TopMod 3D: Design Software
Topology modeler for 3D print
About
Create intricate 3D surfaces with a topological mesh modeler. Sculpt complex geometry in real time and export your designs as OBJ files for use in any 3D pipeline. Ideal for artists and designers interested in the mathematics of form.
What's New in TopMod 3D
4.4
November 12, 2026
New in 4.4 • Import fixed on iPad: Import Mesh and Load now open the Files browser, and you can drag a model straight onto the app (OBJ, STL, PLY, OFF, GLB, 3MF). • Every export now opens the Save sheet, including STL, GLB, 3MF, PDF and project files. • New tools: Load Lattice with load points, Space Frame, Hex Perforate, Hex Panels, Zonohedron, Stars, Koch, Pillow, Braid, Mould Maker, Vacuum Buck, Lightning, and a Test category with 30 more to try (Pack, String Art, Edge Chain, Tensegrity, Fins, Vase and others). • New selection filters: same sides, same facing, flat area, island, bigger, smaller, random. • Catmull-Clark cleans up doubled faces first. Many other fixes. TopMod stays free.
MoreSubscriptions & In-App Purchases
$0.99
Donation
A one-time donation to keep TopMod free
Developer apps
FAQ
What is TopMod 3D used for?
TopMod 3D is a topological mesh modeler designed for sculpting intricate 3D surfaces directly on your iPhone and iPad. It allows users to build complex manifold geometry and export creations as OBJ files for use in other 3D software.
What devices does TopMod 3D support?
TopMod 3D is optimized for iPad and also supports iPhone. It is available on iOS devices.
Can I export my designs from TopMod 3D?
Yes, you can export your 3D creations from TopMod 3D as OBJ files. This format is widely compatible with most 3D pipelines and software.
What is the age rating for TopMod 3D?
TopMod 3D has an age rating of 4+, making it suitable for a wide range of users interested in 3D design.
How often is TopMod 3D updated?
The latest version of TopMod 3D, 4.3, was released on November 9, 2026. While specific update frequency isn't detailed, this indicates ongoing development.
Does TopMod 3D have ads?
No, TopMod 3D does not contain advertisements. It is a completely ad-free application.
What is the price of TopMod 3D?
TopMod 3D is available for free. There are no costs associated with downloading or using the application.
What kind of geometry can be created with TopMod 3D?
TopMod 3D specializes in sculpting intricate, high-genus 3D surfaces. It enables the creation of handles, holes, and complex manifold geometry.
