Forma3D vs Meld

Forma3D is a professional 3D mesh editor for iPhone and iPad — built for makers, 3D printing enthusiasts, and anyone who needs to create, fix, or modify 3D models on the go. No laptop. No cloud. Everything runs locally on your device, offline, with desktop-grade mesh editing. ▸ PAINT & MULTI-FILAMENT 3MF EXPORT Paint with a brush directly on your model, then export a 3MF file with per-face color data ready for multi-filament printing. Bambu Studio and Creality Print read the embedded colors automatically — your paint job travels to the slicer intact. ▸ SCULPT MODE Sculpt meshes with a gesture-based brush — push, pull, and smooth with falloff presets and Apple Pencil support. ▸ SKETCH MODE Draw a shape or import an SVG and turn it into 3D geometry in one tap. ▸ LITHOPHANE GENERATOR Turn any photo into a printable lithophane — a depth-mapped relief that comes alive when backlit. ▸ SPLIT WITH JOINTS Split meshes along edge loops into printable parts with built-in joints — cylinder, square peg, cone, or ball. Perfect for models bigger than your build plate. ▸ EDGE LOOP TOOLS Select entire edge loops and fill them with clean topology: Grid Fill for quad surfaces, Bridge for connecting boundaries. ▸ MESH EDITING AT YOUR FINGERTIPS Switch between Object Mode and Edit Mode. Select and edit vertices, edges, and faces with Single, Rectangle, Oval, or Brush selection. Move, rotate, and scale with a transform gizmo or numeric input. ▸ PROFESSIONAL MODELING TOOLS • Extrude — live preview with direction toggle • Inset — adjustable depth • Bevel — custom segments and profile control • Boolean — Union and Subtract (Manifold CSG) • Cut — Line, Circle, Ellipse, Rectangle, Polygon, Freehand • Mirror — across X, Y, or Z • Revolve — lathe geometry from a profile • Subdivide / Simplify — resolution where you need it • Remesh — uniform quad topology with quality control • 3D Text — extruded text objects ▸ PRIMITIVES & FILE FORMATS Cube, Sphere, Soft variants, Cylinder, Torus, Pyramid, Plane, Tube, Bolt, Nut. Import STL, 3MF, OBJ, PLY, DAE, ABC, USD, FBX and GLB — plus native Blender .blend scenes with mirror modifiers and object transforms applied. Export to STL, 3MF (Bambu-ready), OBJ, FBX, GLB or USDZ — with colors. ▸ 3D SCANNING (LiDAR) Scan real objects and edit the mesh immediately — scan, fix, print without switching apps. ▸ PRECISION & MEASUREMENT Ruler in millimeters, 20 mm build-plate grid, snap-to-grid, keyboard numeric input. ▸ VISUALIZATION Orthographic view cube, X-Ray mode, wireframe (triangles/quads), custom lighting and viewport colors. ▸ UNDO / REDO & PROJECTS Full history, native .forma3d projects, objects list panel. ▸ APPLE PENCIL Hover tooltips and precise component editing optimized for Pencil. ▸ 21 LANGUAGES English, Deutsch, Français, 日本語, 简体中文, 繁體中文, Español, Italiano, 한국어, Português, Русский, Українська, Nederlands, Polski, Türkçe, Svenska, العربية, हिन्दी, ไทย, Tiếng Việt, Bahasa Indonesia.

Meld is a polygon modeler and texture painter built for iPad and iPhone. Topology editing tools, rebuilt for use with touch and Apple Pencil. MODELING Extrude, Inset, Bevel, Loop Cut, Knife, Edge Slide and Subdivide. Extrude along the region, the normals or each face individually. Bevel edges or vertices with adjustable segments and profile shape. Cut loops with even spacing and slide them into place. Every tool opens a settings panel after you commit, so you can dial in an exact amount, add a segment, or change a profile without undoing and starting again. Move, rotate and scale with gizmos in global or local orientation, or transform freely with an axis constraint when you need one direction only. TOPOLOGY Split, separate, dissolve and delete across every selection mode. Fill and bridge edges. Merge vertices by distance or at their center. Flip normals, shade smooth or flat, join objects together. Full undo and redo on everything. PAINTING Paint color directly onto your model with Apple Pencil, using pen pressure. Roughness, metallic and emissive channels let a surface read as worn metal, wet plastic or a glowing sign. Unwrap UVs with smart unwrap. LIGHTING AND RENDERING Point, spot, directional and area lights. Place cameras, frame a shot at the aspect ratio you want, and capture it. Ray traced shadows and reflections on supported devices. Import reference images to model against. Fly through your scene or orbit it, in perspective or orthographic, with instant front, side and top views. FILES Import and export OBJ, glTF, GLB and USDZ. Export a single object or the whole scene. Exporting models requires Meld Pro. Scenes autosave as you work, and the file browser shows a real 3D preview of every one. Your files stay on your device, and export to formats every other tool already speaks. Terms of Service: https://meld3d.app/terms.html Privacy Policy: https://meld3d.app/privacy.html NINE LANGUAGES English, Spanish, French, German, Portuguese, Russian, Japanese, Korean and Chinese.