Growth · alternatives · 2026

24 alternatives to Slimbox

Slim your Inbox with email Daily Summaries.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Slimbox launched in 2022; newer entries below may have overtaken it.

1. 1SA
   Slimbox – a simple tool to declutter your inbox in seconds▲11

   2020 · slimboxapp.com · its alternatives →

2. 2
   Slimbox▲3

   Declutter your inbox in seconds.

   2020 · slimboxapp.com · its alternatives →

3. 3
   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 →

4. 4
   Silent Inbox for Gmail▲251

   Receive unimportant emails and newsletters on your schedule

   2020 · workspace.google.com · its alternatives →

5. 5
   PureBox.ai▲139

   Review-first AI cleanup for your real Gmail inbox.

   Jul 2026 · purebox.ai · its alternatives →

6. 6
   Superinbox▲531

   Email vibing in your Gmail / Outlook

   Oct 2025 · superinbox.com · its alternatives →

7. 7
   InboxPurge▲100

   The fastest way to a cleaner Gmail inbox

   2023 · inboxpurge.com · its alternatives →

8. 8
   Courier▲141

   Your inbox emojified and summarized

   2017 · its alternatives →

9. 9
   Inbox Narrator▲84

   AI-powered email summaries delivered by voice

   2023 · inboxnarrator.com · its alternatives →

10. 10
    Hello Inbox▲283

    Hey HN, I built an email deliverability SaaS with a RAG system. It's trained on all my knowledge and hundreds of real deliverability use cases from 4+ years experience as an Email Deliverability Specialist on Upwork. It solves a frustration problem a lot of businesses are experiencing. I'm looking for feedback so let me know in the comments.

    Aug 2026 · helloinbox.email · its alternatives →

11. 11
    Slide to Subscribe▲206

    Let people subscribe to your newsletter with just a slide.

    2020 · subscribe.to · its alternatives →

12. 12
    Thinbox▲69

    Collect email sending data across your email services

    2016 · its alternatives →

13. 13
    SubscriptionZero▲139

    Declutter your Inbox by combining your newsletters emails

    2019 · subscriptionzero.com · its alternatives →

14. 14
    Sweady▲96

    Organize your inbox automatically

    2023 · its alternatives →

15. 15
    InboxThis▲167

    Send any webpage to your inbox in 5 seconds

    2022 · chromewebstore.google.com · its alternatives →

16. 16
    SumBox▲38

    Newsletters without the noise

    2024 · its alternatives →

17. 17
    Summ▲50

     Save 60% of your time spent reading emails

    2024 · its alternatives →

18. 18
    Inbox Digest AI▲13

    Your free daily AI email briefing. See what matters in 60s

    Nov 2025 · inboxdigest.co · its alternatives →

19. 19
    Smart email filters to unfuck your email▲59

    Fix your inbox instantly with smart filters

    2025 · unfuck.email · its alternatives →

20. 20
    Shortwave Smart Summaries▲124

    AI email summaries, read less, do more

    2023 · shortwave.com · its alternatives →

21. 21
    Trimbox▲73

    One-click unsubscribe for mailing lists, straight from Gmail

    2021 · trimbox.io · its alternatives →

22. 22
    DumpBox▲16

    Your inbox for everything else.

    2025 · its alternatives →

23. 23
    SaneBox iOS App▲83

    Smart AI email cleaner

    2023 · apps.apple.com · its alternatives →

24. 24
    Inbox Pause 2.0 by Boomerang▲138

    Quiet your inbox, amplify your focus

    2024 · inboxpause.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 →