# Cathay vs Notary

The clearest difference is update cadence: Notary at every 2 months against Cathay's every 13 months. Cathay's advantage is iOS requirement (16.0 vs 18.6). 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.

Cathay ships an update every 13 months, Notary every 2 months. The most recent releases landed on October 11, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Cathay | Notary |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 9.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 21 MB | 42 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Cathay Innovation SAS](https://appshunter.io/developer/1596959525) | [Bundesnotarkammer](https://appshunter.io/developer/1624043833) |

## What reviewers say

### Cathay

[App page](https://appshunter.io/ios/app/cathay/id1596959523)

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

**In-app purchases:** none


### Notary

[App page](https://appshunter.io/ios/app/notary/id1624043830)

Securely complete notarial procedures online. This app facilitates the digital reading of your German eID card and qualified documents for online identification.

**Highlights:** Secure digital notarial procedures, Online identification, Read German eID card, Read digital photos from documents, Secure user identification

**In-app purchases:** none


## Frequently asked questions

### Is Cathay free?

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

### Is Notary free?

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

### Do Cathay or Notary have ads?

Neither Cathay nor Notary shows ads.

### Which is updated more often, Cathay or Notary?

Cathay ships an update every 13 months, and Notary every 2 months. Most recently, Cathay was updated on October 11, 2026 and Notary on October 27, 2026.

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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.*