Mailspring vs Spark Mail
On the evidence we track, Mailspring leads this comparison with a composite score of 59/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for email clients. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Mailspring
LeaderMailspring is a desktop email client built as open source that runs your sync engine locally without sending credentials to remote servers. It includes core features like unified inbox, snooze, scheduled sending, and mail rules, with optional premium capabilities available through a paid subscription.
Spark Mail
A cross-platform email application offering core email functionality for free, with advanced features and team collaboration available through premium plans. Includes AI-assisted email handling, calendar integration, and task management connectors.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Mailspring
LeaderFree open source core + monthly paid Pro tier
- FreeFree
- Unified Inbox
- Snooze
- Send Later
- Mail Rules
- Templates
- Mailspring Pro-
- Link tracking
- Read receipts
- Mailbox analytics
- Contact profiles
- Company profiles
Spark Mail
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
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- Gmail
- iCloud
- Yahoo!
Mailspring
Leader- Office 365
- FastMail
- Outlook.com
- IMAP
- SMTP
Spark Mail
- 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
Mailspring or Spark Mail: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.