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Instead of Spark Mail

Spark Mail alternatives

Spark Mail organizes multiple accounts in one inbox, using Smart Inbox to separate priority messages from other mail. It works across Android, iOS, macOS, and Windows, with offline access, scheduled sending, and calendar tools. Teams can use private comments, delegated ownership, shared information, progress tracking, and deadlines. Spark also provides integrations and AI functions for translating, summarizing, drafting, proofreading, and acting on email content. Its free plan includes unlimited accounts, Smart Inbox, notifications, productivity features, and Calendar.

  1. 1

    Mozilla Thunderbird

    by Mozilla Thunderbird
    Free plan Open source AndroidLinuxMac+1

    Open-source email across desktop platforms — Thunderbird is free forever and open source, while Spark adds team collaboration and AI features.

    9.3 Free plan Visit site
  2. 2

    Zoho Mail

    by Zoho Mail
    Free plan AndroidAPIExtension+5

    Custom-domain business email hosting — Zoho Mail provides custom-domain hosting and 5 GB mailboxes, unlike Spark’s email-client focus.

    7.7 Free plan · paid from $1/user/mo (annual) · 15-day trial Visit site
  3. 3

    eM Client

    by eM Client
    Free plan AndroidiPhoneMac+1

    Two-account email users wanting broad app coverage — eM Client limits free accounts to two, while Spark’s free plan allows unlimited email accounts.

    7.7 Free plan · paid from $39.95/user/yr · 30-day trial Visit site
  4. 4

    Mailbutler Smart Assistant

    by Mailbutler Smart Assistant
    Free plan AndroidExtensioniPhone+4

    AI drafting in Apple Mail, Gmail, or Outlook — Mailbutler focuses on drafting emails and replies from keywords, rather than Spark’s broader inbox and team tools.

    7.6 Free plan · paid from $4/user/mo (annual) · 14-day trial Visit site
  5. 5

    Mailspring

    by Mailspring
    Free plan LinuxMacWindows

    Desktop unified inbox without calendar tools — Mailspring offers a desktop unified inbox but no calendar tools, while Spark includes Calendar across platforms.

    7.5 Free plan · paid from $8/mo Visit site
  6. 6

    Newton Mail

    by Newton Mail
    Free plan AndroidiPhoneMac+1

    Two-account email across major platforms — Newton Mail caps accounts at two and starts below Spark’s paid price, while retaining unified inbox and calendar tools.

    7.6 Free plan · paid from $5/user/mo (annual) · 14-day trial Visit site
  7. 7

    BlueMail

    by BlueMail
    Free plan AndroidiPhoneLinux+2

    Unified inbox across many operating systems — BlueMail combines providers in a unified inbox across Android, iOS, Linux, macOS, and Windows, without Spark’s stated AI details.

    7.6 Free plan · 7-day trial Visit site
  8. 8

    Metis Mail

    by Metis Mail
    Free plan Open source APISelf-hostedWeb
    8.8 Free plan · paid from $12/user/mo Visit site
  9. 9

    aerc

    by aerc
    Free plan Open source AndroidLinuxMac+2
    8.8 Free plan Visit site
  10. 10

    Avidemux

    Free plan Open source LinuxMacWeb+1
    8.5 Free plan Visit site
  11. 11

    Iceraven

    Free plan Open source Android
    8.1 Free plan Visit site
  12. 12

    Spike

    Free plan AndroidiPhoneMac+2
    7.6 Free plan · paid from $4/user/mo (annual) Visit site
  13. 13

    Canary Mail

    Free plan AndroidiPhoneMac+1
    7.6 Free plan · paid from $3/user/mo (annual) · 7-day trial Visit site
  14. 14

    Edison Mail

    by Edison Mail
    Free plan AndroidiPhoneMac+1
    7.6 Free plan · paid from $14.99/mo Visit site
  15. 15

    Roundcube

    by Roundcube
    Free plan LinuxSelf-hostedWeb
    7.5 Free plan Visit site
  16. 16

    Epistles Mail

    Free plan AndroidiPhoneLinux+3
    7.5 Free plan · paid from $35/yr · 14-day trial Visit site
  17. 17

    Guvercin

    Free plan LinuxMacWeb+1
    7.5 Free plan Visit site
  18. 18

    Shortwave

    Free plan AndroidiPhoneMac+2
    7.5 Free plan · paid from $30/user/mo · 14-day trial Visit site
  19. 19

    Dove

    by Dove
    Free plan AndroidiPhoneMac+2
    7.5 Free plan · paid from $20/mo · 7-day trial Visit site
  20. 20

    Meron

    Free plan AndroidiPhoneLinux+2
    7.5 Free plan Visit site
  21. 21

    TypeApp

    Free plan AndroidiPhoneLinux+1
    7.5 Free plan Visit site
  22. 22

    Saymail

    by Saymail
    Free plan AndroidiPhoneLinux+2
    7.5 Free plan · paid from €3.99/mo Visit site
  23. 23

    Apple Mail

    Free plan iPhoneMac
    7.4 Free plan Visit site
  24. 24

    PigeonPost

    Free plan LinuxMacWindows
    7.4 Free plan Visit site

Readers may seek another app when Spark’s paid pricing, AI quotas, or platform coverage do not fit. Spark starts at $8.25 per user per month with annual billing; Plus costs $10 monthly per user and Pro $20. Alternatives may emphasize open-source desktop email, custom-domain hosting, broader device support, lower prices, or focused AI writing. Check account limits, calendar availability, offline use, supported operating systems, and whether collaboration or automation tools match your workflow before switching.

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