Comparison

Nomad Sculpt vs GemSim

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Nomad Sculpt

Create 3D models with sculpting and painting tools. Features include layers, multiresolution sculpting, and PBR rendering. Supports various export formats for your digital art.

Highlights
  • Sculpting tools (clay, flatten, smooth, trim)
  • Vertex painting (color, roughness, metalness)
  • Layer system for sculpting and painting
  • Multiresolution and voxel remeshing
  • Automatic UV unwrapping
  • PBR rendering with post-processing effects
  • Export/import in glTF, OBJ, STL, PLY
Features
Read full description

• Sculpting tools Clay, flatten, smooth, mask and many other brushes will let you shape your creation. You can also use the trim boolean cutting tool with lasso, rectangle and other shapes, for hardsurface purposes. • Stroke customization Falloff, alphas, tilings, pencil pressure and other stroke parameters can be customized. You can save and load your tools preset as well. • Painting tools Vertex painting with color, roughness and metalness. You can easily manage all your material presets as well. • Layers Record your sculpting and painting operations in separate layers for easier iteration during the creation process. Both the sculpting and painting changes are recorded. • Multiresolution sculpting Go back and forth between multiple resolution of your mesh for a flexible workflow. • Voxel remeshing Remesh quickly your mesh to get a uniform level of detail. It can be used to quickly sketch a rough shape at the beginning of the creation process. • Dynamic topology Refine locally your mesh under your brush to get an automatic level of detail. You can even keep your layers, as they will be automatically updated! • Decimate Reduce the number of polygons by keeping as many details as possible. • Face Group Segment your mesh into subgroups with the face group tool. • Automatic UV unwrap The automatic UV unwrapper can use face groups to control the unwrapping process. • Baking You can transfer vertex data such as color, roughness, metalness and small scaled detail in to textures. You can also do the opposite, transfering textures data into vertex data or layers. • Primitive shape Cylinder, torus, tube, lathe and other primitives can be used to quickly start new shapes from scratch. • PBR rendering Beautiful PBR rendering by default, with lighting and shadows. You can always switch to matcap for a more standard shading for sculpting purposes. • Post processing Screen Space Reflection, Depth of Field, Ambient Occlusion, Tone mapping, etc • Export and Import Supported formats include glTF, OBJ, STL or PLY files. • Interface Easy-to-use interface, designed for mobile experience. Customization is possible as well! • Quad Remesher (separate in-app purchase only) Remesh your object automatically with a quad dominant mesh that follows the mesh curvatures. It supports guides, face groups and density painting.

About

GemSim

Features
Read full description

Design your gemstone before you cut it. GemSim is a free 3D gemstone faceting simulator for designing, visualizing, and refining gemstone cuts before touching a real stone. Whether you're learning faceting, exploring fantasy cuts, planning rough stones, or recreating published designs, GemSim brings powerful design tools to iPhone, iPad, and the web. INTERACTIVE 3D SIMULATION • Rotate, zoom, and inspect gemstones from any angle • See design changes instantly in 3D • Preview realistic gemstone renderings • Analyze light return, windowing, and head shadow NEW: FANTASY CUTTING Go beyond traditional faceting with creative cutting tools. • Create fantasy cuts using ball, cylinder, and V-groove cutters • Combine fantasy cuts with traditional facets • Adjust cutter positions and cutting depths • Visualize and experiment with unique patterns in 3D NEW: ROUGH PLANNING & AUTO-FIT Plan your cuts and make better use of valuable rough material. • Import 3D rough stone scans in STL, OBJ, or GLB format • Visualize rough stones and finished designs together • Move, rotate, and scale designs within the rough • Use Auto-Fit to find placements that fit inside the rough • Compare placements to maximize potential yield FACETING DESIGN EDITOR Create and refine designs with precise controls. • Add, edit, reorder, duplicate, and delete tiers • Control facet angles, depths, and indices • Create and reuse custom index sequences • Select meet points directly from the 3D model • Support fractional indices for advanced designs • Toggle tier visibility and undo changes FROST EDGE Create decorative frosted edges directly in 3D. • Select individual or symmetrical groups of edges • Adjust frost width for precise effects • Frost crown, pavilion, and girdle edges • Generate editable frost tiers automatically • Preview frosted facets in realistic rendering • Include frost details in printable diagrams DESIGN LIBRARY Explore thousands of classic and public gemstone designs. Search by shape, name, designer, or dimensions. Preview, load, and customize designs instantly. CLOUD STORAGE & SHARING Create a free account to save and share designs across devices. • Store up to 100 designs in the cloud • Share through public links or with specific users • Control View Only or View + Copy permissions • Manage access separately for each design An account is optional. Core features work without signing in, and local file storage remains available. IMPORT, EXPORT & PRINT • Save and open editable GemSim project files • Export gemstone designs as 3D models • Generate printable cutting diagrams and instructions • Work with local files without an account BUILT FOR GEM CUTTERS Whether you're a beginner, experienced faceter, hobbyist, student, or gemstone designer, GemSim lets you experiment with angles, proportions, fantasy cuts, frost patterns, and complete designs before cutting real stones. Make mistakes on the screen instead of on the dop. GemSim is free to use, with no subscription required to design, edit, or simulate gemstones. Start designing today and discover what's possible before you make the first cut.

Screenshots

Nomad Sculpt4 screens
GemSim4 screens

Verdict

The call

The clearest difference is price: GemSim at Free against Nomad Sculpt's $19.99. GemSim also leads on in-app purchases (none vs 1). Nomad Sculpt's advantage is chart position (#4 vs unranked) and iOS requirement (16.0 vs 18.7). On update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

GemSim is free to download; Nomad Sculpt costs $19.99 up front. Nomad Sculpt sells 1 one-off in-app purchase. GemSim asks for nothing beyond the download.

UpkeepUpdate frequency

Nomad Sculpt ships an update every 9 days, GemSim every 2 weeks. The most recent releases landed on November 5, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 7 level
Nomad Sculpt versus GemSim: the parameters behind the verdict, then further details
ParameterNomad SculptGemSim
Price$19.99Free — better
Rating4.8 (15K ratings) — better—
Positive reviews87.2% of reviews—
Number of ratings15K — better—
Update frequencyEvery 9 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#4 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.7
Further details — not scored
Size294 MB66 MB
Age rating4+4+
DeveloperHexanomadXuezhong Wang

Bugs and requests

Nomad Sculpt

Reported bugs

3 issues
  • Crashes when importing/exporting certain file types
  • Glitches with symmetry and transform tools
  • Inconsistent performance on older iPad models

Requested features

7 requests
  • Add UV mapping and unwrapping tools
  • Implement a more robust autosave system
  • Include rigging and animation capabilities
  • Add support for more file formats (e.g., FBX)
  • Improve palm rejection and gesture controls
Show 2 more
  • Provide more brush customization options
  • Implement a timeline or layer system for sculpting

GemSim

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Nomad Sculpt

One-time1
  • Quad Remesher$15.99
None

GemSim

No in-app purchases

Questions

Is Nomad Sculpt free?
Nomad Sculpt costs $19.99, and also offers in-app purchases.
Is GemSim free?
GemSim is free to download, with no in-app purchases.
Do Nomad Sculpt or GemSim have ads?
Neither Nomad Sculpt nor GemSim shows ads.
Which is updated more often, Nomad Sculpt or GemSim?
Nomad Sculpt ships an update every 9 days, and GemSim every 2 weeks. Most recently, Nomad Sculpt was updated on November 5, 2026 and GemSim on October 25, 2026.

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