# Mobile Authenticator ES. vs Citrix Secure Mail

The clearest difference is review sentiment: Citrix Secure Mail at 81% against Mobile Authenticator ES.'s 24%. Citrix Secure Mail also leads on rating (4.5 vs 2.5) and ratings volume (5.9K vs 60). On price, update cadence, 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.

Citrix Secure Mail holds the better App Store score, 4.5 against 2.5. That said, the two scores are not equally well evidenced: Citrix Secure Mail has 5.9K ratings behind it against 60, so its average is the more settled of the two. Written reviews point the same way: 24% of Mobile Authenticator ES.'s written reviews are positive against 81% of Citrix Secure Mail's.

Mobile Authenticator ES. ships an update every 2 months, Citrix Secure Mail every 3 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Mobile Authenticator ES. | Citrix Secure Mail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (60 ratings)](https://appshunter.io/ios/app/mobile-authenticator-es/id541882261/reviews) | **[4.5 (5.9K ratings)](https://appshunter.io/ios/app/citrix-secure-mail/id1155203964/reviews)** |
| Number of ratings | 60 | **5.9K** |
| Positive reviews | 24.5% of reviews | **80.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 23 MB | 59 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OneSpan International GmbH](https://appshunter.io/developer/322428926) | [Citrix Systems, Inc.](https://appshunter.io/developer/402844564) |

## What reviewers say

### Mobile Authenticator ES.

[App page](https://appshunter.io/ios/app/mobile-authenticator-es/id541882261)

This app provides two-factor authentication for enterprise security, enabling users to securely connect to company applications and networks from their mobile devices. It's designed for businesses requiring robust access control and is activated via enterprise security codes.

**Highlights:** Two-factor authentication, Enterprise security, Secure network access, Mobile connectivity, Activation via enterprise codes

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Works as intended
- 🚀 Fast and efficient
- 🔒 Secure authentication

**What reviewers complain about**

- 🐛 Crashes on launch
- 🐛 Blank screen issue
- 🐛 Forgets credentials
- 🐛 Slow to update
- 🐛 Limited to one token

**Reported bugs**

- App crashes on launch
- Blank screen on opening
- Forgets authentication details
- Cannot edit server time
- App crashes on iOS 15

**Requested features**

- Apple Watch support
- Watch version of OTP function
- Ability to renew without reinstalling
- Support for iOS betas
- Ability to edit server time


### Citrix Secure Mail

[App page](https://appshunter.io/ios/app/citrix-secure-mail/id1155203964)

Manage multiple email accounts, calendars, and contacts securely on your mobile device. This robust solution integrates with business tools and offers advanced security features for enterprise or BYOD environments, protecting personal data.

**Highlights:** Multiple Exchange account support, Phishing email reporting, Email attachment folder, Single sign-on, Quick email sorting (Triage view), Personal contact groups, Integration with Teams/Skype/GoToMeeting

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and reliable
- 🔒 Secure and encrypted
- 👍 Intuitive and user-friendly
- 🗓️ Seamless calendar integration
- 💡 Convenient mobile access to work email

**What reviewers complain about**

- 🐛 Frequent crashes and sync issues
- 🔑 Repeated login/authorization required
- 📄 Limited functionality compared to desktop email
- 🔍 Unreliable notification badges
- 🔒 Overly restrictive security measures

**Reported bugs**

- Emails not syncing properly
- Calendar not displaying correctly
- Attachments failing to open
- Compatibility issues with iOS 12 and newer
- Notification delays and inaccuracies

**Requested features**

- Allow copy/paste functionality
- Integrate with personal calendars and contacts
- Improve PDF viewing and annotation
- Provide more customization options
- Enable offline email access and drafting


## Frequently asked questions

### Is Mobile Authenticator ES. free?

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

### Is Citrix Secure Mail free?

Citrix Secure Mail is free to download, with no in-app purchases.

### Which has better reviews, Mobile Authenticator ES. or Citrix Secure Mail?

Citrix Secure Mail is rated higher. Mobile Authenticator ES. averages 2.5 out of 5 from 60 ratings, while Citrix Secure Mail averages 4.5 from 5.9K ratings.

### Do Mobile Authenticator ES. or Citrix Secure Mail have ads?

Neither Mobile Authenticator ES. nor Citrix Secure Mail shows ads.

### Which is updated more often, Mobile Authenticator ES. or Citrix Secure Mail?

Mobile Authenticator ES. ships an update every 2 months, and Citrix Secure Mail every 3 months. Most recently, Mobile Authenticator ES. was updated on October 22, 2026 and Citrix Secure Mail on October 24, 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.*