tech from europe
vsSpark

eM Client vs Spark

Last updated October 2026

Looking for a European alternative to Spark? Here's how eM Client compares, on EU hosting, GDPR and what it does.

Our pick for a European buyer: eM Client. We weight data residency, GDPR and EU jurisdiction above everything else — that is the constraint this directory exists to solve.

eM Client
Spark
What it is
Desktop email client with calendar, contacts, tasks and AI-assisted writing
not established
Headquarters
🇨🇿 CZ
No
EU data residency
not established
not established
DSGVO / GDPR
Yes
not established
Certifications
No
not established
Price from
€49.95/user/yr
not established
Free plan
Yes
not established
Open Source
No
not established
Ratings
No
No
Integrations
Google Workspace, Microsoft Office 365, Microsoft Exchange, Microsoft Outlook, iCloud +26
not established

We have not yet completed our own research on Spark; rows above show only what we can evidence. Check the vendor for specifics.

Where each one wins

eM Client

Strengths

  • +Straightforward account setup with automatic import from Outlook or Thunderbird
  • +Clean, customizable interface with familiar email organization and themes
  • +Unified inbox with built-in calendar, contacts, and tasks for all-in-one workflow
  • +Compatibility with major email services and account types
  • +Affordable alternative to Outlook with free option and one-time licensing
  • +Fast and stable syncing for daily use
  • +Economical for work or school environments

Limitations

  • −Support can be slow, incomplete, or unresponsive for some users
  • −Search inconsistencies and limited formatting options in message composition
  • −Occasional crashes, freezing, or database corruption warnings

Spark

Review sentiment not yet compiled.

Data residency & compliance

eM Client
Spark
EU data residency
not established
not established
Transfer mechanism
not established
not established
DPA
not established
not established
Sub-processors
not established
not established
Certifications
No
No

Pricing

eM Client

  • Free €0.00 per user / lifetimeRegistration required · Home use on 1 device · 2 email accounts
  • Personal €49.95 per user / year1 person · Up to 3 devices · Includes AI Add-on (annual subscription only)
  • Business €250.95 per year (per device: €25.10)Per device pricing · Includes AI Add-on (annual subscription only) · Business license manager

Prices are in euros and may vary by region or currency. One-time payments license the current major version. 30-day free trial and 30-day money-back guarantee for paid plans.

Spark

No published pricing we could verify.

Features

eM Client

Email
POP3, SMTP, IMAP, Exchange and Office 365 support, Conversation/thread view, search and folders, Email rules, categories, mass mail, Delayed send, undo send, snooze
Calendar and tasks
Calendar management, Task management, Calendar invitations, Create events and tasks from email
Contacts
Contact management, Contact deduplication, Support for address-book services and directories
Notes and chat
Notes linked to email, Direct chats and collaboration accounts, Multichats, channels, threads, File transfers and reactions
Security and privacy
PGP and S/MIME message encryption, Tracking-pixel blocking, eM Sync for encrypted synchronization

Spark

Feature breakdown not yet compiled.

See eM Client →More Spark alternatives