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Spark alternatives: 6 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Spark: mail syncs through Readdle's servers, and best AI and team features need a per-user subscription. We ranked 6 alternatives by how directly each one replaces Spark, then by reviews, real visits and how recently each app's facts were checked against its own website. Canary Mail currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Canary Mail logoCanary MailFree plan + paidNomacOS, Windows, iOS +15 of 566.5
2Superhuman Mail logoSuperhuman MailPaidNoWeb, macOS, Windows +23 of 362.6
3Missive logoMissivePaidNoWeb, macOS, Windows +34 of 459.6
4EdEdison MailFree plan + paidNomacOS, iOS, Android3 of 355.3
5BlueMail logoBlueMailFree plan + paidNoWindows, macOS, Linux +24 of 453.6
  1. Canary Mail logo

    1. Canary MailTop pick

    Best for: Individuals who want PGP and AI features in a cross-platform client at a low price

    Free plan + paidmacOS, Windows, iOS, Android

    66.5

    score / 100

    Why switch from Spark

    Similar cross-platform client with PGP encryption and lower paid tiers.

    Pros

    • Built-in PGP and an encrypted SecureSend option
    • One license covers all platforms
    • Low-cost paid tiers

    Cons

    • Smaller company, so updates can be uneven
    • Most useful features are in paid tiers
    • No web app
    Visit Canary Mail Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Canary Mail a good Spark alternative?

    Verified facts

    5 of 5 verified
    Free plan
    Yes
    Checked Oct 25, 2026canarymail.io(opens source in a new tab)
    Growth plan
    $3/month billed yearly
    Checked Oct 25, 2026canarymail.io(opens source in a new tab)
    Pro+ plan
    $10/month billed yearly
    Checked Oct 25, 2026canarymail.io(opens source in a new tab)
    Free trial
    7 days
    Checked Oct 25, 2026canarymail.io(opens source in a new tab)
    End-to-end encryption
    PGP
    Checked Oct 25, 2026canarymail.io(opens source in a new tab)
  2. Superhuman Mail logo

    2. Superhuman Mail

    Best for: Executives and heavy email users on Gmail or Outlook who value speed over price

    PaidWeb, macOS, Windows, iOS, Android

    62.6

    score / 100

    Why switch from Spark

    A premium, keyboard-first inbox for heavy email users on Gmail or Outlook.

    Pros

    • Very fast, keyboard-first workflow
    • Split inbox and reminders keep important threads visible
    • Strong AI drafting and inbox search

    Cons

    • Expensive, with no free plan
    • Only works with Gmail and Microsoft accounts
    • Now sold as part of a wider suite
    Visit Superhuman Mail Compare with SparkDetails and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Superhuman Mail a good Spark alternative?

    Verified facts

    3 of 3 verified
    Supported accounts
    Gmail and Outlook
    Checked Oct 25, 2026superhuman.com(opens source in a new tab)
    Split Inbox
    Yes
    Checked Oct 25, 2026superhuman.com(opens source in a new tab)
    Business plan (includes Mail)
    $33/member/month billed annually
    Checked Oct 25, 2026superhuman.com(opens source in a new tab)
  3. Missive logo

    3. Missive

    Best for: Small teams that share email addresses and want to collaborate on replies

    PaidWeb, macOS, Windows, Linux, iOS, Android

    59.6

    score / 100

    Why switch from Spark

    Goes further on team collaboration, with shared inboxes, assignments and SMS.

    Pros

    • Shared inboxes with assignments and private comments
    • Email, chat, SMS and WhatsApp in one app
    • Apps for every platform including Linux

    Cons

    • Per-user pricing adds up for larger teams
    • Overkill for individual use
    • Lacks full help-desk features such as a knowledge base
    Visit Missive Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Missive a good Spark alternative?

    Verified facts

    4 of 4 verified
    Free trial
    30 days
    Checked Oct 25, 2026missiveapp.com(opens source in a new tab)
    Starter price
    $14 per user/month billed yearly
    Checked Oct 25, 2026missiveapp.com(opens source in a new tab)
    Starter team size
    Up to 5 users
    Checked Oct 25, 2026missiveapp.com(opens source in a new tab)
    Compliance
    SOC 2 Type II
    Checked Oct 25, 2026missiveapp.com(opens source in a new tab)
  4. Ed

    4. Edison Mail

    Best for: People who want a free, fast multi-account inbox on phone and Mac

    Free plan + paidmacOS, iOS, Android

    55.3

    score / 100

    Why switch from Spark

    A free multi-account client with fast unsubscribe and sender blocking.

    Pros

    • Free with a clean unified inbox
    • One-tap unsubscribe and sender blocking
    • Automatically groups travel, bills and packages

    Cons

    • Business model involves analysing anonymised email data
    • No Windows or web app
    • Past security incident with account sync
    Visit Edison Mail Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Edison Mail a good Spark alternative?

    Verified facts

    3 of 3 verified
    Price
    Free
    Checked Oct 25, 2026mail.edison.tech(opens source in a new tab)
    Mobile
    iPhone and Android
    Checked Oct 25, 2026mail.edison.tech(opens source in a new tab)
    Mac app
    Yes
    Checked Oct 25, 2026edison.tech(opens source in a new tab)
  5. BlueMail logo

    5. BlueMail

    Best for: People who want the same free mail app on every device, including Linux

    Free plan + paidWindows, macOS, Linux, iOS, Android

    53.6

    score / 100

    Why switch from Spark

    A free cross-platform client that also covers Linux.

    Pros

    • Runs on iOS, Android, Mac, Windows and Linux
    • Free personal plan with unlimited accounts
    • Built-in PGP encryption

    Cons

    • Busy interface with many options
    • Some sync goes through the vendor's servers
    • Upgrade prompts in the free version
    Visit BlueMail Details and reviews
    How this score is calculated
    Editorial fit ×0.357
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is BlueMail a good Spark alternative?

    Verified facts

    4 of 4 verified
    Free plan
    Yes, unlimited accounts
    Checked Oct 25, 2026bluemail.me(opens source in a new tab)
    Platforms
    iOS, Android, macOS, Windows, Linux
    Checked Oct 25, 2026bluemail.me(opens source in a new tab)
    Encryption
    PGP
    Checked Oct 25, 2026bluemail.me(opens source in a new tab)
    Plus free trial
    7 days
    Checked Oct 25, 2026bluemail.me(opens source in a new tab)

The best Spark alternative for…

The highest-ranked app in this list for each need.

Canary Mail logo

Best Spark alternative for most people

Canary Mail

Similar cross-platform client with PGP encryption and lower paid tiers.

Airmail logo

Best Spark alternative for a free plan you can upgrade

Airmail

An Apple-only client with more customisation and no per-user team pricing.

Superhuman Mail logo

Best Spark alternative for Mac

Superhuman Mail

A premium, keyboard-first inbox for heavy email users on Gmail or Outlook.

Missive logo

Best Spark alternative for Windows

Missive

Goes further on team collaboration, with shared inboxes, assignments and SMS.

BlueMail logo

Best Spark alternative for Linux

BlueMail

A free cross-platform client that also covers Linux.

Ed

Best Spark alternative for iPhone and Android

Edison Mail

A free multi-account client with fast unsubscribe and sender blocking.

Superhuman Mail logo

Best Spark alternative for working in the browser

Superhuman Mail

A premium, keyboard-first inbox for heavy email users on Gmail or Outlook.

Spark alternatives: common questions

What is the best alternative to Spark?

Canary Mail ranks first right now. Similar cross-platform client with PGP encryption and lower paid tiers. Superhuman Mail and Missive follow it in our ranking.

Is there a free alternative to Spark?

Yes. Canary Mail (free plan + paid), Airmail (free plan + paid), Edison Mail (free plan + paid) and BlueMail (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Spark?

None of the 6 alternatives in this list is open source.

Which Spark alternatives work on Linux?

Missive and BlueMail run on Linux.

Why do people switch from Spark?

The complaints we hear most: mail syncs through Readdle's servers; best AI and team features need a per-user subscription; no web app.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Spark, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.