# Synology MailPlus vs TR3

The clearest difference is update cadence: Synology MailPlus at every 4 months against TR3's every 9 months. TR3's advantage is iOS requirement (13.4 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Synology MailPlus ships an update every 4 months, TR3 every 9 months. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Synology MailPlus | TR3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (19 ratings)](https://appshunter.io/ios/app/synology-mailplus/id967913737/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 42.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Free | — |
| Size | 100 MB | 25 MB |
| Requires iOS | 17.0 | **13.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Synology Inc.](https://appshunter.io/developer/321493109) | [Nazca Ricerca srl](https://appshunter.io/developer/827789482) |

## What reviewers say

### Synology MailPlus

[App page](https://appshunter.io/ios/app/synology-mailplus/id967913737)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


### TR3

[App page](https://appshunter.io/ios/app/tr3/id6503912209)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Synology MailPlus free?

Synology MailPlus is free to download, with no in-app purchases.

### Is TR3 free?

TR3 is free to download, with no in-app purchases.

### Do Synology MailPlus or TR3 have ads?

Neither Synology MailPlus nor TR3 shows ads.

### Which is updated more often, Synology MailPlus or TR3?

Synology MailPlus ships an update every 4 months, and TR3 every 9 months. Most recently, Synology MailPlus was updated on October 15, 2026 and TR3 on October 9, 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.*