Alternatives

Products that do what Shunbox does

Your inbox, sorted before you open it.

1
Superinbox▲531
Email vibing in your Gmail / Outlook
Oct 2025
2
Inbox Zero▲821
Clean up your inbox in minutes, open source
2023 · getinboxzero.com
3
Upstream▲977
The inbox designed for humans and agents
Jun 2026 · upstream.do
4
Inbox by Google▲1,148
Next generation inbox
2014 · google.com
5
ZeroInbox.ai▲130
AI email organizer
2024
6
Zennbox▲255
Save & organize your resources. Take notes with AI
Sep 2025
7
Sortd for Gmail▲555
Trello for Gmail - Transform your email into organized lists
2015
8MS
Make senders work to get into your inbox▲44
Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…
Jul 2026 · captchainbox.com
9
Revo AI Email Assistant▲342
AI with accurate replies that tackle the next-step tasks
Feb 2026
10
Inbox Zero Tabs▲400
Split inbox tabs for Gmail. 100% private. 100% free
2025
11
Notion Mail▲450
The first inbox that thinks like you
2025
12
Superflows▲476
AI assistant for email - get to inbox zero faster
2023
13
Delos Mail▲79
Delos AI drafts your replies and organizes your emails
Jan 2026
14
Jotform Gmail Agent▲260
Automatically draft Gmail replies that sound just like you
2025
15
Warmbox▲387
Warm-up your inbox and never land in spam
2021
16
DearFlow▲225
Clear your inbox. Clear your mind.
2025
17
Warmy.io▲417
Boost your email deliverability with an AI driven algorithm
2024
18
Lavender▲233
A complete AI toolkit for amazing 1:1 emails in your inbox.
2020
19
Silent Inbox for Gmail▲251
Receive unimportant emails and newsletters on your schedule
2020
20
EzMail.AI▲115
Reply to emails 10X faster with pre-filled drafts by AI
2023
21
Inbox Autopilot by Dimension▲98
Your inbox, handled
Apr 2026 · dimension.dev
22
NudgeForMe▲286
AI follow-up agent for missed email opportunities
Aug 2026 · nudgeforme.com
23
KleanMail Free Email Verifier▲177
Emails inboxed, always.
2022
24
Supamail AI▲214
Turn Mail Inbox Chaos Into Clarity
Oct 2025

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