# ESET Secure Authentication vs Zimbra Email & Collaboration

The clearest difference is rating: ESET Secure Authentication at 3.2 against Zimbra Email & Collaboration's 2.5. ESET Secure Authentication also leads on monetization model (free vs freemium) and review sentiment (29% vs 7%). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

ESET Secure Authentication holds the better App Store score, 3.2 against 2.5. Both are backed by a comparable volume of ratings — 30 and 24 respectively. Written reviews point the same way: 29% of ESET Secure Authentication's written reviews are positive against 7% of Zimbra Email & Collaboration's.

ESET Secure Authentication ships an update every 6 months, Zimbra Email & Collaboration every 17 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | ESET Secure Authentication | Zimbra Email & Collaboration |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (30 ratings)](https://appshunter.io/ios/app/eset-secure-authentication/id597858522/reviews)** | [2.5 (24 ratings)](https://appshunter.io/ios/app/zimbra-email-and-collaboration/id1554848550/reviews) |
| Number of ratings | **30** | 24 |
| Positive reviews | **29.1% of reviews** | 7.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 17 months |
| Monetization | **Free** | Freemium |
| Size | 85 MB | 2 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ESET, spol. s r.o.](https://appshunter.io/developer/409990169) | [Synacor](https://appshunter.io/developer/948735773) |

## What reviewers say

### ESET Secure Authentication

[App page](https://appshunter.io/ios/app/eset-secure-authentication/id597858522)

This companion app provides multi-factor authentication for businesses, strengthening access to company systems and data. It allows users to approve push notifications or generate one-time passwords to complement standard login credentials.

**Highlights:** Approve push notifications for authentication, Generate one-time passwords, Add accounts via QR code scanning, Supports Microsoft Web Apps, Secures VPN and cloud service access, Integrates with Windows, Mac, and Linux logins

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

**In-app purchases:** none


### Zimbra Email & Collaboration

[App page](https://appshunter.io/ios/app/zimbra-email-and-collaboration/id1554848550)

This comprehensive productivity suite integrates email with essential business tools like video conferencing, file sharing, chat, and calendar. It offers flexible deployment options, either as a hosted cloud service or on-premises software, ensuring data sovereignty and customizability for businesses of all sizes.

**Highlights:** Integrated email and business apps, Video conferencing, File sharing and cloud storage, Team chat, Calendar management, Hosted cloud or on-premises options

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

**In-app purchases:** none


## Frequently asked questions

### Is ESET Secure Authentication free?

ESET Secure Authentication is free to download, with no in-app purchases.

### Is Zimbra Email & Collaboration free?

Zimbra Email & Collaboration is free to download, with no in-app purchases.

### Which has better reviews, ESET Secure Authentication or Zimbra Email & Collaboration?

ESET Secure Authentication is rated higher. ESET Secure Authentication averages 3.2 out of 5 from 30 ratings, while Zimbra Email & Collaboration averages 2.5 from 24 ratings.

### Do ESET Secure Authentication or Zimbra Email & Collaboration have ads?

Neither ESET Secure Authentication nor Zimbra Email & Collaboration shows ads.

### Which is updated more often, ESET Secure Authentication or Zimbra Email & Collaboration?

ESET Secure Authentication ships an update every 6 months, and Zimbra Email & Collaboration every 17 months. Most recently, ESET Secure Authentication was updated on November 1, 2026 and Zimbra Email & Collaboration on October 29, 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.*