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Head-to-head · Email Clients

Spark Mail vs Mailspring

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Spark Mail #4 in Email Clients 9.0/10 Free plan · 7-day trial Free planFree trial✓ 4 of 4 features Visit Spark Mail
Mailspring #8 in Email Clients 8.6/10 Free plan Free plan✓ 3 of 4 features Visit Mailspring

Spark Mail leads on 1 check, Mailspring on 0, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSpark Mail · 9.0/10
  • Free planboth
  • Free trialonly Spark Mail
  • Most featuresSpark Mail · 4 of 4

Spark Mail scores higher on our rubric for email clients: 9.0 against 8.6 out of 10; our editors rank them #4 and #8.

Spark Mail offers calendar tools; Mailspring doesn't.

Spark Mail is the better fit for teams needing collaborative email workflows. Mailspring is the better fit for free desktop users wanting a capable open client.

  • Spark Mail fits best

    Teams needing collaborative email workflows

  • Mailspring fits best

    Free desktop users wanting a capable open client

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Spark Mail 9.0/10 Visit ↗ Mailspring 8.6/10 Visit ↗
At a glance
Editor score 9.0 8.6
Ranking #4 in Email Clients #8 in Email Clients
Best for Teams needing collaborative email workflows Free desktop users wanting a capable open client
Pricing model Free plan + paid Free plan + paid
Starting price $99/user/yr —
Free plan ✓ ✓
Free trial 7 days —
Deployment Cloud, Desktop, Mobile Desktop
Platforms Windows, macOS, iOS, Android Windows, macOS, Linux
Support Live chat, Docs Email, Community, Docs
Integrations 20 integrations 12 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features Spark Mail 4/4 · Mailspring 3/4
Unified inbox ✓ ✓
Offline access ✓ ✓
Scheduled sending ✓ ✓
Calendar tools ✓ (best) —
Specs
App coverage Not checked yet Desktop
Account limit Not checked yet Not checked yet
Our review
Pros
  • Unified inbox, Smart Inbox, search, scheduling, and calendar tools
  • Shared inboxes, drafts, assignments, and private team comments
  • Available on macOS, Windows, iOS, and Android
  • Unified inbox and search across connected email accounts
  • Works on macOS, Windows, and Linux with offline access
  • Pro adds scheduling, tracking, reminders, templates, and snoozing
Cons
  • Offline management is limited beyond reading cached emails and attachments
  • Advanced collaboration features require a paid plan
  • Plus limits AI Meeting Notes to 40
  • Advanced productivity features require a paid Pro plan
  • Focused on desktop rather than mobile email access
  • Full-featured calendar support is still planned
Our verdict

Spark Mail is an email client for individuals, professionals, and teams that manage multiple accounts and need more structured workflows. It brings accounts from IMAP, iCloud, Exchange, Outlook, Yahoo, and Google into a unified inbox,…

Read the review →

Mailspring is a native desktop email client for people managing multiple accounts across macOS, Windows, or Linux. Its free plan covers core email functionality, multi-account support, and a unified inbox, while also providing advanced…

Read the review →
  1. Spark MailEmail Clients 9.0Free plan · 7-day trial
  2. MailspringEmail Clients 8.6Free plan

Strengths and trade-offs

  • Spark Mail — where it wins

    • Unified inbox, Smart Inbox, search, scheduling, and calendar tools
    • Shared inboxes, drafts, assignments, and private team comments
    • Available on macOS, Windows, iOS, and Android

    Where it doesn't

    • Offline management is limited beyond reading cached emails and attachments
    • Advanced collaboration features require a paid plan
    • Plus limits AI Meeting Notes to 40
  • Mailspring — where it wins

    • Unified inbox and search across connected email accounts
    • Works on macOS, Windows, and Linux with offline access
    • Pro adds scheduling, tracking, reminders, templates, and snoozing

    Where it doesn't

    • Advanced productivity features require a paid Pro plan
    • Focused on desktop rather than mobile email access
    • Full-featured calendar support is still planned

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update