Made for Mac · Works with Apple Mail

Big inbox.
Small victories.

Turn your inbox into a stack you can finish. Reply, file, snooze, or trash—one email at a time.

Start with 20. Keep going if you feel like it.

See how a stack works →
stackof20 showing a fictional garden invitation, four completed emails, and sixteen remaining in the stack.
A native Mac app · macOS 14 or laterYour existing Apple Mail accountsYour pace. Your batch size.
Less pile. More possibility.

Little steps. A lighter inbox.

01 / PICK YOUR PILE

Start small.

Choose an account already set up in Apple Mail, check your mailbox destinations, and open a stack. Twenty is a starting point, not a rule.

02 / MAKE YOUR MOVE

Give each email a home.

Reply and archive, move to an existing folder, snooze until tomorrow, or send it to Trash. Skip for Now leaves a message undecided.

03 / TAKE THE WIN

Done feels good.

Finish a small batch and come back tomorrow—or start another. A little daily habit can add up to a clear, organized inbox.

A closer look

Small decisions. Real progress.

These are screenshots of stackof20’s actual interface. Every name, email, and attachment shown is made up.

Reply and Archive composer with a fictional reply to Jamie and a Garden planting notes text attachment.

Reply, then file it away.

Write a reply, add an attachment, and choose Send & Archive. The original moves to Archive after the reply is confirmed in Sent.

View full-size screenshot →
Completed stack showing twenty handled emails and the options to come back tomorrow or start the next twenty.

Twenty down. Take the win.

A finished stack is a small achievement, not a claim that your whole inbox is empty. Come back tomorrow or choose the size of your next stack.

View full-size screenshot →
Daily stack settings showing a batch size of twenty, a nine AM snooze time, and the optional confetti checkbox.

Make room for a daily habit.

Choose 1–100 messages for new stacks, set tomorrow’s local wake-up time, and switch the confetti celebration on or off.

View full-size screenshot →
Keyboard settings listing shortcuts for Reply, Refresh, Move, Snooze, Trash, Skip, and Settings.

Keep your hands on the keys.

Use Command-key shortcuts for everyday actions. The Keyboard tab lists them in the app, and the user guide explains how the Move picker works.

View full-size screenshot →

Read the step-by-step user guide →

Know where you are

A stack is a batch, not your whole inbox.

“Completed”

The decisions you’ve finished in this stack, including snoozing for later. It is not the position of the email you’re reading. Skip for Now does not add to it.

“Refresh Remaining Messages”

Updates the unfinished portion with eligible Inbox messages. Your completed count stays the same; snoozed emails remain in their own review.

“Snoozed”

A separate place to revisit emails you deferred. Wake All makes them ready now and opens that review without adding undecided Inbox emails.

Understand the counts and controls →

Your inbox is your business

Your mail. Your Mac. Your pace.

We don’t receive your inbox or reply content. stackof20 has no ads, analytics, or tracking. Reply drafts and attachment copies stay on your Mac; optional iCloud sync carries settings and progress metadata between devices.

Read our privacy policy →

Less in your inbox.
More day ahead.

Twenty emails at a time. A little lighter every day.

Get to know stackof20 →