STL Viewer vs Nomad
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STL Viewer
This offline 3D model viewer supports numerous file formats for 3D printing. It allows users to check printability, estimate time and filament, measure models, and view them in AR at real size. Models are processed locally for privacy.
- Supports 8+ model formats and G-code
- Offline functionality, no account needed
- Printability checks and estimations
- Augmented Reality (AR) viewing
- Model conversion to STL
- Local data processing for privacy
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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.
Nomad
Control AI coding agents like Claude Code and Codex from your iPhone. Interact with a real terminal, manage files, and share live sessions with others. Requires your own Mac or Linux host with agents installed.
- Connect to AI coding agents
- Real terminal access
- File management (SFTP)
- Live session sharing
- Remote desktop control (VNC)
- Native chat interface
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Claude Code, Codex, Cursor, OpenCode and more — every coding agent on your own machines, in one iPhone app, with a real terminal, files and desktop when you need to take over. Steer agents mid-task, share a live session with others, and keep all your Macs and Linux servers in one place. You need a computer or server you can reach over SSH; Nomad sets up the agent runtime on it for you. CHAT YOUR WAY • Ask follow-up questions and follow streaming replies in a native chat interface. • Add images, videos, and files to give your agent the context it needs. • Open supported documents and images from replies, with attachment previews and downloads. • Reply to an earlier message to keep the discussion in context. Available models, tools, and capabilities depend on the agent installed and configured on your host. AI CODING AND VIBE CODING Describe your goal in natural language and guide a coding agent on your own host to explore code, implement ideas, investigate issues, and iterate. Follow up from your phone, add screenshots or files, and inspect replies and generated results. Open the terminal or remote files when you need more control. Code execution, tools, and models depend on your host and configured agent; Nomad is not an included cloud development environment running on the iPhone. SHARE WITH FAMILY AND FRIENDS — BROWSER ACCESS TOO • Share a specific conversation, not access to your entire computer. • Invite someone by link or QR code. Access starts after the owner approves their request. • Recipients can use the Nomad app or a web browser. • To authorize a browser, an owner or an approved recipient scans its QR code with Nomad's + → Scan QR Code. The web link alone does not grant access. • Participants follow the same conversation and agent replies, and can send messages when permitted. The owner controls chat permission and history scope, and can stop sharing at any time. • When sharing ends, live access stops while previously downloaded history remains on the recipient's device. Creating and joining host-managed shares does not require a Nomad account. The browser is a recipient-only client; it has no model selector or host administration controls. YOUR WORKSPACE, WHEN YOU NEED IT Use an SSH terminal, browse and transfer files over SFTP, or control a compatible remote desktop over VNC. The corresponding services must be enabled and reachable on your host. BEFORE YOU START Nomad is a client for your own hosts and agents. It does not include a free AI service or a hosted agent. The owner needs a reachable, online Mac or Linux host with the chosen agent installed, configured, and authenticated. Browser sharing also requires a reachable HTTPS address. Your host's agent may send prompts, attachments, and task context to its configured AI provider. Models, subscriptions, API charges, and usage conditions depend on your configuration and the third-party service's terms. Share only content you are authorized to share. Nomad account sign-in is optional and supports features such as settings and Saved Messages sync. SSH credentials are protected by the iOS Keychain. See the privacy policy for how optional sync, feedback, and diagnostics are handled.
Screenshots
Verdict
The clearest difference is rating: Nomad at 5.0 against STL Viewer's 4.0. Nomad also leads on in-app purchases (none vs 1) and ads (none vs shown). STL Viewer's advantage is chart position (#187 vs unranked) and device support (3 vs 1). On price, ratings volume and update cadence 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. Nomad asks for nothing beyond the download.
Nomad holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
STL Viewer ships an update every 5 days, Nomad every 3 days. Both last shipped on November 12, 2026.
| Parameter | STL Viewer | Nomad |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 5 days | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Ad-supported | Free — better |
| Best chart rank | #187 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 29 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Alper Vural | Yong Guo |
Customer experience
STL Viewer
Nomad
In-app purchases
STL Viewer
- Support Extrude (ad-free)$2.99
Nomad
No in-app purchases









