# Cato Client vs Otpkey Authenticator

The clearest difference is rating: Cato Client at 3.6 against Otpkey Authenticator's 1.0. Cato Client also leads on ratings volume (14 vs 2). Otpkey Authenticator's advantage is device support (5 vs 2) and iOS requirement (13.0 vs 16.0). On price, review sentiment, update cadence and ads there is nothing between them.

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

Cato Client holds the better App Store score, 3.6 against 1.0. That said, the two scores are not equally well evidenced: Cato Client has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 50% positive.

Cato Client ships an update every 3 months, Otpkey Authenticator every 2 months. The most recent releases landed on September 21, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Cato Client | Otpkey Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (14 ratings)](https://appshunter.io/ios/app/cato-client/id1095130377/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/otpkey-authenticator/id6444123920/reviews) |
| Number of ratings | **14** | 2 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 29 MB | 22 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Cato Networks Ltd.](https://appshunter.io/developer/1095130376) | [Certchip Corp](https://appshunter.io/developer/1652474819) |

## What reviewers say

### Cato Client

[App page](https://appshunter.io/ios/app/cato-client/id1095130377)

This app provides secure access for business users to connect to corporate resources from their mobile devices. It allows seamless connectivity to on-premise and cloud-based systems, enabling productivity for traveling professionals.

**Highlights:** Secure mobile connectivity, Access to corporate resources, Connect to Cato Cloud, On-premise and cloud access, For traveling business users

**Features:** Vision Pro support

**In-app purchases:** none


### Otpkey Authenticator

[App page](https://appshunter.io/ios/app/otpkey-authenticator/id6444123920)

Enhance your online security with multi-factor authentication. This app generates one-time passwords for various services, even offline, and supports standard TOTP/HOTP protocols. It offers features like QR code scanning, auto-hiding codes, and biometric authentication.

**Highlights:** Multi-factor authentication, Offline OTP generation, QR code scanning and export, Biometric authentication support, Clipboard code copying, Widget and Watch App support

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cato Client free?

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

### Is Otpkey Authenticator free?

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

### Which has better reviews, Cato Client or Otpkey Authenticator?

Cato Client is rated higher. Cato Client averages 3.6 out of 5 from 14 ratings, while Otpkey Authenticator averages 1.0 from 2 ratings.

### Do Cato Client or Otpkey Authenticator have ads?

Neither Cato Client nor Otpkey Authenticator shows ads.

### Which is updated more often, Cato Client or Otpkey Authenticator?

Cato Client ships an update every 3 months, and Otpkey Authenticator every 2 months. Most recently, Cato Client was updated on September 21, 2026 and Otpkey Authenticator on October 2, 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.*