | PST Reader · Opener, Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/comptox-mobile/id1179517689/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | **Free** | Freemium |
| Size | 254 MB | 14 MB |
| Requires iOS | **6.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Kirill Blinov](https://appshunter.io/developer/630833420) | [Rush Tools LLC](https://appshunter.io/developer/1896773547) |

## What reviewers say

### CompTox Mobile

[App page](https://appshunter.io/ios/app/comptox-mobile/id1179517689)

Access a vast database of chemical structures and associated data, including physicochemical properties and toxicity information. Search by mass, NMR shifts, name, or CAS number to evaluate chemical safety.

**Highlights:** Chemical structure search, Exact mass lookup, ¹³C NMR chemical shift search, CAS Registry Number search, Physicochemical property data, Toxicity data access

**Features:** macOS Compatibility

**In-app purchases:** none


### PST Reader · Opener, Converter

[App page](https://appshunter.io/ios/app/pst-reader-opener-converter/id6777724591)

Access, read, and convert Outlook PST and OST archive files without needing Outlook installed. This app allows you to quickly open large archives, search for specific content, and export data into various formats like PDF, MBOX, and EML.

**Highlights:** Open PST and OST archives, Read emails, contacts, and calendar events, Full text search across archives, Filter by sender, date, and attachments, Convert archives to PDF, MBOX, EML, Export attachments and contacts, Works fully offline

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $8.99 | per 7 days |
| Pro Weekly | $9.99 | per 7 days |
| Pro Annual | $19.99 | per year |
| Pro Annual | $29.99 | per year |
| Pro Annual | $39.99 | per year |
| Pro Annual | $49.99 | per year |
| Pro Annual | $79.99 | per year |


## Frequently asked questions

### Is CompTox Mobile free?

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

### Is PST Reader · Opener, Converter free?

PST Reader · Opener, Converter is free to download, with in-app purchases available.

### Do CompTox Mobile or PST Reader · Opener, Converter have ads?

Neither CompTox Mobile nor PST Reader · Opener, Converter shows ads.

---

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