What day would you have it opened?

daktilo does one thing: it takes the letter you write today and prints it on paper in a way that nobody — not even us — can open before the day you choose. These are the moments people keep coming back to when they pick that day.

Get it on the App Store Google Play · coming soon

Here are nine ideas

Wedding anniversary

An hour before the ceremony, you both write a letter; neither reads the other. On your first anniversary you open them together.

Suggested date: 1st anniversary · then the 5th and 10th

Birthday gift

Write what you think at this age, who you love. Tuck in a concert ticket or a holiday booking — no one can see it before the day.

Suggested date: next birthday · or ten years out

To a newborn

Write the disbelief of the night you first held them, the one that lasted until morning. The person who will read it cannot speak yet.

Suggested date: 18th birthday · or the first day of school

Graduation and class letters

On the last day of class everyone writes a letter, all locked to the same date. At the ten-year reunion, nine envelopes land on the table.

Suggested date: 10-year reunion

A letter to yourself

Write what you decided this year and what you promised to give up. A year from now, the person opening that paper is the only one who gets to judge you.

Suggested date: exactly one year later

New Year's promise

Most promises made on New Year's Eve are forgotten by February. This time put the promise on paper and lock it to next New Year.

Suggested date: next 31 December

Before military service

Write the thing you could not say at the send-off. Let it open on discharge day; reading it then is easier than saying it now.

Suggested date: discharge date

Teacher to student

Leave the sentence a student is not ready to hear today for the day they will be. Hand them the envelope at graduation.

Suggested date: graduation day

Before a long absence

If you are moving to another city or another country, pick the date you will return and leave the letter behind. What goes unsaid at the airport stays there.

Suggested date: the day you return

Why paper

The letter is encrypted on your device. Neither the letter nor a copy of it sits on our servers — because it is never sent.

It cannot be opened before the date you chose. That is not a promise; part of the key is mathematically unsolvable until that date.

No account, no sign-up, no tracking. We do not know who received your letter, because you deliver it: you print it, fold it, hand it over.

If the paper is lost, the letter is gone. There is no recovery — and that is exactly where an envelope gets its weight.

Get it on the App Store Google Play · coming soon