HollowGeometry app icon: a glowing lapis pyramid carved with golden hieroglyphs under a full moon

HollowGeometry

A laboratory of stone. Turn, cut open and test sixteen real Egyptian monuments — then draft your own.

Free · No account · Works offline

01 How it works

Four ways to read a monument

Everything in HollowGeometry is a model you can touch. Start with the stone, end with your own sheet.

01
Atlas

Turn it

Pick one of sixteen monuments and orbit, zoom and read it like a museum model.

02
Structure

Cut it open

Switch to the cutaway and follow labelled chambers, passages, shafts and supports.

03
Workshop

Test it

Twelve experiments on slopes, beams, vaults, ramps and loads — with assumptions in view.

04
Blueprints

Draft your own

Compose columns, pylons, pyramids and obelisks, change proportions, keep your sheets.

02 Features

Built like a drawing sheet

Warm papyrus, lapis boards and drafting lettering — a quiet workshop for the curious.

16 real monuments

From the Step Pyramid of Djoser to Abu Simbel, Karnak and the tomb of Seti I.

Cutaway sections

Chambers, shafts and passages labelled in true proportion.

12 experiments

Ramps, levers, beams and vaults as simplified, honest teaching models.

Blueprint studio

Nine kinds of pieces, adjustable proportions, sheets saved as plain text.

Cubits & metres

Switch units any time. A royal cubit is 0.524 m — blueprints are drafted in cubits.

Private by design

No account, no ads, no tracking. It never connects to a server.

03 The atlas

Sixteen monuments, one lab

Step Pyramid of DjoserMeidum PyramidBent PyramidRed PyramidGreat Pyramid of KhufuPyramid of KhafrePyramid of MenkaureMastabat al-Fir'aun
04 Contact

Questions? Send a note.

Found a wrong measurement or have an idea for a monument? Write to info@fruitdrops.click.

Message sent ✓

HollowGeometry app icon

Open the lab.

Free on iPhone and iPad. No account needed.

Download on theApp Store