airpost

In TestFlight for iPhone

Design your own
Postcards

One postcard for every photograph you pick. Dress an envelope, seal it with wax, send the lot.

Tap the envelope to deal the next card.

Two boats, one lake

Lake Bled · 1 of 6

How it works

A postcard for every photograph,
and one envelope for the lot.

  1. 01

    Pick your photographs

    Up to six. One card each, already laid out.

  2. 02

    Dress the envelope

    Paper, stamps, a sprig, and wax with your initial in it.

  3. 03

    Send it

    Every card and both faces of the envelope, at 300 DPI.

What arrives

They break the seal.
The cards come out.

The flap lifts, the wax comes away with it, and the first postcard rises out of the pocket. Tap a card to turn it over, or the pile to deal the next.

Open the full demo

A postcard: two friends in kayaks on a clear lake, seen from above, in a black stamp frame, titled Two boats, one lake. The back of the same postcard: a handwritten message, a postmark and an address.
A cream envelope with a stamp, a sprig of hawthorn and the words: Open when you land.
A maroon wax seal stamped with the letter R.
Tap to open
1 of 6

Designs

An era, a layout,
and your photograph.

Change one and the card redesigns itself around it.

The same photograph in the Stamp layout, Modern era.

Stamp, Modern

Layout

Era

Eighteen combinations, every one drawn by the app from the same photograph.

The wax

Wax that holds
the flap shut.

The seal straddles the fold. Lift the flap and the wax comes away with it, showing the matte underside and leaving its mark on the pocket.

See every design

The back of a sealed envelope. A maroon wax seal stamped with the letter R.
The seal straddles the tip of the flap.

Five of the eight papers in the cupboard

  • Oyster.Oyster
  • Sage.Sage
  • Blush.Blush
  • Kraft.Kraft
  • Graphite.Graphite

Nothing here is a
picture of a design.

Every stamp, postmark, crease and seal is painted from geometry, so it stays sharp at any size. Every image on this page came out of the app.

Sharp at any size

One painter draws the thumbnail and the 300 DPI export.

Works offline

Nine typefaces and every ornament ship in the app.

Stays on your phone

An account is optional, and only for getting your work back.

Themes

Try it in
another colour.

The app lets you choose an accent, a paper and a moving background. So does this page. Every change below restyles the whole site, and stays while you look around the other pages.

Meadow, white paper, textured. Sky in Sky.

Body font

Untitled Sans Trial cut: not licensed to serve

Klim. The current face; a test cut, 66 glyphs.

One postcard for every photograph you pick. Dress an envelope, seal it with wax, send the lot.

Amelia’s trip, 6 cards. “Open when you land” – posted 14 June 2026 from Lecce, £3.50 & free? Yes!

Regular Medium Bold Eyebrow caps

Start from

Accent

Appearance

Paper, in light mode

Texture

Moving background

Background palette

Motion

Kept in this browser only. Somebody visiting fresh sees the default, in light or dark as their device prefers.

Send something
somebody keeps.