AI · alternatives · 2026

24 alternatives to Superflows

AI assistant for email - get to inbox zero faster

Superflows is an AI email assistant designed to help users manage their inbox more efficiently. It provides AI-generated summaries of incoming emails, one-click replies written in the user's personal style, and email… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Superflows launched in 2023; newer entries below may have overtaken it.

1
Superinbox▲531
Email vibing in your Gmail / Outlook
Oct 2025 · superinbox.com · its alternatives →
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
Upstream▲976
The inbox designed for humans and agents
Jun 2026 · upstream.do · its alternatives →
4
Zero▲845
Hi HN, I’m Nizar, and I’m building Zero (https://0.email) — an AI-powered email client that manages your inbox for you. Email hasn’t changed in decades, even though the way we work has. The average knowledge worker now spends close to 30% of their week on email, constantly reacting, replying, and sorting through noise. It’s become one of the biggest productivity sinks in modern work. At the same time, AI has transformed how we write, plan, and collaborate — yet our inboxes are still stuck in the past. I built Zero to fix that. Zero automatically prioritizes, organizes, and even…
2025 · 0.email · its alternatives →
5
EmailFlow.AI▲146
B2B lead generation with autonomous AI agents
2024 · emailflow.ai · its alternatives →
6
April▲664
Reach Inbox Zero by speaking with your email & calendar
2025 · apps.apple.com · its alternatives →
7
Superflows▲554
Build an AI product copilot in an afternoon
2023 · superflows.ai · its alternatives →
8
Gmail in the Gemini Era▲371
Ask your inbox anything to get summaries, drafts, & more
Jan 2026 · blog.google · its alternatives →
9
Mailgo▲469
AI-powered cold email platform that boosts deliverability
2025 · mailgo.ai · its alternatives →
10
DearFlow▲225
Clear your inbox. Clear your mind.
2025 · dearflow.ai · its alternatives →
11
compose.ai▲326
Write email at the speed of thought with AI.
2020 · compose.ai · its alternatives →
12
EzMail.AI▲115
Reply to emails 10X faster with pre-filled drafts by AI
2023 · its alternatives →
13
[Sending]flow▲191
All-in-one Webflow email autoresponder
2024 · sendingflow.app · its alternatives →
14
AIMail▲51
Your AI email assistant for faster email communication
2024 · its alternatives →
15
AI Emailyfree tier, from $14.99/mo▲165
Your AI inbox that writes like you + replies on autopilot
Jul 2026 · aiemaily.com · its alternatives →
16
Shortwave AI Assistant▲163
Your AI-powered executive email assistant
2023 · shortwave.com · its alternatives →
17
ReplylessAI▲122
AI Email app that's affordable, Hit Inbox Zero
Mar 2026 · replyless.ai · its alternatives →
18
Superhuman AI for iPhone & iPad▲210
Write emails faster than ever. On the go.
2024 · superhuman.com · its alternatives →
19
TextCraft AI▲181
Smart inbox, smart emails - AI at your service
2023 · chromewebstore.google.com · its alternatives →
20
ZeroInbox.ai▲130
Check it out lets make it better
2024 · zeroinbox.ai · its alternatives →
21
AI Mail Assistant▲63
Generate, translate, summarize & improve emails
2023 · chatgptservices.app · its alternatives →
22
MailMaestro▲152
Write AI-powered emails, summarize threads and attachments
2023 · maestrolabs.com · its alternatives →
23
Email AI by Snov.io▲190
Generate reply boosting emails in seconds
2023 · snov.io · its alternatives →
24
Spark +AI▲181
Your email productivity, supercharged with AI
2023 · sparkmailapp.com · its alternatives →

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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 →