AI · alternatives · 2026

24 alternatives to Caspy

AI assistant for your email 🤖📧

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Caspy launched in 2017; newer entries below may have overtaken it.

1. 1CA
   Caspy – AI Assistant for Emails▲45

   2017 · caspy.com · its alternatives →

2. 2
   Caspy▲8

   Your AI Assistant for Emails

   2017 · caspy.com · its alternatives →

3. 3
   Cal.ai Email Assistant▲918

   World's first open source AI scheduling assistant

   2023 · cal.com · its alternatives →

4. 4
   Letty▲88

   Craft perfect emails faster with your personal AI assistant

   2023 · useletty.com · its alternatives →

5. 5
   Slashy▲474

   The AI assistant that does email for you

   Jun 2026 · slashy.com · its alternatives →

6. 6
   Shortwave AI Assistant▲163

   Your AI-powered executive email assistant

   2023 · shortwave.com · its alternatives →

7. 7
   MailBunny.ai▲86

   Email based AI assistant, collaborate, summarize & more

   2023 · its alternatives →

8. 8
   Inbox AI▲201

   AI-Powered Personal Productivity

   2024 · its alternatives →

9. 9
   Shortwave AI Email Assistant 2.0▲214

   The ultimate search, analysis, and productivity companion

   2024 · shortwave.com · its alternatives →

10. 10
    Touch AI▲248

    AI email for sales

    2024 · its alternatives →

11. 11
    Lavender▲233

    A complete AI toolkit for amazing 1:1 emails in your inbox.

    2020 · lavender.ai · its alternatives →

12. 12
    Free AI Email Assistant▲121

    Forward, add context, generate 👉 no more boring replies

    2024 · its alternatives →

13. 13
    AI Emailyfree tier, from $14.99/mo▲165

    Your AI inbox that writes like you + replies on autopilot

    Jul 2026 · aiemaily.com · its alternatives →

14. 14
    Warmer.ai▲212

    Generate personalized emails in seconds, written by AI

    2021 · warmer.ai · its alternatives →

15. 15
    AIMail▲51

    Your AI email assistant for faster email communication

    2024 · its alternatives →

16. 16
    superReply▲119

    No more typing, no more stress - let AI handle your emails

    2023 · superreply.co · its alternatives →

17. 17
    Spark +AI▲181

    Your email productivity, supercharged with AI

    2023 · sparkmailapp.com · its alternatives →

18. 18
    CalBot▲115

    Carly lets you create custom AI agents with 120+ integrations. Give each agent an inbox, instructions, and tool access for email, CRM, scheduling, research, and operations.

    2025 · calbotservice.com · its alternatives →

19. 19
    Lola AI▲116

    AI-powered emails in seconds

    2021 · its alternatives →

20. 20
    Hemy▲155

    Your sales follow-up assistant

    2023 · its alternatives →

21. 21
    Parity▲103

    Your personal AI scheduling assistant

    2024 · its alternatives →

22. 22
    Sendster AI▲96

    AI enabled newsletter software for Amazon SES, SMTPs

    2023 · getsendster.in · its alternatives →

23. 23
    FranzAI ▲106

    The free AI email assistant

    2024 · gpt.franzai.com · its alternatives →

24. 24
    Ayfie Personal Assistant▲77

    Upload you documents, ask questions and create new content

    2023 · ayfie.com · 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 →