Petra
Keepsake Messaging
or continue with email

Add it if you want friends to find you by phone later.

By continuing, you agree to our Terms and Privacy Policy

Post Box

Your keepsakes, arriving & arrived

Profile
P

Petra User

[email protected]

Member since 2025

Your Signature
+ + + +

Sign on a piece of paper, take a photo. Your ink will be lifted onto every letter and postcard you write.

Settings
Account
Email
About
Privacy Policy
Terms of Service

Petra v1.0 — Messages Worth Keeping

Made with love for people who treasure connections

What's the occasion?

Tap one to begin

Letter
Preview

This is what they'll receive.

Send

Drop it in the mailbox

Drag the sealed letter down — your wax seal goes with it.

Dear …

Drag the letter into the mailbox

MAIL

Off it goes.

Choose where it lands…

Choose your paper

A Spoken Keepsake

Turn your voice into a card

Press to record

Recording...

00:00
Recording your VoiceCard

your voice is now preserved

Timeless

Album

tap to open

Your album
waits for what you'll keep

My People

Upcoming Moments

Dates worth remembering

Su
Mo
Tu
We
Th
Fr
Sa

What kind of moment?

Choose the occasion to remember

Birthday

Tell us more

Who or what is this for?

Repeat yearly

Remember this every year

Prepare

Write in advance?

Prepare now, or we'll nudge you as it nears

A Gentle Reminder

Tomorrow is Amma's Birthday

Would you like to write something now?

Your Handwriting

Write once. Keep it forever.

Your handwriting becomes a personal style

Upload 1–3 pages of your handwriting

Write once.
Keep it forever.

Your handwriting carries rhythm, spacing, and emotion. We can study it and create a personal writing style — so your postcards still feel like you.

Upload your handwriting

Share 1–3 pages for best results

For best results

  • Write naturally on plain, unlined paper
  • Use black or dark blue ink
  • Include full sentences, not just signatures
  • Good lighting, minimal shadows

Page 1

Tap to upload

Page 2

Optional

Page 3

Optional

Accepts JPG, PNG, or PDF

Review your pages

Make sure your handwriting is clear and readable

We'll study your handwriting's spacing, rhythm, and form.
This takes a moment.

Studying letter shapes…

This may take a moment

Your Handwriting

This looks like you.

Your personal writing style is ready

This is an interpretation of your handwriting — not an exact replica.

A postcard from

tap to flip

Private — only you will ever see this.

ARCHIVAL COTTON RAG

What do you want to remember about today?

What do you want to tell your future self?

front
Choose a stamp
Open this capsule in…

Archive Letter

Message to Future Self

Stock

Par Avion

By Air Mail

TO: FUTURE SELF

FROM: PRESENT SELF

0/1000

Deliver this letter in...

Time Capsule

pull the tab to open

Personal
Keepsakes

Tap to open

Personal Keepsakes

Voice Keepsakes

Groupsake

Sarah
You've always been the one who remembers the little things...
J · M
Remember when we stayed up all night talking about...
MIKE
I don't say this enough but you mean the world to...

A Keepsake
for You

from people who love you

This is what they'll open.

A leather-bound collection of messages, photos & voice notes from everyone who loves them.

A collection of letters for

0 of 0 received

For

What is your favourite memory with them?

What would you want them to never forget?

How have they changed your life?

A few sincere lines mean more than many.

0/420

— if you'd like —

Groupsake

Add a melody

A soft track plays in the background — entirely optional.

Groupsake

0 letters gathered for

Tap the seal when you're ready.

Groupsake

for

slide — or tap — to open

Slide to open

Drafts

In progress.