Space UWB vs STL Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Space UWB
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이 앱은 Space UWB 제품을 사용하는 고객을 위한 전용 앱입니다. 앱을 실행하면 UWB(Ultra-Wideband) 기능을 통해 연결된 장치와의 실시간 거리 데이터를 확인할 수 있습니다. BLE(Bluetooth Low Energy)를 통해 UWB 장치와 안정적으로 연결됩니다. 주요 기능 - Space UWB 장치 자동 검색 및 연결 - 실시간 거리, 방향 각도 정보 표시 이 앱은 Space UWB 제품과 연동되는 기능만 제공하며, 단독으로는 사용하실 수 없습니다.
STL Viewer
This app allows users to view, check, measure, and convert 3D models offline on their iPhone or iPad. It supports various file formats and provides printability estimates and AR previews. Models are processed locally for privacy.
- Supports 8+ 3D model formats
- Offline viewing and processing
- Printability checks
- AR real-size previews
- Measure and estimate print details
- Convert models to STL
- Open files from links
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STL Viewer is a free, offline 3D model viewer for 3D printing on iPhone and iPad. It opens STL, 3MF, OBJ, PLY, OFF, 3DS, GLB and glTF files and G-code, checks whether a model will print, estimates time and filament, measures it, shows it in AR at real size and converts it to STL. Your models never leave your device and no account is needed. AT A GLANCE • 8 model formats plus G-code and sliced 3MF • Works offline, with no upload and no sign-up • Free: no subscription and no in-app purchase • No pop-up, timed or full-screen ads; at most one small banner • 27 languages, on iPhone and iPad WILL IT PRINT? One tap checks the model before you slice it: • Closed mesh, no holes • Fits your printer's bed, or fits once rotated • Overhangs that need supports • Enough contact with the bed • Walls too thin to print • Loose, floating parts Share the result as an image. SLICED FILES Open G-code and sliced 3MF files from PrusaSlicer, Bambu Studio, OrcaSlicer or Cura to see print time, filament and layer count, with the slicer's preview image. ZIP archives open too. MEASURE AND ESTIMATE THE PRINT • Measure the distance between any two points, in millimetres • See dimensions, volume, surface area and triangle count • Print estimate: weight, filament length, time and cost for your printer, material (PLA, PETG, ABS, ASA, TPU, Nylon), layer height, infill and walls, worked out layer by layer • Cut through the model with a section view VIEW IN AR AT REAL SIZE Place your model on a real desk or floor with AR Quick Look and see its true size before you print it. The camera is used only while AR is open. CONVERT AND EXPORT TO STL Turn an OBJ, 3MF, PLY, OFF, 3DS, GLB or glTF model into a binary STL in millimetres, ready for any slicer. Every triangle of the source is kept. OPEN FROM A LINK Paste a link to a Printables model page or to a file: it downloads straight from that site to your device. INSPECT AND SHARE • Orbit, pan, zoom; shaded or wireframe; perspective or orthographic • Six views from the view cube • Colour and surface: plastic, glossy, wood, stone or carbon • Share a 360° GIF, a 9:16 story video or an STL copy LOCAL AND PRIVATE Models are processed on your device. STL Viewer does not send model files, filenames, paths, geometry or dimensions to any cloud service, advertising provider or analytics platform. WHAT IT DOES NOT DO STL Viewer views, checks, measures, shares and converts. It does not edit, repair or slice models. Textures and animations are not loaded. Native CAD formats (STEP, IGES) need to be exported to STL, OBJ or 3MF first. QUESTIONS AND ANSWERS How do I open an STL file on iPhone? Tap Open file in STL Viewer, or choose STL Viewer from Open With or Share in the Files app. Will my model print? Open it and tap Print check: holes, bed fit, supports, base, thin walls and loose parts in one list. Can I open G-code on iPhone? Yes. G-code and sliced 3MF show print time, filament and layers from the slicer. Is it free and offline? Yes. No subscription, no in-app purchase, and everything runs on the device. Can I see an STL in AR at real size? Yes. Tap AR to place the model in your room. How do I convert OBJ, 3MF or GLB to STL? Open the model, tap Export, then Share as STL. Are my files uploaded anywhere? No. Models stay on your device.
Screenshots
Verdict
The clearest difference is in-app purchases: Space UWB at none against STL Viewer's 1. Space UWB also leads on ads (none vs shown). STL Viewer's advantage is update cadence (fortnightly vs every 2 months) and device support (3 vs 1). On price and iOS requirement 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. STL Viewer sells 1 one-off in-app purchase. Space UWB asks for nothing beyond the download.
Space UWB ships an update every 2 months, STL Viewer fortnightly. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.
| Parameter | Space UWB | STL Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Ad-supported |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | inc.freegrow | Alper Vural |
In-app purchases
Space UWB
No in-app purchases
STL Viewer
- Support Extrude (ad-free)$2.99
Questions
Is Space UWB free?
Is STL Viewer free?
Do Space UWB or STL Viewer have ads?
Which is updated more often, Space UWB or STL Viewer?
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