Synology MailPlus vs eM Client
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synology MailPlus
Manage your emails efficiently on mobile with intuitive swipe gestures and quick-reply templates. Organize messages, attach files, and search with advanced features. Requires a Synology NAS and MailPlus server.
- Swipe gestures for quick actions
- Quick-reply templates
- Compose and attach files
- Create mailboxes and labels
- Advanced search
- Offline cache for attachments
- Customizable unread badge
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**You must own a Synology NAS to run this app, and be running the MailPlus to get the complete set of features** Composing emails or replying to messages on mobile devices can be a hassle. With the intuitive design of MailPlus, you can accomplish more with less effort. Organize your emails right in the palm of your hand. The swipe gestures allow you to quickly apply desired actions to your emails. Quick-reply templates save repeated keystrokes and make your reply even more efficient. With MailPlus, managing emails is only a few taps or swipes away. With MailPlus for iPhone/iPad, you can: -Compose an email and enrich the content with built-in emoticons -Attach files on your mobile device to the message -Create mailboxes and labels -Customize swipe gestures -Use quick-reply templates to reply to emails efficiently -Share browser content with your friends via MailPlus -Customize the unread email badge to only show notifications for certain labels and mailboxes -Find emails efficiently with advanced search -Offline cache stores previously viewed attachments and images for you to browse later even without Internet connection -Supports HTTPS for secure connection -All features are available with DSM 6.0 and MailPlus 1.2.0 running on Synology DiskStation
eM Client
This app unifies email, calendar, tasks, contacts, and notes into a single, AI-enhanced platform. It offers advanced features typically found on desktop, including instant message translation and robust encryption, for seamless management of multiple accounts on your iPhone and iPad.
- AI-enhanced email drafting and replies
- Unified inbox for email, calendar, tasks, contacts, and notes
- Instant message translation
- PGP and S/MIME encryption
- Quick import from desktop app
- Mail-tracking pixel detection
- Snooze and Undo Send features
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These features include: • Super easy setup including quick import from the desktop app via QR code • AI Support for replies and email drafting • Emails, calendars, tasks, contacts and notes all in one place • Favorite, Global, and search folders to easily manage multiple accounts • Instant message translation • PGP and S/MIME encryption • Tags and Gmail labels support to sort and color-code your messages • Signatures you can choose from and assign to your accounts • QuickText: snippets of text you can quickly insert into your emails • Templates • Messages grouped into conversations • Advanced privacy options • Mail-Tracking pixel detection • Snooze • Watch for reply • Undo Send • Password protection • Online meetings integration • Cloud storage providers integration • Mobile device management (MDM) support and more
Screenshots
Verdict
The clearest difference is update cadence: eM Client at every 10 days against Synology MailPlus's every 4 months. eM Client also leads on iOS requirement (15.0 vs 17.0). On price, rating, review sentiment and ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 3.8 for Synology MailPlus against 3.7 for eM Client. Both are backed by a comparable volume of ratings — 19 and 48 respectively. Written reviews are what separate them: 43% of Synology MailPlus's written reviews are positive against 48% of eM Client's.
Synology MailPlus ships an update every 4 months, eM Client every 10 days. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.
| Parameter | Synology MailPlus | eM Client |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (19 ratings) — better | 3.7 (48 ratings) |
| Positive reviews | 42.5% of reviews | 48.3% of reviews — better |
| Number of ratings | 19 | 48 — better |
| Update frequency | Every 4 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 100 MB | 178 MB |
| Age rating | 4+ | 4+ |
| Developer | Synology Inc. | eM Client |
Customer experience
Synology MailPlus
eM Client
Bugs and requests
Synology MailPlus
Not enough reviews yet to summarise bugs or requests.
eM Client
Reported bugs
4 issues- Emails not sending immediately
- Drafts not visible or editable
- Inconsistent behavior when switching between folders
- Trouble signing in to multiple Google accounts
Requested features
6 requests- Calendar integration
- Improved background refresh and sync
- Custom notification sounds
- Ability to sort emails by sender
- More customization options
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- Actions from notifications (archive, mark as read, etc.)
In-app purchases
Synology MailPlus
No in-app purchases
eM Client
No in-app purchases
Questions
Is Synology MailPlus free?
Is eM Client free?
Which has better reviews, Synology MailPlus or eM Client?
Do Synology MailPlus or eM Client have ads?
Which is updated more often, Synology MailPlus or eM Client?
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