Growth · alternatives · 2026

24 alternatives to Letty

Craft perfect emails faster with your personal AI assistant

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 2 we have checked on their own sites, 1 of them free or with a free tier. Letty launched in 2023; newer entries below may have overtaken it.

1. 1
   superReply▲119

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

   2023 · superreply.co · its alternatives →

2. 2
   Free AI Email Assistant▲121

   Forward, add context, generate 👉 no more boring replies

   2024 · its alternatives →

3. 3
   TextCraft AI▲181

   Smart inbox, smart emails - AI at your service

   2023 · chromewebstore.google.com · its alternatives →

4. 4
   MailBunny.ai▲86

   Email based AI assistant, collaborate, summarize & more

   2023 · its alternatives →

5. 5
   Warmer.ai▲212

   Generate personalized emails in seconds, written by AI

   2021 · warmer.ai · its alternatives →

6. 6
   Warmy.io▲417

   Boost your email deliverability with an AI driven algorithm

   2024 · warmy.io · its alternatives →

7. 7
   compose.ai▲326

   Write email at the speed of thought with AI.

   2020 · compose.ai · its alternatives →

8. 8
   Lavender▲233

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

   2020 · lavender.ai · its alternatives →

9. 9
   Slashy▲474

   The AI assistant that does email for you

   Jun 2026 · slashy.com · its alternatives →

10. 10
    AI Emailyfree tier, from $14.99/mo▲165

    Your AI inbox that writes like you + replies on autopilot

    Jul 2026 · aiemaily.com · its alternatives →

11. 11
    Caspy▲167

    AI assistant for your email 🤖📧

    2017 · its alternatives →

12. 12
    Quicky AIfrom $29/mo▲280

    Using AI is made easy, productive and instant on any website

    2023 · quickyai.com · its alternatives →

13. 13
    Spark +AI▲181

    Your email productivity, supercharged with AI

    2023 · sparkmailapp.com · its alternatives →

14. 14
    Lola AI▲116

    AI-powered emails in seconds

    2021 · its alternatives →

15. 15
    ComposeMate: AI Email Writing Sidekick▲154

    Write emails like a pro in seconds from inbox directly

    2023 · anmolmishra.gumroad.com · its alternatives →

16. 16
    SmartWriter▲245

    Scale with AI-personalised cold emails

    2021 · smartwriter.ai · its alternatives →

17. 17
    Warmest.ai▲96

    AI that drafts your emails in your style, without your help.

    2023 · its alternatives →

18. 18
    AIMail▲51

    Your AI email assistant for faster email communication

    2024 · its alternatives →

19. 19
    Warmy.io▲194

    Auto all-in-one tool to make your email channel reliable

    2022 · warmy.io · its alternatives →

20. 20
    Anna Assistant▲137

    Your personal assistant on Google Chrome

    2018 · chromewebstore.google.com · its alternatives →

21. 21
    Shortwave AI Assistant▲163

    Your AI-powered executive email assistant

    2023 · shortwave.com · its alternatives →

22. 22
    BestRegards AI▲66

    Use the AI to reply to emails & messages 10x faster

    2023 · bestregards.app · its alternatives →

23. 23
    HumanInbox▲69

    Your AI personal assistant for email, on your phone

    Apr 2026 · gethumaninbox.com · its alternatives →

24. 24
    Autopilot▲78

    Send your best personalized emails with AI.

    2020 · ubico.io · 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 →