Comparison

ESET Secure Authentication vs Zimbra Email & Collaboration

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ESET Secure Authentication

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
Read full description

NOTE: Before installing ESET Secure Authentication, please note that the product requires server-side installation. This is a companion app and will not work independently. Contact your company‘s network administrator to receive your enrollment link. ESET Secure Authentication is an easy-to-install, deploy, and manage, multi-factor authentication (MFA) solution for businesses. The additional factor—received or generated by the mobile app—complements and strengthens the standard authentication process and secures access to your company’s systems and data. The ESET Secure Authentication app allows you to: - Receive push notifications on your device that you can approve to complete authentication - Generate one-time passwords to use alongside your username and password - Add a new account simply by scanning a QR code Supported integrations: - Microsoft Web Apps - Local Windows logins - Remote Desktop Protocol - VPNs - Cloud services via AD FS - Mac/Linux - Custom apps Multi-factor authentication is a combination of two or more security factors—“something the user knows” (e.g., a password), “something the user has” (such as a mobile phone to generate a one-time password or receive a push notification), and even “something the user is” (when approving push notifications via biometrics). Find out more about ESET Secure Authentication for businesses: https://www.eset.com/us/business/solutions/multi-factor-authentication/

About

Zimbra Email & Collaboration

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
Read full description

Zimbra is Email + Every App Your Business Needs to Succeed: Collaboration, Video Conferencing, File Sharing, Cloud Storage, Chat and Calendar. Want no-fuss email and apps with the best value? Zimbra’s productivity suite offers the lowest cost in its class, available as hosted/cloud service or on-premises for 100% data sovereignty. Zimbra is custom made and ideal for Businesses/Enterprises of all sizes, Government Agencies, Education and Highly Regulated Industries. Do you want someone else to host and manage your email? Zimbra’s hosted cloud solution provides: Subscription service, automatic upgrades, zero downtime, custom branding. No IT Headaches! Do you want to host and manage your own data for security and privacy? Zimbra’s on-premises licensed software provides: Data sovereignty, custom branding, custom integrations. The mobile app supports Zimbra Collaboration Server (ZCS) version 9.0.0 and above. Your WFH remote workers can collaborate with team members anywhere, anytime and now on any device with the same user experience. Launch your favorite apps from the tool you use most: Email. Fully integrated with Slack, Zoom, Dropbox, Webex, Google Drive, OneDrive + More Writing an email and want to ... send a Slack message? start a video meeting? send a calendar invite? You can do it right from email. No other email matches Zimbra, trusted by hundreds of millions of users worldwide for over 15 years. Free Trial, no obligation, no credit card needed. Try it today. Visit - https://info.zimbra.com/zimbra-cloud-email-trial

Screenshots

ESET Secure Authentication4 screens
Zimbra Email & Collaboration4 screens

Verdict

The call

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 (30% vs 7%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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 21 respectively. Written reviews point the same way: 30% of ESET Secure Authentication's written reviews are positive against 7% of Zimbra Email & Collaboration's.

UpkeepUpdate frequency

ESET Secure Authentication ships an update every 6 months, Zimbra Email & Collaboration every 17 months. The most recent releases landed on September 17, 2026 and September 22, 2026 respectively.

Scorecard4 real differences · 6 level
ESET Secure Authentication versus Zimbra Email & Collaboration: the parameters behind the verdict, then further details
ParameterESET Secure AuthenticationZimbra Email & Collaboration
PriceFreeFree
Rating3.2 (30 ratings) — better2.5 (21 ratings)
Positive reviews29.6% of reviews — better7.4% of reviews
Number of ratings30 — better21
Update frequencyEvery 6 months — betterEvery 17 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size85 MB2 MB
Age rating4+4+
DeveloperESET, spol. s r.o.Synacor

Customer experience

ESET Secure Authentication

All ratings30 ratings
Positive53.3%
Neutral6.7%
Negative40.0%
Written reviews54 reviews
Positive29.6%
Neutral16.7%
Negative53.7%

Zimbra Email & Collaboration

All ratings21 ratings
Positive33.3%
Neutral4.8%
Negative61.9%
Written reviews81 reviews
Positive7.4%
Neutral9.9%
Negative82.7%

In-app purchases

None

ESET Secure Authentication

No in-app purchases

None

Zimbra Email & Collaboration

No in-app purchases

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 21 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 September 17, 2026 and Zimbra Email & Collaboration on September 22, 2026.

Other comparisons