--- title: "SpeakCAD vs Shapr3D: CAD on a tablet with a pencil, or on a phone with a sentence" description: "Shapr3D is the best-known CAD for iPad, built around the Apple Pencil. SpeakCAD runs in any phone browser and replaces drawing with describing. Compare devices, learning curve, output and price." canonical: https://speakcad.com/vs/shapr3d published: 2026-09-03 updated: 2026-10-04 publisher: SpeakCAD --- # SpeakCAD vs Shapr3D: CAD on a tablet with a pencil, or on a phone with a sentence > Shapr3D is the best-known CAD for iPad, built around the Apple Pencil. SpeakCAD runs in any phone browser and replaces drawing with describing. Compare devices, learning curve, output and price. Shapr3D proved that serious CAD can live on a tablet. It is a direct-modelling tool with a professional geometry kernel, designed for an iPad and an Apple Pencil, and it is genuinely good. It is also a full CAD program to learn, it wants a stylus and a large screen, and its paid tiers are priced for professionals. SpeakCAD approaches mobile from the other side: no drawing at all, so a phone screen and a thumb are enough. | | SpeakCAD | Shapr3D | |---|---|---| | Devices | Any phone, tablet or computer with a browser | iPad, Mac, Windows and Vision Pro apps; iPad is the flagship. No web editor: the browser only opens review links in a viewer | | Input | Plain-English chat, photos with a ruler, STL/3MF/.scad uploads | Sketch and push-pull with Apple Pencil or mouse | | Learning curve | Nine hand tools in millimetres, or describe it and say what to change | Real CAD: sketches, constraints, history-free direct modelling | | Install | None: runs in Safari or Chrome | App download; needs a capable iPad | | Precision | Exact millimetres from your description; every dimension is a named parameter | Exact; professional Parasolid kernel | | Output | STL, 3MF, G-code sliced for your printer | STEP, STL, 3MF, OBJ, IGES and more (export limits on the free tier) | | Organic shapes | No: functional parts only | Limited: it is a solid modeller, not a sculptor | | Best for | Functional 3D-printed parts in minutes, from wherever the part is | Designers who draw, need STEP, and work on an iPad | | Test the fit before a long print | Fit Check: free 5-minute test slice of the fit, then your printer's calibration is applied to every model | No: reprint, or cut a test piece yourself | | Price | Maker $7.99/mo (50 credits); Pro $14.99/mo; Unlimited $79.99/mo | Free Basic plan (2 projects, basic-resolution STL and 3MF exports); Pro $299 a year per editor (check their site) | ## Two answers to "CAD on a mobile device" Shapr3D's answer is to make the tablet as good as a workstation: a fast kernel, a pencil for sketching, gestures for push-pull. It works because an iPad is large and precise enough to draw on. The cost is that it is still CAD: you learn sketching, dimensioning and Boolean operations, and you need the tablet and the pencil. SpeakCAD's answer is to remove drawing. The part is described in a sentence with the numbers you measured; the AI writes a parametric program and the browser compiles it into a mesh. The interface that needs is a text box and a viewer, which fit on a phone. There is no pencil because there is no sketch. ## Where Shapr3D wins If you design by drawing, need STEP files for a machinist or an assembly, work on organic-ish surfaces with fillets you place by hand, or want a professional history-free modeller on an iPad, Shapr3D is the better tool and the free tier lets you find out. It also handles large assemblies in a way a text description never will. ## Where SpeakCAD wins If what you need is a bracket, a case, an organizer or a replacement part for a 3D printer, and you would rather not learn CAD or carry a tablet, you describe the part in a sentence on the phone in your pocket. A typical functional part, with a couple of edits and a dimension check, is a downloaded file in about 10 to 15 minutes. Every dimension is a parameter you can change by chat afterwards, fits and printability rules are applied without being asked, and a fix after a test print re-downloads free. It also copies a part from two phone photos and a ruler, which no drawing tool does. ## Using both Shapr3D imports STL and OpenSCAD-derived meshes poorly, as any CAD does, so the two do not share files well. A sensible split is SpeakCAD for the quick functional parts and Shapr3D for the design that needs STEP or careful surfacing. ## Verdict Choose Shapr3D if you draw, own an iPad and Pencil, and need STEP. Choose SpeakCAD if you want a functional 3D-printable part from a phone in minutes without learning CAD, and you would rather describe than draw. ## Sources - [Shapr3D pricing](https://www.shapr3d.com/pricing) - [Shapr3D changelog (web viewer, no web editor)](https://support.shapr3d.com/hc/en-us/articles/7536511116188-Changelog) ## About SpeakCAD SpeakCAD is the most intuitive CAD for 3D printing, made for people who own a 3D printer and need a part that fits something they have: tap a face and type a size to shape it with simple tools, or describe it to the AI, on your phone or computer, and download a print-ready STL, 3MF or G-code sliced for your printer. SpeakCAD works inside ChatGPT and Claude as a plugin (an MCP server): ask the assistant for a part with its measurements and SpeakCAD's own CAD AI designs it, shows it in 3D in the chat and hands over a print-ready STL, 3MF or G-code sliced for your printer. - Live demo, no account: https://speakcad.com/demo - In ChatGPT, Claude and other MCP clients: https://speakcad.com/chatgpt-plugin, https://speakcad.com/claude-connector, https://speakcad.com/mcp-server - Pricing: https://speakcad.com/pricing - FAQ: https://speakcad.com/faq - Site index for AI assistants: https://speakcad.com/llms.txt