Growth · alternatives · 2026

24 alternatives to Astro

AI meets email for Mac, iPhone, and Android

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Astro launched in 2018; newer entries below may have overtaken it.

1. 1
   Astro▲309

   AI meets email for Mac, iOS and Android

   2017 · its alternatives →

2. 2
   Astro for Android▲174

   Modern email app for Mac, iOS, and Android, powered by AI

   2017 · its alternatives →

3. 3
   Astrobot for Slack▲180

   Manage your inbox from Slack

   2017 · its alternatives →

4. 4
   Astrobot Voice▲85

   Talk to your inbox directly from Astro’s iOS & Android apps

   2017 · its alternatives →

5. 5
   Astro 3.0▲264

   Intelligent inbox and calendar for iOS, Android, Mac & Slack

   2018 · its alternatives →

6. 6
   Spark for Mac▲1,058

   Beautiful and intelligent email app

   2016 · sparkmailapp.com · its alternatives →

7. 7
   Inbox AI▲201

   AI-Powered Personal Productivity

   2024 · its alternatives →

8. 8
   Notion▲580

   Artificial intelligence-powered email.

   2015 · its alternatives →

9. 9
   Spark +AI▲181

   Your email productivity, supercharged with AI

   2023 · sparkmailapp.com · its alternatives →

10. 10
    Cal.ai Email Assistant▲918

    World's first open source AI scheduling assistant

    2023 · cal.com · its alternatives →

11. 11
    April▲664

    Reach Inbox Zero by speaking with your email & calendar

    2025 · apps.apple.com · its alternatives →

12. 12
    CloudMagic for Mac▲252

    Simple, beautiful & blazing fast email app now on Mac.

    2016 · its alternatives →

13. 13
    TaCo▲135

    Manage Gmail and Slack in one place with AI

    2022 · its alternatives →

14. 14
    Loop Email▲257

    Emailing for teams: Organize your Inbox into channels 💌

    2018 · its alternatives →

15. 15
    Newton by CloudMagic▲118

    Supercharged emailing with space-age features

    2016 · its alternatives →

16. 16
    Harmony AI Voice Assistant▲273

    Manage email and calendar with voice

    2025 · useharmony.com · its alternatives →

17. 17
    TextCraft AI▲181

    Smart inbox, smart emails - AI at your service

    2023 · chromewebstore.google.com · its alternatives →

18. 18
    Smart Calendars AI▲89

    Turn text, photos, voice into events & reminders in seconds

    2025 · smartcalendars.ai · its alternatives →

19. 19
    Shortwave AI Email Assistant 2.0▲214

    The ultimate search, analysis, and productivity companion

    2024 · shortwave.com · its alternatives →

20. 20
    June.ai▲261

    A communication hub that replaces email

    2018 · its alternatives →

21. 21
    Zendesk Inbox for iOS▲118

    Team up on email, anywhere your team goes

    2015 · its alternatives →

22. 22
    AI Easy Newsletter Studio▲269

    Effortless newsletter success with AI power

    2023 · valerianotion.gumroad.com · its alternatives →

23. 23
    Sendster AI▲96

    AI enabled newsletter software for Amazon SES, SMTPs

    2023 · getsendster.in · its alternatives →

24. 24
    Ghost AI▲86

    The First AI-Powered Email Productivity Platform

    2023 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →