Comparison

Superhuman Mail vs Inbox Zero

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Superhuman Mail

This email application streamlines inbox management with AI-powered drafting and summarization. It helps users prioritize important messages, schedule emails for optimal delivery, and collaborate with teams through shared email views and integrated CRM tools. Save time and improve responsiveness with advanced features.

Highlights
  • AI email drafting
  • Automatic email summarization
  • Customizable inbox triage
  • Scheduled email delivery
  • Email sharing and commenting
  • Calendar integration
  • CRM integrations (HubSpot, Salesforce)
Features
Read full description

Superhuman Mail is the most productive email app ever made. Designed to help you fly through your inbox, be more responsive to what matters most, and collaborate faster than ever before, Superhuman Mail helps teams on Gmail and Outlook save 4+ hours per person each week. FLY THROUGH YOUR INBOX 2X FASTER Write better and faster with AI that matches your unique style for each person. Get draft replies on every email that needs a response, ready to edit and send. Turn your thoughts into polished emails in seconds with Write with Voice. Stay a step ahead with an automatic 1-line summary above every conversation. Automate phrases and entire emails with Snippets. BE MORE RESPONSIVE TO WHAT MATTERS MOST Automatically triage incoming email with customizable inbox splits, so you can always focus on what matters most. Avoid the clutter for good with Auto Archive. Never let a follow-up slip, with automatic reminders to reply. Send emails when they're most likely to be opened, so you land at the top of your recipient's inbox at just the right time. COLLABORATE FASTER THAN EVER BEFORE Share a live view of any email, and add comments for your team—no need to repeatedly screenshot, forward, or bcc. See your calendar without leaving your inbox. Get full context on your customers and deals with HubSpot and Salesforce directly integrated. Connect all your Gmail and Outlook accounts to AI tools like Claude and ChatGPT via the Superhuman Mail MCP. Teams save 20 million hours every single year with Superhuman Mail. https://superhuman.com/terms

About

Inbox Zero

Features
Read full description

Inbox Zero is your personal AI-powered email assistant that helps you write, reply, clean, and stay focused. Say goodbye to clutter and chaos. Say hello to clarity and calm. Smart Email Productivity, Reimagined Using advanced AI, Inbox Zero offers smart inbox cleanup, email writing automation, and priority sorting to help you gain control of your day. Clean your inbox in seconds with auto triage & Gmail decluttering tools Generate replies instantly with AI email writing and smart suggestions Unsubscribe from noise, highlight what matters Build better habits with your personal email coach Plan daily sessions with our focused email planner Send cold emails with confidence using AI-powered outreach Stay private — we never store or sell your email content Built-In Tools to Save Your Sanity Whether you're juggling multiple inboxes or just want less digital noise, Inbox Zero is your smart inbox manager: • AI-powered email writer • Email auto-reply and response suggestions • Automated inbox triage & filters • Cold email generator & outreach tool • Daily email routine tracker • Gmail and Outlook integration • Priority inbox scanner • Digest summaries & batching options Perfect For: • Professionals overloaded with daily emails • Entrepreneurs and founders with high-volume inboxes • Students balancing school and communication • Freelancers and consultants who send outreach daily • Anyone who wants their inbox to finally feel under control Why It Works Inbox Zero combines powerful AI with clean design and focused productivity tools. It’s not just an app — it’s your inbox clarity coach, your AI reply engine, and your productivity partner. Clean smarter. Reply faster. Focus better. Please note: The core functionality of the app requires a premium subscription. Without activating the subscription, app features will be limited. Privacy You Can Trust We use secure APIs. Your emails are never stored, sold, or analyzed for advertising. Terms & Privacy Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/inbox-zero-smart-mail

Screenshots

Superhuman Mail4 screens
Inbox Zero4 screens

Verdict

The call

The clearest difference is iOS requirement: Inbox Zero at 15.6 against Superhuman Mail's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Superhuman Mail sells 1 in-app purchase, starting at $29.99 per month and Inbox Zero sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Superhuman Mail versus Inbox Zero: the parameters behind the verdict, then further details
ParameterSuperhuman MailInbox Zero
PriceFreeFree
Rating4.6 (3.7K ratings) — better—
Positive reviews41.1% of reviews—
Number of ratings3.7K — better—
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.015.6 — better
Further details — not scored
Size101 MB108 MB
Age rating12+4+
DeveloperSuperhuman LabsMehmet Turkmen

Bugs and requests

Superhuman Mail

Reported bugs

4 issues
  • Login issues and account activation problems
  • Emails not loading or syncing properly
  • Formatting issues in email threads
  • Crashes and freezes on various devices

Requested features

5 requests
  • Unified inbox for multiple accounts
  • Better calendar integration
  • More customization options
  • Improved mobile app experience
  • Table support in email composition

Inbox Zero

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Superhuman Mail

Subscriptions1
  • Monthly Subscription$29.991 Month
3 purchases

Inbox Zero

Subscriptions3
  • Weekly$6.997 Days
  • Monthly$14.991 Month
  • Annualy$59.991 Year

Questions

Is Superhuman Mail free?
Superhuman Mail is free to download, with in-app purchases available.
Is Inbox Zero free?
Inbox Zero is free to download, with in-app purchases available.
Do Superhuman Mail or Inbox Zero have ads?
Neither Superhuman Mail nor Inbox Zero shows ads.

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