# eM Client vs Rock Mail

The clearest difference is update cadence: Rock Mail at every 2 days against eM Client's every 10 days. eM Client's advantage is iOS requirement (15.0 vs 18.0). 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.

eM Client ships an update every 10 days, Rock Mail every 2 days. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | eM Client | Rock Mail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (51 ratings)](https://appshunter.io/ios/app/em-client/id1561166404/reviews)** | — |
| Number of ratings | **51** | — |
| Positive reviews | 47.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 179 MB | 22 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [eM Client](https://appshunter.io/developer/1561166526) | [Jeff Ridder](https://appshunter.io/developer/6824506207) |

## What reviewers say

### eM Client

[App page](https://appshunter.io/ios/app/em-client/id1561166404)

Manage emails, calendars, tasks, contacts, and notes efficiently in one application. Features AI assistance for drafting and replying, robust security with PGP and S/MIME encryption, and instant message translation. Offers advanced privacy options and seamless integration with cloud storage and online meetings.

**Highlights:** Unified inbox for emails, calendars, tasks, contacts, and notes, AI-powered email drafting and reply assistance, PGP and S/MIME encryption for secure communication, Instant message translation, Advanced privacy and mail-tracking pixel detection, Integration with cloud storage and online meetings

**In-app purchases:** none

**What reviewers like**

- 🚀 Reliable and customizable
- 🔒 Great privacy and security features
- 👍 Clean and intuitive interface
- 🚀 Smooth and fast performance
- 👍 Seamless sync between desktop and mobile

**What reviewers complain about**

- 🐛 Slow email sync and loading issues
- 🐛 Unreliable push notifications and badge counts
- 🐛 Inconsistent behavior compared to other email apps
- 🐛 Bugs and glitches, especially in the initial release
- 🔋 High battery consumption

**Reported bugs**

- Emails not sending immediately
- Drafts not visible or editable
- Inconsistent behavior when switching between folders
- Trouble signing in to multiple Google accounts

**Requested features**

- Calendar integration
- Improved background refresh and sync
- Custom notification sounds
- Ability to sort emails by sender
- More customization options


### Rock Mail

[App page](https://appshunter.io/ios/app/rock-mail/id6824506205)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is eM Client free?

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

### Is Rock Mail free?

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

### Do eM Client or Rock Mail have ads?

Neither eM Client nor Rock Mail shows ads.

### Which is updated more often, eM Client or Rock Mail?

eM Client ships an update every 10 days, and Rock Mail every 2 days. Most recently, eM Client was updated on November 13, 2026 and Rock Mail on November 10, 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.*