Comparison

LayerLab vs STL Viewer

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

Head to head
About

LayerLab

Features
Read full description

LayerLab is a professional G-Code analyzer that examines your 3D print files in seconds. SMART ANALYSIS • Upload your G-Code file and LayerLab instantly detects errors, risks and optimization opportunities • Overhang analysis, bridge detection, temperature warnings and more • Ghosting risk, acceleration check, Z-Hop status automatically reported REALISTIC 3D PREVIEW • Inspect your model on a Prusa-style bed with your own logo in 3D • Real-size Augmented Reality (AR) preview on your table • Layer-by-layer viewing PRINTER CONTROL (OctoPrint/Klipper) • Manage your printer from your phone via OctoPrint and Klipper connection • Camera monitoring, temperature control, emergency stop • Live print tracking via Dynamic Island and Lock Screen PRINT FARM MANAGEMENT • Manage multiple printers from a single screen • Command center for batch control PROFESSIONAL QUOTES • Cost calculation, profit margin and labor addition • Generate branded PDF price quotes in seconds FILAMENT INVENTORY TRACKING • Spool inventory management • Print history and automatic stock deduction Download free and take your 3D prints to the next level! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://dogukaneeser-tech.github.io/layerlab.github.io/privacy.html

About

STL Viewer

Features
Read full description

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

LayerLab4 screens
STL Viewer4 screens

Verdict

The call

The clearest difference is ads: STL Viewer at none against LayerLab's shown. STL Viewer also leads on iOS requirement (15.1 vs 18.0). On price, in-app purchases and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. LayerLab sells 1 in-app purchase, starting at $2.99 per year and STL Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences Ā· 4 level
LayerLab versus STL Viewer: the parameters behind the verdict, then further details
ParameterLayerLabSTL Viewer
PriceFreeFree
Update frequency—Monthly
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size14 MB38 MB
Age rating4+12+
DeveloperDogukan EserMohamed Nagy

In-app purchases

1 purchases

LayerLab

Subscriptions1
  • LayerLab Pro7 Days trial$2.991 Year
1 purchases

STL Viewer

One-time1
  • Lifetime$1.99

Questions

Is LayerLab free?
LayerLab is free to download, with in-app purchases available.
Is STL Viewer free?
STL Viewer is free to download, with in-app purchases available.
Do LayerLab or STL Viewer have ads?
LayerLab shows ads; STL Viewer does not.

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