Comparison

eM Client vs Rock Mail

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

eM Client

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
Read full description

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

About

Rock Mail

Features
Read full description

Rock Mail is a fast, private mail app for people who run their own mail or use a JMAP or IMAP provider. It talks directly to your mail server — there's no Rock Mail account, no cloud in between, no analytics and no ads. JMAP FIRST, IMAP TOO Sign in to a JMAP server for instant updates, or to any IMAP and SMTP account. CONVERSATIONS Messages are grouped into conversations, with fast search that works even offline. PRIVACY BUILT IN Remote images are held back until you allow them, for one message or always for a sender. Known tracking pixels are removed. Your always-load list is stored on your own server so all your devices share it. RULES ON YOUR SERVER Create rules that file, flag or forward mail. They run on your server (JMAP with Sieve), so mail is sorted even when your devices are off. WORKS OFFLINE Read, reply, file and delete without a connection. Changes go out when you're back online, with Undo Send. NOTIFICATION BRIEFS On devices with Apple Intelligence, new-mail notifications include a short summary written on your device. ON IPHONE, IPAD AND MAC One purchase covers both, with a native Mac app: multiple windows, toolbar, keyboard shortcuts, and the option to make Rock Mail your default mail app.

Screenshots

eM Client4 screens
Rock Mail4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
eM Client versus Rock Mail: the parameters behind the verdict, then further details
ParametereM ClientRock Mail
PriceFreeFree
Rating3.7 (51 ratings) — better—
Positive reviews47.5% of reviews—
Number of ratings51 — better—
Update frequencyEvery 10 daysEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better18.0
Further details — not scored
Size179 MB22 MB
Age rating4+4+
DevelopereM ClientJeff Ridder

Bugs and 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
Show 1 more
  • Actions from notifications (archive, mark as read, etc.)

Rock Mail

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

eM Client

No in-app purchases

None

Rock Mail

No in-app purchases

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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