Comparison

Superhuman Mail vs Diepen

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

Diepen

Features
Read full description

Diepen is a focus timer built to help you do deep work — not just track time. Start a session, tag it to a project, and let Diepen count down while you focus. When you're done, review your history on a simple calendar, see your daily and weekly totals, and build a streak. Terms of Use (EULA): https://parniaa.github.io/diepen-legal/terms.html Privacy Policy: https://parniaa.github.io/diepen-legal/privacy.html

Screenshots

Superhuman Mail4 screens
Diepen4 screens

Verdict

The call

The clearest difference is iOS requirement: Diepen at 17.0 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 Diepen sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Superhuman Mail versus Diepen: the parameters behind the verdict, then further details
ParameterSuperhuman MailDiepen
PriceFreeFree
Rating4.6 (3.7K ratings) — better—
Positive reviews40.9% of reviews—
Number of ratings3.7K — better—
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size109 MB25 MB
Age rating12+4+
DeveloperSuperhuman LabsArmin Parnia

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

Diepen

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Superhuman Mail

Subscriptions1
  • Monthly Subscription$29.991 Month
3 purchases

Diepen

Subscriptions2
  • Pro Monthly$6.991 Month
  • Pro Annual$39.991 Year
One-time1
  • Pro Lifetime$79.99

Questions

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

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