AI · alternatives · 2026

24 alternatives to RPLY

NOX is the AI-powered messaging inbox for macOS, unifying iMessage, WhatsApp, Slack, email and more.

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
   Franz▲877

   Franz combines WhatsApp, Slack, Telegram, Gmail, Outlook, and native Signal in one desktop app with AI summaries, workspaces, and privacy-conscious local features.

   2016 · meetfranz.com · its alternatives →

2. 2
   Inbox Zero▲821

   Clean Up Your Inbox In Minutes Newsletter management, AI automation, and email analytics. Inbox Zero is the open-source email app that puts you back in control of your inbox.

   2023 · getinboxzero.com · its alternatives →

3. 3
   Slack for Mac▲937

   A new, improved Slack desktop app for Mac

   2016 · slack.com · its alternatives →

4. 4
   Redkix Beta▲121

   Team messaging powered by email.

   2017 · its alternatives →

5. 5
   Astro▲308

   AI meets email for Mac, iOS and Android

   2017 · its alternatives →

6. 6
   Front 3.0▲400

   Team Inboxes for Email, Twitter, Text & more

   2016 · front.com · its alternatives →

7. 7
   April▲664

   Reach Inbox Zero by speaking with your email & calendar

   2025 · apps.apple.com · its alternatives →

8. 8
   Astro 3.0▲264

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

   2018 · its alternatives →

9. 9
   Revo AI Email Assistant▲338

   AI with accurate replies that tackle the next-step tasks

   Feb 2026 · revo.ai · its alternatives →

10. 10
    Front 2.0▲500

    Shared team inboxes to manage Email, Twitter, SMS & more

    2014 · front.com · its alternatives →

11. 11
    ReplylessAI▲122

    AI Email app that's affordable, Hit Inbox Zero

    Mar 2026 · replyless.ai · its alternatives →

12. 12
    Slack 4.0▲472

    A snappier, more efficient Slack desktop experience

    2019 · slack.com · its alternatives →

13. 13
    Astrobot for Slack▲180

    Manage your inbox from Slack

    2017 · its alternatives →

14. 14
    GhostReply▲82

    GhostReply is an AI iMessage auto-reply app for Mac that learns how you text. Try 10 replies free, then pay $4.99 once. No AI API key required.

    Feb 2026 · ghostreply.lol · its alternatives →

15. 15
    Inbox AI▲201

    AI-Powered Personal Productivity

    2024 · its alternatives →

16. 16
    IM+ for Mac▲90

    The messaging app for all your messaging

    2016 · apps.apple.com · its alternatives →

17. 17
    Outboundly.ai▲190

    AI-powered cold outreach platform

    2023 · outboundly.ai · its alternatives →

18. 18
    ToolBox MacOS▲108

    Let ChatGPT interact with your Mac

    2023 · github.com · its alternatives →

19. 19
    Redesk Beta▲200

    Async-first messaging app with goals, deadlines and upvotes.

    2020 · its alternatives →

20. 20
    ChatX▲121

    A powerful ChatGPT client for iOS/macOS (GPT3.5 & GPT-4)

    2023 · apps.apple.com · its alternatives →

21. 21
    Astro for Android▲174

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

    2017 · its alternatives →

22. 22
    Singlebox▲87

    All-in-one messenger

    2021 · webcatalog.io · its alternatives →

23. 23
    FiloMail for macOS▲158

    Instantly turn your Mac inbox into a to-do list

    2025 · filomail.com · its alternatives →

24. 24
    Messages for Macintosh – a classic Mac iMessage client▲211

    An Apple iMessage client for classic Macintosh (System 2.0 - MacOS 9.2.2) - CamHenlin/MessagesForMacintosh

    2022 · github.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 →