ZeronessThe best Superhuman alternatives in 2026.
The short answer: for Gmail users, Zeroness gives you Superhuman's keyboard-first speed and AI drafts for $9.99 a month. If you need Outlook or Android, look at Spark or Missive. If you want to stay in Gmail itself, Gemini covers the basics for free.
| App | Price | Works with | Platforms | Best for |
|---|---|---|---|---|
| Zeroness | $9.99 a month, AI drafts included. Free for work email during launch; first 100 users free until Jan 31, 2027. | Gmail, Google Workspace | Web, iPhone | Gmail users who want Superhuman's speed and AI drafts at a third of the price. |
| Shortwave | Pro $18 a month (billed monthly). Business $30, Premier $45, Max $120 per seat. Limited free plan. | Gmail, Google Workspace | Web, Mac, Windows, iPhone, Android | Gmail power users who want AI search and AI filters, and can pay for higher tiers. |
| Spark | Free plan. Plus $10 a month ($8.25 annual). Auto-drafts need Pro, $20 a month ($16.58 annual). | Gmail, Outlook, iCloud, Yahoo, IMAP | Mac, Windows, iPhone, Android | People with many non-Gmail accounts who want a polished free client. |
| Inbox Zero | App free; AI from $20 a month ($18 annual). | Gmail, Outlook | Web, desktop, iPhone | People who want open source and self-hosting. |
| Fyxer AI | Free plan with 400 credits. Pro $49 a month ($37 annual). | Gmail, Outlook | Works inside Gmail and Outlook | People who want to keep Gmail or Outlook and add an assistant on top. |
| Missive | From $18 a month ($14 annual). 30-day trial. | Gmail, Outlook, IMAP | Web, Mac, Windows, iPhone, Android | Teams that share inboxes and need comments and assignment. |
| Gmail with Gemini | Summaries and prompt-based drafting free; AI inbox triage needs a paid Google AI plan (AI Plus $9.99 a month). | Gmail | Web, iPhone, Android | People who don't want another app. |
| Superhuman Mail (for reference) | Starter $30 a month ($25 annual). Auto Drafts and Ask AI need Business, $40 a month ($33 annual). | Gmail, Outlook | Web, Mac, Windows, iPhone, Android | Teams that need Outlook, Android or desktop apps and can pay $300-480 a year per person. |
Why people leave Superhuman
Price, mostly. Superhuman Mail is $25 a month per person billed annually, and the AI that writes replies for you (Auto Drafts) and answers questions about your mail (Ask AI) is only on Business, $33 a month annually or $40 monthly. Since the Grammarly acquisition, the Superhuman suite only includes Mail from Business up. For a three-person startup that is $1,188 to $1,440 a year for email.
Zeroness
An email app for Gmail and Google Workspace on web and iPhone. AI sorts every thread into Important, Team, Calendar, News and Other, drafts replies in your voice after checking your other mail for decisions already made, and every action has one key. Every feature is on every plan. Not yet: Outlook, Android, Mac and Windows apps, shared team inboxes. Zeroness vs Superhuman in detail.
Shortwave
The closest Gmail-only alternative, built around an AI agent you prompt to search, organize and write. Strong AI search across years of mail. Paid plans are billed monthly and the higher tiers are priced per seat. Fully automatic drafting runs through its sister product, Tasklet.
Spark
A long-standing cross-platform client with a capable free plan and support for almost any provider, including IMAP. AI auto-drafts and Autopilot are on Pro. We did not find a browser version.
Inbox Zero
Open source and self-hostable, with a free email app on web, desktop and iPhone and paid AI plans for categorizing, drafting and a cold-email blocker.
Fyxer AI
An assistant that works inside Gmail and Outlook rather than replacing them: drafts in your tone, labels and meeting notes, metered in credits. Sorting starts on Pro.
Missive
Built for teams: shared inboxes, comments and assignment across Gmail, Outlook and IMAP, with AI on every plan through credits or your own API key.
Gmail with Gemini
Gmail now summarizes threads and drafts from a prompt for free. AI inbox triage needs a paid Google AI plan and is a US, English-only beta. No tier writes drafts before you ask.
How we compared
Prices are per user per month in US dollars from each vendor's pricing page on November 5, 2026, with annual-billing prices in brackets. "AI drafts" means replies written before you ask, not writing help you prompt. We will update this page when prices change; email sai@appliedcrew.com if something is out of date.
Questions
What is the cheapest Superhuman alternative?
For a full email app with AI drafts, Zeroness is $9.99 a month with AI on every plan (free for work email during launch). Spark has a free plan but puts auto-drafts on Pro at $20 a month. Gmail itself has free summaries and prompt-based drafting through Gemini.
Which Superhuman alternative works only with Gmail?
Zeroness and Shortwave both focus on Gmail and Google Workspace. Spark, Missive, Fyxer and Inbox Zero also support Outlook.
Does Superhuman's cheapest plan include AI drafts?
No. As of November 2026 Superhuman's Starter plan ($25 a month billed annually, $30 monthly) does not include Auto Drafts or Ask AI; both are on Business ($33 annual, $40 monthly).
What replaced Notion Mail?
Notion Mail shut down on September 22, 2026 and Notion did not launch a replacement inbox. Former users moved to Gmail apps such as Zeroness, Shortwave and Spark.