vioscale
Comparison

Mailspring vs Spark Mail

No clear leader: Spark Mail (70.5) and Mailspring (66.3) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Mailspring full profile →Spark Mail full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Mailspring66
Spark Mail71
Score
Vioscale score
Mailspring66 / 100low · 29%
Spark Mail71 / 100low · 43%
Pricing
Free tier
Mailspring✓
Spark Mail✓
Model
Mailspringcommercial
Spark Mailfreemium
Price level
Mailspringlow
Spark Maillow
Starting price
Mailspring$8
Spark Mail$10
Transparent
Mailspring✓
Spark Mail✓
Integrations
Count
Mailspring7
Spark Mail31
Security
Gdpr
Mailspring–
Spark Mail✓
Soc2
Mailspring–
Spark Mail✓
Adoption
Github stars
Mailspring17,762
Spark Mail–
Activity
Commits last 30d
Mailspring38
Spark Mail–
Release
Cadence days
Mailspring15
Spark Mail–
History
Mailspring20 items
Spark Mail–
License
Spdx
MailspringGPL-3.0
Spark Mail–
Language
Primary
MailspringJavaScript
Spark Mail–
Market
Availability

Capabilities

Feature-by-feature on the axes that matter for email clients. “-” means undocumented, not absent.

Capabilities
Deployment model
MailspringLocal direct imap client
Spark Mail-
Universal imap smtp exchange support
Mailspring✓
Spark Mail-
Keyboard shortcut only navigation speed
Mailspring-
Spark Mail-
Split inbox AI auto categorization
Mailspring-
Spark Mail-
Read receipts and open tracking
Mailspring✓
Spark Mail-
Snooze and scheduled send later
Mailspring✓
Spark Mail-
Generative AI LLM email drafting
Mailspring-
Spark Mail-
Conversational chat layout view
Mailspring-
Spark Mail-
Unified multi account inbox view
Mailspring✓
Spark Mail-
Pgp end to end encryption support
Mailspring-
Spark Mail-
SOC2 type ii
Mailspring-
Spark Mail-
ISO 27001
Mailspring-
Spark Mail-
Pricing model
MailspringFreemium
Spark Mail-

What each one is

The product in its own terms, so the numbers below have context.

Mailspring

A lightweight desktop application for Mac, Windows, and Linux that brings together multiple email accounts from different providers into one unified inbox. Core features run locally on your computer, with optional paid features for message tracking, scheduling, and productivity analytics.

Independently observed

Spark Mail

Spark is an email application designed for individual and team use, offering smart inbox management, AI-assisted email composition, and collaboration features. It supports multiple platforms and integrates with popular productivity and communication tools.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Mailspring

from $8/mofreemiumFree tier

Free tier available; Pro at $8/month

  • FreeFree
    • Multi-account support
    • Unified inbox
    • Snooze
    • Send later
    • Mail rules
    • +4 more
  • Pro$8/month
    • Read receipts
    • Link tracking
    • Unlimited snooze and send later
    • Mailbox analytics
    • Contact and company profiles
as of verify ↗

Spark Mail

from $10/user/moSubscriptionFree tier7-day trial

Free tier available. Plus $10/user/month, Pro $20/user/month (or annual billing). Enterprise custom pricing.

  • FreeFree
    • Unlimited email accounts
    • Smart search
    • Smart notifications
    • Scheduled send
    • Snooze
    • +11 more
  • Plus$10/user/month or $120/year
    • All Free features
    • Comprehensive mail productivity
    • Spark +AI (AI assistant)
    • Basic team collaboration
    • Custom templates
    • +2 more
  • Pro$20/user/month or $240/year
    • All Plus features
    • Unlimited +AI meeting notes
    • Workflows
    • Automatic labels (coming soon)
    • Read status
    • +4 more
  • EnterpriseContact sales
    • All Pro features
    • Security & control (SOC II compliance)
    • Dedicated customer success management
    • 1:1 productivity coaching
    • Centralized billing
    • +1 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
iOS
Mailspring✗
Spark Mail✓
Android
Mailspring✗
Spark Mail✓
macOS
Mailspring✓
Spark Mail✓
Windows
Mailspring✓
Spark Mail✓
Linux
Mailspring✓
Spark Mail✗
Deployment
Cloud / SaaS
Mailspring–
Spark Mail✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (3)
  • Gmail
  • iCloud
  • Yahoo!

Mailspring

8 total - 5 not shared
  • Office 365
  • FastMail
  • Outlook.com
  • IMAP
  • SMTP
Independently observed

Spark Mail

31 total - 28 not shared
  • Asana
  • MeisterTask
  • TickTick
  • Todoist
  • Trello
  • 2Do
  • OmniFocus
  • Reminders
  • Things
  • Evernote
  • Instapaper
  • OneNote
  • Agenda
  • Bear
  • Notion
  • Box
  • Dropbox
  • Google Drive
  • OneDrive
  • GoTo Meeting
  • Zoom
  • Google Calendar
  • Outlook
  • Microsoft Teams
  • +4 more
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.