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RetroDeck 1.1  ·  iPhone Duo  ·  iOS 17+

RetroDeck for iPhone DuoThe wheel gets its own side.

Open iPhone Duo and RetroDeck splits at the hinge: the screen on one side of the fold, the click wheel on the other. Fold it like a book, stand it up like a laptop or close it, and the player rearranges to fit. Version 1.1 is on the App Store now.

  • Open · side by side
  • Laptop · stacked
  • Closed · classic
RetroDeck on iPhone Duo open display showing the main menu on a 4:3 screen on the left half and the white click wheel on the right half, split at the hinge.
Fig. 01 · Open, held sideways. Screen on one leaf, wheel on the other.
3Layouts · one app
0Controls on the fold
L / RWheel Side setting
$2.99Same app · one time

01 · The inner display

Built in two halves.
Like it was always meant to be.

On a regular iPhone the screen sits above the wheel. Give it the Duo's inner display and each one gets a half of its own.

RetroDeck on iPhone Duo open display showing Cover Flow on the left half, a pink album cover in 3D with its reflection, and the click wheel on the right half.

Fig. 02 · Open flat. Cover Flow on one side, the wheel on the other.

Open · side by side

Screen on one leaf. Wheel on the other.

Unfold the Duo and turn it sideways, and RetroDeck splits the player at the hinge. The 4:3 screen sits centred on one half of the inner display, the click wheel centred on the other, and the fold runs through the gap between them. The body stays one continuous slab in whichever skin you picked.

  • More room for the screen and the wheel than a regular iPhone has
  • The fold lands in the gap, never on a control
  • Menus, Now Playing, Cover Flow and Extras work exactly as before
RetroDeck on iPhone Duo in the book pose showing Cover Flow on the left page and the click wheel on the right page, split at the fold.

Fig. 03 · Book pose. Each half gets a page.

Book · split at the fold

Fold it like a book.

Half-close the Duo and hold it like a paperback. RetroDeck keeps the side-by-side layout and sizes each half to its own page, so the screen faces one hand and the wheel faces the other with the hinge between them.

  • Screen and wheel end at the fold on each side
  • Moves into place as you fold, with the song still playing
RetroDeck on iPhone Duo in the laptop pose showing Now Playing on the upper half and the click wheel on the lower half, with the fold between them.

Fig. 04 · Laptop pose. Screen up, wheel down.

Laptop · stacked

Or stand it up like a laptop.

Set the Duo on a table with the top half raised and RetroDeck stacks the player across the hinge: the screen on the upper half, where you look, and the wheel on the lower half, where your thumb rests.

  • Good for Now Playing on a desk or a nightstand
  • The wheel sits clear of the fold, flat on the lower half
RetroDeck on iPhone Duo open display in the black skin with Wheel Side set to Left: the dark click wheel on the left half and the main menu screen on the right half.

Fig. 05 · Wheel Side: Left, in the Black skin.

Wheel Side

Wheel on the left, if that's your hand.

A new Wheel Side setting, Right or Left, swaps the two halves when the Duo is open. It only shows up in Settings while the side-by-side layout is on screen, so nobody on a regular iPhone ever sees it.

  • Right by default, Left for left-handed listening
  • Works in every skin

02 · Closed and upright

Closed? Still the classic.

On the outer display, and on the open Duo held upright, RetroDeck is the portrait player you know: screen on top, wheel below.

RetroDeck on iPhone Duo closed outer display showing the classic portrait layout: the main menu screen on top and the click wheel below.
Fig. 06 · Closed. The outer display, main menu.
RetroDeck on iPhone Duo closed outer display showing Now Playing with album art, the 1 of 5 track counter and the scrubber, above the click wheel.
Fig. 07 · Closed. Now Playing, pocket size.
RetroDeck on iPhone Duo open display held upright showing the classic layout at full size, a large main menu screen above a large click wheel.
Fig. 08 · Open, held upright. The classic, full size.

The outer display keeps a column at one edge for its camera. RetroDeck centres the player beside it, so the camera never sits over the screen.

03 · How it works

The layout follows the fold.

RetroDeck doesn't check which phone it's on. It looks at the shape of its window and where the fold is, then picks one of three arrangements: classic, side by side or stacked.

So when you open, fold, close or turn the Duo, only the chrome moves. The screen and wheel slide into their new places, and everything on the screen stays where it was: the menu you were in, the song that was playing, your skin and EQ.

The screen inside is the same 4:3 player with the same features, from Cover Flow to the 10-band EQ. And the click wheel works the same on either half.

Closed
Classic portrait player on the outer display, clear of the camera
Open, sideways
Side by side: screen on one half, wheel on the other
Open, upright
Classic, at full inner-display size
Book pose
Side by side, split at the hinge
Laptop pose
Stacked: screen on the upper half, wheel on the lower
Wheel Side
Right or Left, shown only in the side-by-side layout
Other iPhones
Unchanged: the classic portrait layout, edge to edge
Version
RetroDeck 1.1, iOS 17 or later, $2.99 one time

04 · Questions

RetroDeck on iPhone Duo, answered.

Yes. RetroDeck 1.1 is built for iPhone Duo. On the inner display the screen and the click wheel each get their own side of the fold, and on the closed outer display it is the classic portrait player. It is the same $2.99 app, so if you already own RetroDeck the Duo layout comes as a free update.

Held sideways, the player splits at the hinge: the 4:3 screen sits on one half of the inner display and the click wheel on the other, with the fold running through the gap between them. Held upright, you get the classic layout at full size. The switch happens live, and your music keeps playing.

Yes. On the outer display RetroDeck looks and works the way it does on any other iPhone: screen on top, wheel below. The layout also leaves room for the outer display's camera, so the camera never sits over the screen.

Half-fold it like a book and the screen and wheel sit on facing pages, split at the hinge. Stand it up like a laptop and RetroDeck stacks them: screen on the upper half, wheel on the lower half. Neither one ever sits on the fold.

Yes. Settings has a Wheel Side option, Right or Left, that swaps the two halves when the Duo is open. The row only appears while the side-by-side layout is on screen, and the default is Right.

No. On every other iPhone RetroDeck is the same portrait player it has always been, and the Wheel Side setting does not appear. RetroDeck needs iOS 17 or later.

Get RetroDeck · $2.99

Unfold your music.

One app for iPhone and iPhone Duo. Pay once, no subscription, no ads.

iPhone  ·  iPhone Duo  ·  iOS 17 or later