SolidMesh vs STL Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SolidMesh
This utility app analyzes, repairs, and optimizes 3D mesh files for reliable 3D printing. It can fix errors, reduce polygon counts, and precisely scale models. Cloud processing is available for larger files via an in-app purchase.
- Mesh analysis (volume, area, counts)
- Mesh repair (non-manifold, broken geometry)
- Polygon count reduction
- Precise model scaling
- 3MF to STL conversion
- Cloud processing for large files
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SolidMesh is a mesh repair and optimization tool designed for reliable 3D printing. Import STL, OBJ, PLY files → analyze geometry → fix mesh errors and reduce polygon count. With a high-performance processing engine, even large and damaged meshes can be repaired and optimized in seconds. Key features: • Mesh Analysis — Volume, surface area, bounding box, vertex and triangle count • Mesh Repair — Fix non-manifold and broken geometry using voxel remeshing or surgical repair • Optimization — Reduce mesh complexity while preserving the original shape • Resize — Precisely scale models before export or printing • 3MF Extractor — Extract and convert embedded 3MF meshes into clean STL files Free usage and in-app purchase: • SolidMesh includes limited free use for files with up to 500,000 triangles • An in-app purchase unlocks cloud processing for large files, powered by Blender’s engine SolidMesh helps you obtain clean, lightweight, print-ready models directly from your device.
STL Viewer
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View STL 3D models and prepare them for 3D printing on your iPhone or iPad. Built for makers, engineers, designers, and 3D printing enthusiasts who need to open, inspect, measure, and export 3D mesh files with precision. KEY FEATURES UNIVERSAL STL SUPPORT • STL (binary and ASCII) • High-poly mesh handling • Fast file opening from Files app, share sheet, or AirDrop • Direct import from Thingiverse, Printables, MakerWorld, and other 3D model sites PRECISION MEASUREMENT TOOLS • Distance measurement between any two points on the mesh • Angle measurement across three vertices • Bounding box with exact X, Y, Z dimensions • Measurement units: mm, cm, inches PROFESSIONAL 3D INSPECTION • Solid and wireframe render modes • Smooth orbit camera with pinch-to-zoom, pan, and rotate gestures • Floor grid overlay for scale reference • Customizable model color • Real-time lit shading with directional and ambient lighting EXPORT & SHARE • Export to OBJ, DAE, and DXF formats • Capture high-resolution screenshots of any view • Share directly to Prusa Slicer, Bambu Studio, Creality Print, and other slicers • Preserve mesh integrity across exports PERFECT FOR • 3D printer owners checking models before slicing • Engineers inspecting CAD exports as STL • Designers reviewing client meshes on the go • Makers browsing Thingiverse, Printables, MakerWorld files • Students learning 3D modeling and printing • Anyone who needs to view STL files without a desktop PRECISION VIEWER • Hardware-accelerated 3D rendering • Infinite pinch-to-zoom for detailed inspection • Smooth gesture controls for any model size • Handles models with hundreds of thousands of triangles PRIVACY FIRST • All processing happens entirely on-device • No internet connection required • Your files never leave your device • Works completely offline — 100% private and secure Download now and inspect your STL files with professional-grade precision. Privacy Policy: https://nagy-legal.vercel.app/stl-viewer/privacy.html
Screenshots
Verdict
The clearest difference is update cadence: STL Viewer at every 8 days against SolidMesh's every 2 weeks. STL Viewer also leads on iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases 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
Both are free to download. SolidMesh sells 1 one-off in-app purchase and STL Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
SolidMesh ships an update every 2 weeks, STL Viewer every 8 days. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.
| Parameter | SolidMesh | STL Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 4 MB | 39 MB |
| Age rating | 4+ | 12+ |
| Developer | Francis Dufour | Mohamed Nagy |
In-app purchases
SolidMesh
- Cloud Engine$2.99
STL Viewer
- Lifetime$12.99









