AI · alternatives · 2026

24 alternatives to Replyfast

Write better X replies in seconds, in your own voice

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   ReplyPulse.com▲59

   Engage smarter to grow on X/Twitter

   2024 · replypulse.com · its alternatives →

2. 2
   Reply Ninja▲220

   Instant Inline replies in Gmail

   2019 · its alternatives →

3. 3
   Replymer▲465

   We monitor Reddit and X for the conversations where buyers ask for what you sell, write a natural reply that recommends your product, and hand it to you to post in one click. X publishes automatically.

   2025 · replymer.com · its alternatives →

4. 4
   ReplyMore▲442

   Get your first 1000 followers on Twitter by replying more

   2024 · its alternatives →

5. 5
   Reply▲325

   Send cold emails that feel warm

   2015 · reply.io · its alternatives →

6. 6
   Reply 2.0▲230

   Automate your personal emails + calls + tasks

   2019 · reply.io · its alternatives →

7. 7
   Email Warm-Up Tool by Reply▲311

   Make sure your emails land in the inbox, not spam

   2021 · reply.io · its alternatives →

8. 8
   Speed Reply▲17

   Supercharge your LinkedIn replies with smart templates

   2025 · speedreply.app · its alternatives →

9. 9
   NameInserter for Chrome▲181

   Adds their name as you reply on Twitter

   2023 · name-inserter.unicornplatform.page · its alternatives →

10. 10
    FastReply▲86

    Finally a lightweight template system for your emails!

    2020 · chromewebstore.google.com · its alternatives →

11. 11
    TextPie Text Expander & Canned Responses▲66

    Write once, reply forever with TextPie canned responses

    2024 · its alternatives →

12. 12
    ReplyBro ▲7

    Grow your x reach by replying smarter

    Oct 2025 · replybro.app · its alternatives →

13. 13
    TwitterGPT Chrome Extension▲144

    Respond to tweets with ChatGPT

    2022 · chromewebstore.google.com · its alternatives →

14. 14
    ReplyUp▲78

    Send customized follow-up emails for free

    2016 · replyup.com · its alternatives →

15. 15
    ReplyGenie:AI Reply & Post Assistant▲15

    AI-powered Chrome extension for posts and replies

    2025 · chromewebstore.google.com · its alternatives →

16. 16
    ReplyMate ▲13

    Stop overthinking emails — write replies in seconds

    Apr 2026 · replymateai.app · its alternatives →

17. 17
    ReplySurge▲3

    10x your brand visibility on X, Reddit & LinkedIn

    Jul 2026 · replysurge.com · its alternatives →

18. 18
    superReply▲119

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

    2023 · superreply.co · its alternatives →

19. 19
    ReplyGen▲11

    Personalized AI reply co-pilot for LinkedIn, X & Threads

    Jun 2026 · replygen.app · its alternatives →

20. 20
    ReplyVoice▲69

    Reply to students and fans with audio messages anywhere

    2021 · chromewebstore.google.com · its alternatives →

21. 21
    The Reply Project▲35

    Reply to your emails 10x faster

    2023 · gmass.co · its alternatives →

22. 22
    ReplyBox▲87

    A privacy-focused comment system

    2023 · its alternatives →

23. 23
    EzReply - AI That Sounds Like You▲34

    1-Click Perfect Replies/DMs in Seconds

    2025 · ezreply.co · its alternatives →

24. 24
    XposterAI▲7

    Engage with X effortlessly

    2025 · xposterai.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 →