Growth · alternatives · 2026

24 alternatives to Customer Inbox in Slack by Across

Turn Slack channels into a customer inbox and helpdesk

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Customer Inbox in Slack by Across launched in 2020; newer entries below may have overtaken it.

1. 1
   Intercom for Slack▲482

   Chat, qualify and close leads directly from Slack

   2018 · intercom.com · its alternatives →

2. 2
   Slack Shared Channels▲480

   Work with anyone in Slack

   2017 · slack.com · its alternatives →

3. 3
   Slack with your Users▲339

   Speak to your app's users entirely within Slack

   2015 · its alternatives →

4. 4
   Chatterbox▲223

   Live chat with your to-be customers straight from your Slack

   2017 · retainly.co · its alternatives →

5. 5
   Many to Slack▲182

   A public chat room fully integrated into Slack

   2017 · get.slaask.com · its alternatives →

6. 6
   Thena for Customer Support▲248

   Manage and service your customers in Slack

   2022 · thena.ai · its alternatives →

7. 7
   ClearFeed▲510

   Convert multiple Slack channels into a shared Inbox

   2023 · clearfeed.ai · its alternatives →

8. 8
   Relay Channel Manager▲63

   Manage hundreds of Slack customer channels effortlessly

   2023 · relay.fyi · its alternatives →

9. 9
   Calls on Slack▲725

   Make voice calls in Slack

   2016 · its alternatives →

10. 10
    LiveChat for Slack▲69

    Move chats to Slack and talk to clients wherever you want

    2022 · livechat.com · its alternatives →

11. 11AS
    Across – Supercharge your customer experience in Slack▲14

    Hi HN! We're Parthi and Kunal from Across (https://acrossapp.com). Across allows you to scale high touch experience you provide your customers when you create shared Slack channels with them. With Across, you can track customer requests, automate responses and message customers across Slack channels. We've built and shipped 7 products recently and we always create shared Slack channels with our customers. This is great for creating a tight feedback loop between us, and making sure we're extremely responsive to customer requests. The problem is that this experience doesn't scale.…

    2020 · its alternatives →

12. 12
    Thread Messaging on Slack▲710

    Keep conversations organized and easy to follow with Threads

    2017 · slack.com · its alternatives →

13. 13
    Slack Message Buttons▲611

    Making messages more interactive with buttons

    2016 · slack.com · its alternatives →

14. 14
    SlackPass▲276

    Subscription access to anything with Slack

    2017 · launchpass.com · its alternatives →

15. 15
    Hey for Slack▲133

    Make your community feel welcomed

    2022 · its alternatives →

16. 16
    Drift for Slack▲200

    Talk to your website visitors & customers in real-time

    2016 · drift.com · its alternatives →

17. 17
    Agent▲19

    Customer support in Slack

    2021 · foqal.io · its alternatives →

18. 18
    Customer.io Slack Action▲87

    Send notifications into Slack, based on user activity

    2016 · customer.io · its alternatives →

19. 19
    SharedBox▲100

    Shared inbox for your team; in Slack

    2018 · its alternatives →

20. 20
    HelpSpace▲112

    Simplify your customer support

    2021 · helpspace.com · its alternatives →

21. 21
    Dialogs by Slack▲396

    Build interactive forms in Slack that do all sorts of things

    2017 · docs.slack.dev · its alternatives →

22. 22
    Slackmin▲313

    Slack superpowers for business ops

    2022 · its alternatives →

23. 23
    Reviewflowz▲122

    Review monitoring Slackbot

    2022 · reviewflowz.com · its alternatives →

24. 24
    Dispatch▲402

    Priority inbox for Slack

    2023 · dispatch.do · 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 →