Cadaclysm

Cadaclysm opens real CAD files on your phone or tablet: the exact B-rep geometry inside a STEP, IFC, Rhino, IGES, ACIS or OCCT BREP file, read and meshed on the device itself. Nothing is uploaded, no account is needed, and it works with no network at all.

FORMATS
• STEP (.step, .stp) — AP203, AP214, AP242 and the other schemas ship inside the app
• IFC (.ifc) — IFC2x3, IFC4 and IFC4x3, with every element's property sets
• Rhino (.3dm)
• IGES (.iges, .igs)
• ACIS (.sat)
• OCCT BREP (.brep, .brp)
• OpenSCAD (.scad) — evaluated on the device

OPEN A FILE FROM ANYWHERE
Pick a file with the system file picker, tap one in your downloads or a cloud drive, or share it straight from a chat or an email. Cadaclysm registers itself for CAD files, so a model someone sends you is one tap away.

BUILT FOR BIG MODELS
The reader is written in Rust and runs natively on your device. Assemblies with thousands of parts open with a live progress bar, and a memory budget keeps the largest ones on screen at reduced detail instead of running the phone out of memory. Level of detail follows the camera: fine where you look, coarse where you don't.

A TOUCH CAMERA THAT STAYS OUT OF THE WAY
One finger orbits. Two fingers pan and pinch at the same time. Double-tap frames the whole model. Tap an axis on the triad for a front, top or side view in parallel projection, tap it again for the far side. A mouse or trackpad on a tablet zooms with the wheel.

BROWSE THE PARTS
A translucent parts tree slides over the model without hiding it. Expand assemblies, tap a part to select it, frame it, isolate it, or hide whole subtrees with one tap. Search with plain names or with filter expressions (name, type, layer, properties). Every part opens a details panel with its properties — for IFC, the full property sets from the file.

SEE THE GEOMETRY, NOT JUST THE SHADING
Toggle four layers independently: shapes, edges, curves and isocurves. Give each wire kind its own colour or let it follow the part's colour. Pick a background, turn the grid on or off, and switch a Y-up model (a game-engine export) to show the right way up.

TUNE IT FOR YOUR DEVICE
Render scale, anti-aliasing, half-precision geometry and detail-while-moving are all adjustable, so an older phone stays smooth and a flagship tablet shows everything.

SHARE A PICTURE
Export the current view as a high-resolution PNG, up to eight times the screen size, with crisp edges rendered at the export's scale, and share it from the sheet to any app.

KNOW WHAT YOU OPENED
The document panel lists the file, its reader, what it contains, what the scene was built from, the file's own properties and the reader's diagnostics — the same words the desktop tools use, so a problem can be reported precisely.

PRIVATE BY DESIGN
Cadaclysm never sends your files anywhere. There are no accounts, no ads, no analytics and no network permission. The models on your device stay on your device.

Cadaclysm is built on the Cadaclysm geometry library, the same readers, mesher and B-rep kernel that power its desktop, web and game-engine integrations. Questions, models that will not open, ideas: join the Discord from the About screen.

Requires Android 12 or later and a 64-bit device.

Screenshots show sample models from the Karlsruhe Institute of Technology (IAI/KIT) IFC examples, NIST's MBE PMI test cases, and the OpenSCAD examples (CC0).