InstantRig vs Mixos Mold

InstantRig is a modular auto-rigging tool for Autodesk 3ds Max, intended for keyframe cartoon animation. It offers auto rigging and skinning, automatic overlapping action, and a pose manager for copying, pasting, and flipping poses. Users can configure fingers and toes and add tails, hair, ears, and breasts to rigs; characters can be resized, and body parts can be stretchy. Animation tools include IK/FK matching and sliding, soft IK, knee and elbow snapping, and customizable controllers. The maker says animations can be baked to deform bones for export to game engines, using formats supported by 3ds Max. InstantRig does not support mocap data. Once a rig is created, it can be used with native 3ds Max versions 2014 or higher without InstantRig installed on that computer. Installation instructions cover dragging the installer into the 3ds Max viewport, manual installation, and quick launch. The free plan is free and provides one license for one user; each additional user needs a separate license.

Mixos Mold is browser-based 3D sculpting software for shaping organic forms with GPU sculpting and pressure-sensitive brushes. Its toolset includes subdivision, dynamic topology, masking, symmetry, stamp alphas, brush presets, and remeshing. Users can import OBJ, FBX, or GLB models, unwrap a sculpt, and send it to Mixos Paint for layered PBR texturing. Mold runs without installation in a WebGPU-capable browser; desktop browsers listed are Chrome, Edge, Firefox, Brave, and Safari 26 or later. It also runs on iPad and Android in compatible browsers, and is included in the free Mixos iOS app for iOS 26 or later. Sculpting and saving to a library are free, but exporting finished meshes as GLB, OBJ, or STL requires a paid plan or perpetual license. Pro costs $8.99/mo, Max costs $17.99/mo, and a perpetual license costs $99 once. Account-saved projects can be opened across devices after sign-in. The maker says editing runs locally in the browser, but provides no equivalent security audit or uptime guarantee.