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BlueMail alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave BlueMail: busy interface with many options, and some sync goes through the vendor's servers. We ranked 5 alternatives by how directly each one replaces BlueMail, then by reviews, real visits and how recently each app's facts were checked against its own website. Spark currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Spark logoSparkFree plan + paidNomacOS, Windows, iOS +13 of 366.5
2Thunderbird logoThunderbirdOpen sourceYesWindows, macOS, Linux +15 of 562.6
3Mailspring logoMailspringFree plan + paidYesmacOS, Windows, Linux4 of 459.6
4Canary Mail logoCanary MailFree plan + paidNomacOS, Windows, iOS +15 of 557.2
5EdEdison MailFree plan + paidNomacOS, iOS, Android3 of 355.3
  1. Spark logo

    1. SparkTop pick

    Best for: People and small teams who want one smart inbox across all their devices

    Free plan + paidmacOS, Windows, iOS, Android

    66.5

    score / 100

    Why switch from BlueMail

    A more polished cross-platform client, though without Linux.

    Pros

    • Free plan with unlimited accounts and a smart inbox
    • Shared threads, private comments and joint drafting for teams
    • Native apps on Mac, Windows, iOS and Android

    Cons

    • Mail syncs through Readdle's servers
    • Best AI and team features need a per-user subscription
    • No web app
    Visit Spark 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 Spark a good BlueMail alternative?

    Verified facts

    3 of 3 verified
    Free plan
    Yes, unlimited email accounts
    Checked Oct 25, 2026sparkmailapp.com(opens source in a new tab)
    Plus price
    $10 per user/month (monthly)
    Checked Oct 25, 2026sparkmailapp.com(opens source in a new tab)
    Pro price
    $20 per user/month (monthly)
    Checked Oct 25, 2026sparkmailapp.com(opens source in a new tab)
  2. Thunderbird logo

    2. Thunderbird

    Best for: Desktop users who want a free, private, customisable mail and calendar app

    Open sourceWindows, macOS, Linux, Android

    62.6

    score / 100

    Why switch from BlueMail

    Open source and donation-funded, with no vendor servers in the loop.

    Pros

    • Free, open source and funded by donations, with no ads
    • Built-in OpenPGP, calendar, filters and many add-ons
    • Runs on Windows, Mac, Linux and Android

    Cons

    • No web version and no released iOS app yet
    • Add-ons sometimes break after major updates
    • Exchange setups can need extra configuration
    Visit Thunderbird Details 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 Thunderbird a good BlueMail alternative?

    Verified facts

    5 of 5 verified
    Desktop platforms
    Windows, Linux, macOS
    Checked Oct 25, 2026thunderbird.net(opens source in a new tab)
    Price
    Free, funded by donations
    Checked Oct 25, 2026thunderbird.net(opens source in a new tab)
    Mobile app
    Open-source Android app
    Checked Oct 25, 2026thunderbird.net(opens source in a new tab)
    Android app origin
    Formerly K-9 Mail
    Checked Oct 25, 2026github.com(opens source in a new tab)
    Android app license
    Apache-2.0
    Checked Oct 25, 2026github.com(opens source in a new tab)
  3. Mailspring logo

    3. Mailspring

    Best for: Desktop users, especially on Linux, who want a modern free client

    Free plan + paidOpen sourcemacOS, Windows, Linux

    59.6

    score / 100

    Why switch from BlueMail

    Open-source desktop client with a cleaner interface.

    Pros

    • Free and open source on Mac, Windows and Linux
    • Clean interface with themes and keyboard shortcuts
    • Pro adds tracking, templates and send later at a low price

    Cons

    • No mobile apps
    • Small team, so features arrive slowly
    • Limited native Exchange support
    Visit Mailspring 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 Mailspring a good BlueMail alternative?

    Verified facts

    4 of 4 verified
    License
    GPL-3.0
    Checked Oct 25, 2026github.com(opens source in a new tab)
    Pro price
    $8 per month
    Checked Oct 25, 2026getmailspring.com(opens source in a new tab)
    Platforms
    Mac, Windows, Linux
    Checked Oct 25, 2026getmailspring.com(opens source in a new tab)
    Pro features
    Read receipts, link tracking, send later
    Checked Oct 25, 2026getmailspring.com(opens source in a new tab)
  4. Canary Mail logo

    4. Canary Mail

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

    Free plan + paidmacOS, Windows, iOS, Android

    57.2

    score / 100

    Why switch from BlueMail

    A cross-platform client with stronger encryption and AI features.

    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 ×0.369
    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 BlueMail 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)
  5. Ed

    5. 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 BlueMail

    Free, fast mobile client with strong unsubscribe tools.

    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 BlueMail 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)

The best BlueMail alternative for…

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

Spark logo

Best BlueMail alternative for most people

Spark

A more polished cross-platform client, though without Linux.

Thunderbird logo

Best BlueMail alternative for a free option

Thunderbird

Open source and donation-funded, with no vendor servers in the loop.

Mailspring logo

Best BlueMail alternative for a free plan you can upgrade

Mailspring

Open-source desktop client with a cleaner interface.

Thunderbird logo

Best BlueMail alternative for open source

Thunderbird

Open source and donation-funded, with no vendor servers in the loop.

Canary Mail logo

Best BlueMail alternative for Mac

Canary Mail

A cross-platform client with stronger encryption and AI features.

Spark logo

Best BlueMail alternative for Windows

Spark

A more polished cross-platform client, though without Linux.

Thunderbird logo

Best BlueMail alternative for Linux

Thunderbird

Open source and donation-funded, with no vendor servers in the loop.

Ed

Best BlueMail alternative for iPhone and Android

Edison Mail

Free, fast mobile client with strong unsubscribe tools.

BlueMail alternatives: common questions

What is the best alternative to BlueMail?

Spark ranks first right now. A more polished cross-platform client, though without Linux. Thunderbird and Mailspring follow it in our ranking.

Is there a free alternative to BlueMail?

Yes. Spark (free plan + paid), Thunderbird (open source), Mailspring (free plan + paid) and Canary Mail (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to BlueMail?

Yes: Thunderbird and Mailspring.

Which BlueMail alternatives work on Linux?

Thunderbird and Mailspring run on Linux.

Why do people switch from BlueMail?

The complaints we hear most: busy interface with many options; some sync goes through the vendor's servers; upgrade prompts in the free version.

How is this list ranked?

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