# Mail+ for Outlook vs Citrix Secure Mail

The clearest difference is price: Citrix Secure Mail at Free against Mail+ for Outlook's $4.99. Citrix Secure Mail also leads on rating (4.5 vs 3.9) and in-app purchases (none vs 1). Mail+ for Outlook's advantage is update cadence (fortnightly vs every 3 months) and chart position (#142 vs unranked). On ads and device support there is nothing between them.

Citrix Secure Mail is free to download; Mail+ for Outlook costs $4.99 up front. Mail+ for Outlook sells 1 one-off in-app purchase. Citrix Secure Mail asks for nothing beyond the download.

Citrix Secure Mail holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Citrix Secure Mail has 5.9K ratings behind it against 840, so its average is the more settled of the two. Written reviews point the same way: 63% of Mail+ for Outlook's written reviews are positive against 81% of Citrix Secure Mail's.

Mail+ for Outlook ships an update fortnightly, Citrix Secure Mail every 3 months. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Mail+ for Outlook | Citrix Secure Mail |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [3.9 (840 ratings)](https://appshunter.io/ios/app/mail-plus-for-outlook/id428974099/reviews) | **[4.5 (5.9K ratings)](https://appshunter.io/ios/app/citrix-secure-mail/id1155203964/reviews)** |
| Number of ratings | 840 | **5.9K** |
| Positive reviews | 63.1% of reviews | **80.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#142** | — |
| Size | 25 MB | 59 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MAIL PLUS APP LLC](https://appshunter.io/developer/1688964294) | [Citrix Systems, Inc.](https://appshunter.io/developer/402844564) |

## What reviewers say

### Mail+ for Outlook

[App page](https://appshunter.io/ios/app/mail-plus-for-outlook/id428974099)

**Currently charting:** #142 Top Paid · Business (US App Store)

Access Outlook email and calendar securely on your iOS device. Manage work and personal accounts separately with tools designed for mobile business users, including rich text editing and scheduling assistance. Supports various Exchange versions and popular email services.

**Highlights:** Secure Outlook email access, Calendar event management, Rich HTML text editing, Attachment handling, Global Address Book search, Passcode protection

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Out of Office | $1.99 | one-time |

**What reviewers like**

- 🚀 Works great
- 👍 User-friendly
- 🔒 Secure access to work email
- 📆 Calendar integration
- 🗓 Convenient for on-the-go access

**What reviewers complain about**

- 🐛 Crashes frequently
- ⚠️ Unreliable performance
- 🔍 Search functionality issues
- 📨 Emails not always sent
- 🔌 Drains battery quickly

**Reported bugs**

- Crashes when searching emails
- Attachments not opening properly
- Calendar not syncing correctly
- Inconsistent login behavior
- Outbox issues - emails get stuck

**Requested features**

- Ability to edit calendar events
- Improved contact management
- Option to sync with native iOS calendar
- Push notification support
- More customization options


### 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 Mail+ for Outlook free?

Mail+ for Outlook costs $4.99, and also offers in-app purchases.

### Is Citrix Secure Mail free?

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

### Which has better reviews, Mail+ for Outlook or Citrix Secure Mail?

Citrix Secure Mail is rated higher. Mail+ for Outlook averages 3.9 out of 5 from 840 ratings, while Citrix Secure Mail averages 4.5 from 5.9K ratings.

### Do Mail+ for Outlook or Citrix Secure Mail have ads?

Neither Mail+ for Outlook nor Citrix Secure Mail shows ads.

### Which is updated more often, Mail+ for Outlook or Citrix Secure Mail?

Mail+ for Outlook ships an update fortnightly, and Citrix Secure Mail every 3 months. Most recently, Mail+ for Outlook was updated on September 25, 2026 and Citrix Secure Mail on September 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*