Forma3D · app selection guide
Best 3D modeling apps for iPhone, honestly compared
The iPhone 3D app landscape changed fast in late 2026. Some famous names are iPad-first or phone-viewer-only, while others run a complete workflow in your pocket. This guide covers only what actually models on an iPhone — and says plainly where the limits are.
Guide published November 3, 2026 · By Forma3D · iOS 17 or later · Prices checked November 2026
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The honest picture on iPhone
iPad roundups are misleading here. Shapr3D's iPhone app — launched October 30, 2026 — is a viewer: it opens, inspects, presents in AR, and exports, but you cannot model with it on a regular iPhone. Full Parasolid CAD arrives only on iPhone Duo in November 2026, where the 7.6-inch display and Apple Pencil support make it viable. On a normal iPhone screen, the apps that actually let you create and edit geometry are fewer than the marketing suggests.
So this guide separates two things: apps that model on iPhone (Forma3D, Nomad Sculpt, uMake, Onshape, Tinkercad in a pinch) and apps that view or capture (Shapr3D for iPhone, Scaniverse, Polycam). Both matter — but they are not interchangeable.
Quick picks
| Use case | App | On iPhone | Pricing (Nov 2026) |
| Edit, repair, split, paint meshes for 3D printing | Forma3D | Full app | Free download; IAP for full access |
| Organic sculpting, figures, characters | Nomad Sculpt | Full app | $19.99 one-time |
| Sketch-based 3D design, NURBS surfaces | uMake | Full app (editing needs a plan) | Free viewer; from $12.99/mo |
| Parametric CAD, exact dimensions | Onshape | Full app (dense UI) | Free tier (public docs); paid from $1,500/yr |
| First steps, simple shapes | Tinkercad | Works in Safari (desktop UI) | Free |
| Shapr3D | Shapr3D | Viewer only — full CAD on Duo | Free viewer; subs from ~$250/yr |
| 3D scanning real objects | Scaniverse / Polycam | Capture apps, not modelers | Free (Scaniverse) |
The apps, honestly assessed
Forma3D — best for editing and print prep on iPhone
Our own app, bias disclosed: Forma3D is built for the gap between "I have a model" and "it is ready to print." On iPhone it imports STL, 3MF, OBJ, PLY, DAE, ABC, USD, FBX, GLB, USDZ, and native .blend scenes; edits vertices, edges, and faces with touch gestures; repairs non-manifold geometry; splits oversized models with alignment joints; paints faces for colored 3MF export; and exports STL, 3MF, OBJ, FBX, GLB, or USDZ. The full workflow runs on the phone — not a companion viewer. It is not for parametric dimensioned design (Onshape) or organic sculpting (Nomad). Free download; full access via in-app purchase.
Nomad Sculpt — best sculpting on iPhone
A $19.99 one-time purchase that runs a real sculpting pipeline on the phone: dynamic topology, voxel remeshing, multiresolution layers, vertex painting, PBR rendering. If your goal is a figure, character, or organic form, Nomad on iPhone is the strongest option at any price — desktop ZBrush has no real iPhone equivalent. It is not a print-prep tool: meshes come out for looks, so splitting, joints, and tolerance fitting still happen in a mesh editor downstream.
uMake — real modeling, priced like a service
uMake genuinely models on iPhone: sketch curves, build NURBS surfaces and solids with extrude/revolve/loft, dimension in real units, and place results in AR. The catch is pricing — the free tier is a viewer; drawing, editing, and export need a plan (Basic $12.99/mo or $119.99/yr, Pro $199.99/yr, Studio $399.99/yr as of November 2026). Capable app, but the subscription math is hard to justify unless you live in it.
Shapr3D — a viewer on iPhone, for now
Be precise here: the iPhone app that landed October 30, 2026 is a view-only experience — open synced designs, inspect in visualized/wireframe/X-ray modes, present at full scale in AR, and export STEP/STL/USDZ files. You cannot sketch or model. Shapr3D says full Parasolid modeling is coming to iPhone Duo in November 2026 (its 7.6-inch canvas plus Apple Pencil), with all paid features free at launch until November 15. Early App Store reviews already report version-sync bugs opening designs — this is day-one software. On a regular iPhone today, Shapr3D is an excellent presentation tool, not a modeler.
Onshape — real parametric CAD, cramped but complete
The native iPhone app runs full cloud CAD: sketches, features, assemblies, version history. The free tier is genuinely usable for non-commercial work — with the catch that free documents are public. On a 6-inch screen the dense CAD UI is workable but not enjoyable; fine for checking a dimension or tweaking a feature, rough for an hour of sketching. Needs an internet connection. Paid plans start at $1,500/user/yr — the free tier is the reason to use it on a phone.
Tinkercad — free, works, but not designed for phones
Autodesk's browser modeler loads in iPhone Safari and still does its one job: combine primitives, export STL. The desktop-first UI makes precise dragging clumsy on a small screen, and it cannot edit imported meshes beyond basic transforms. As a zero-cost first taste of 3D it survives on iPhone; for anything past week one, pick a native app.
Scaniverse and Polycam — capture, not modeling
Worth including because scanning is half of mobile 3D. Scaniverse (free, Niantic) turns an iPhone into a serious scanner — LiDAR mesh on Pro models, photogrammetry splats everywhere — and exports OBJ, FBX, STL, PLY, USDZ. Polycam does similar with paid tiers. Neither edits geometry: scans come out messy, so they pair naturally with a mesh editor for cleanup before printing.
What about the iPhone Duo?
The foldable changes the iPhone math. Unfolded at 7.6 inches with Apple Pencil support, Duo is effectively pocket-tablet territory — and developers are treating it that way. Shapr3D's full CAD arrives on Duo in November 2026 while regular iPhones keep the viewer. Forma3D already runs on Duo as an iPhone app, with the larger canvas benefiting split workflows like viewport plus tool panels. If your 3D work is CAD-heavy and pocket-sized, Duo is where iPhone is heading; the app picks above still apply to every other iPhone.
By scenario
| You want to… | Use |
| Fix a Thingiverse download that will not slice | Forma3D — mesh repair on the phone |
| Split or paint a model for your printer | Forma3D — joints, face painting, 3MF export |
| Sculpt a character or figure | Nomad Sculpt |
| Sketch a design idea into a 3D shape | uMake (subscription) or Onshape (free tier) |
| Design a bracket with exact hole spacing | Onshape on iPhone, or wait for real CAD on Duo/iPad |
| Show a CAD design to a client from your pocket | Shapr3D viewer — genuinely good at this |
| Scan an object and print a copy | Scaniverse to capture, Forma3D to clean and prep |
| Try 3D once, free, right now | Tinkercad in Safari |
| Turn a photo into a lithophane | Forma3D — Image 3D height-map mode |
Related guides
Wider comparison including iPad: best 3D apps for iPhone & iPad. Deep dives: mesh editing vs CAD, STL size limits on iPhone, 3D modeling on iPhone Duo, and Forma3D vs Nomad Sculpt.
Frequently asked questions
What is the best 3D modeling app for iPhone?
It depends on the task: Forma3D for editing and preparing STL/3MF models for 3D printing, Nomad Sculpt for organic sculpting, uMake for sketch-based design, and Onshape for parametric CAD. On iPhone, Shapr3D is currently a viewer — full modeling there requires an iPhone Duo.
Is Shapr3D a full CAD app on iPhone?
Not yet on regular iPhones. The Shapr3D iPhone app released October 30, 2026 is view-only: it opens, inspects, presents in AR, and exports designs. Full Parasolid CAD modeling with Apple Pencil is rolling out specifically on iPhone Duo in November 2026.
What is the best free 3D modeling app for iPhone?
Tinkercad runs free in Safari (with desktop-designed controls), Onshape's free tier gives real parametric CAD with public documents, and Scaniverse scans for free. Forma3D is a free download — the full mesh-editing workflow works before any purchase.
Can you edit STL files on iPhone?
Yes. Forma3D edits STL, 3MF, OBJ, GLB, and .blend files directly on iPhone — vertices, edges, faces, booleans, splitting with joints, face painting, and export back to STL/3MF/USDZ. Most other iPhone 3D apps are viewers or design tools that do not edit meshes.
Do I need an iPad for 3D modeling, or is an iPhone enough?
An iPhone is enough for mesh editing, print prep, scanning, and sculpting — Forma3D and Nomad Sculpt are fully functional on the phone. iPad adds screen comfort for long CAD sessions and Apple Pencil sketching. iPhone Duo (7.6-inch unfolded) sits between the two and already runs full Shapr3D CAD.
Tinkercad is a trademark of Autodesk. Nomad Sculpt, Shapr3D, uMake, Onshape, Scaniverse, and Polycam are trademarks of their respective developers. Forma3D is not affiliated with, sponsored by, or endorsed by them. Pricing and feature sets reflect US App Store / vendor listings as of November 2026 and change over time.