# CompTox Mobile vs ZapYap

The clearest difference is iOS requirement: CompTox Mobile at 6.0 against ZapYap's 16.0. 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 | CompTox Mobile | ZapYap |
| --- | --- | --- |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | Free | — |
| Size | 254 MB | 41 MB |
| Requires iOS | **6.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kirill Blinov](https://appshunter.io/developer/630833420) | [Neutron Lock](https://appshunter.io/developer/1782916305) |

## 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


### ZapYap

[App page](https://appshunter.io/ios/app/zapyap-ai-chat-plus-security/id6741761517)

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

**In-app purchases:** none


## Frequently asked questions

### Is CompTox Mobile free?

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

### Is ZapYap free?

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

### Do CompTox Mobile or ZapYap have ads?

Neither CompTox Mobile nor ZapYap 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.*