3Duo Clock Downloads & Revenue3Duo Clock · App Store

A room inside your screen. Lean over and look in.

3Duo Clock turns your iPhone or iPad into a little room with a clock and character. Its perspective responds to your eye position and device tilt, revealing more of the room as you look from the side.

CHOOSE A COMPLETE LOOK
Six presets combine the model, surfaces, lighting and clock. Try Vivi at Night, Victoria by Day or a tatami room, then adjust each detail.

IN FRONT OF THE FRAME
Move a character or clock forward to let it overlap the black frame. Frame width and character size can be adjusted independently.

ARRANGE TIME, DATES AND NEWS
Nine clock styles: digital, flipping digits, analog, neon, minimal, LED, 3D type, 3D dots and stacked digits. Display dates and monthly or weekly calendars separately, with adjustable position and size. Change the color of 3D type. Calendars show dates; they do not connect to appointment accounts.
Display RSS or Atom headlines as a ribbon, ticker, newspaper or sign. Choose an included source or enter an HTTPS feed URL after checking the publisher’s terms.

BRING YOUR OWN MODEL
Victoria, Vivi and Puka are included. Import your own props or avatars from Files as GLB (glTF 2.0) or VRM 0.x / 1.0. Use a self-contained file up to 50 MB with embedded textures. Files that require Draco, Meshopt or BasisU are not supported. Imported models and images stay on your device; the app has no public sharing feature.

MAKE THE ROOM YOURS
Choose from 24 materials, solid colors or your own images. Show or hide each surface, adjust its extent and lower the floor. Darken or blur distant floors and walls, and set the position and brightness of the lights.
On supported iPhone and iPad models, use the rear camera as a background with adjustable framing and blur. Choose simultaneous face tracking or the rear camera alone. Camera-based light estimates can also adjust the brightness of the 3D scene. This does not change screen brightness.

Start with a stable stand at about 60–75° to the desk and a viewing distance of 50–70 cm. The setup tutorial can be skipped, and the clock works without a camera. Adjust settings while keeping about half the screen as a preview. Supports iPad portrait and landscape, Japanese and English.

Face tracking estimates eye position; it does not identify you or detect where your pupils are looking. This is a single-viewpoint illusion, not a stereoscopic display. The effect depends on your device, placement and adjustments. Camera images and face data are processed on your device and are not used for advertising.

Core features are free. With controls hidden, a banner may appear about every three minutes for up to 30 seconds. A one-time in-app purchase removes ads and supports purchase restoration. No subscription. News requires an internet connection; headlines and usage terms belong to their publishers.