STLAR: STL 3MF OBJ AR Viewer

1.0.24 (17 Aug 13:17)

RandoTechNerd

0.00

0 reviews

10+
Downloads

Free

Put any 3D model on your desk at true 3D printing size. Measure, then print.

STLAR: STL 3MF OBJ AR Viewer Screenshot 1 of 6

STLAR: STL 3MF OBJ AR Viewer Screenshot 2 of 6

STLAR: STL 3MF OBJ AR Viewer Screenshot 3 of 6

STLAR: STL 3MF OBJ AR Viewer Screenshot 4 of 6

STLAR: STL 3MF OBJ AR Viewer Screenshot 5 of 6

STLAR: STL 3MF OBJ AR Viewer Screenshot 6 of 6

Download from Google Play

About STLAR: STL 3MF OBJ AR Viewer

STLAR: STL 3MF OBJ AR Viewer is a tools app developed by RandoTechNerd.

Download Statistics

STLAR: STL 3MF OBJ AR Viewer has been downloaded 12 times. In the last 30 days, the app was downloaded 22 times. It is ranked #178 in tools.

User Ratings

The app has no ratings yet.

App Information

STLAR: STL 3MF OBJ AR Viewer is FREE to download. The APK download size is 13.83 MB. The latest version available is 1.0.24 (17 Aug 13:17). The last update was on August 17, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play 2 weeks ago.

Description

Stop guessing whether a model will fit. STLAR puts any STL, 3MF, or OBJ into the "REAL" world at its true printed size, through your phone's camera, so you can see the thing before you spend four hours printing it.

Find a model. Open it in STLAR. Tap a surface. It lands at 1:1 — walk around it, crouch down, hold your hand next to it, then decide whether it's worth the filament.

WHAT IT DOES

• Opens STL, 3MF, OBJ, GLB and glTF files, straight from Downloads, Drive, or the share sheet in your slicer
• Shows the exact bounding box in millimetres, volume in cm³, triangle count and part count — the same figures your slicer would quote
• Places the model in AR at true scale, or at 50%, 200%, or anything in between
• Draws a live measurement box around it, updating as you resize
• Locks the model where you drop it, so a stray finger can't nudge it
• Works in portrait and landscape

MATERIALS AND FINISHES

Sixteen materials with real metallic and roughness values: PLA, PETG, ABS/ASA, TPU, Nylon, Resin, PEEK/Ultem and carbon fibre, plus machined aluminium, stainless steel, titanium, brass and copper, and clay, acrylic and wood.

Each carries its own ranked finishes — pick aluminium and you get mill, brushed, polished, bead blast and the anodising colours. There's also a custom colour picker with a hex field, plus transparency, gloss and reflectiveness sliders.

MULTICOLOUR 3MF

STLAR reads colour three ways — the core 3MF specification, Bambu and Orca project settings, and PrusaSlicer volume data — so a two-tone nametag arrives as a two-tone nametag, with its parts still separate.

SHARE WHAT YOU SEE

Capture the AR view with its measurements and send it to a customer, a client, or your group chat.

EVERYTHING RUNS ON YOUR PHONE

No upload. No account. No server. The whole conversion happens on the device, which means STLAR works in a workshop with no signal, on a plane, or somewhere your files are never allowed to leave the building.

REQUIREMENTS

AR needs an ARCore-supported device and Google Play Services for AR. If your device doesn't support AR, the 3D viewer, measurements and materials all still work.

A NOTE ON ACCURACY

Measurements come from your file's own geometry and are accurate to it. AR placement depends on your device's tracking, so treat the on-screen box as a design aid rather than a certified instrument — don't machine to them without checking.

Built by RandoTechNerd.
Questions, bugs and feature requests: hello@randotechnerd.com

Recent changes:
Fixed

• Full screen had no way back out on some phones: the exit button sat underneath the status bar and could not be tapped. It works now, and the back gesture also leaves full screen.
• On phones and foldables with a camera cutout, controls could sit underneath it in landscape.

Show more Show less

More data about STLAR: STL 3MF OBJ AR Viewer

Price	Free to download
Total downloads	12
Recent downloads	22
Rating	No ratings
Ranking	Medium ranked
Version	1.0.24 (17 Aug 13:17)
APK size	13.8 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

App Performance Report

Get a detailed PDF report for STLAR: STL 3MF OBJ AR Viewer with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Alternative downloads for the STLAR: STL 3MF OBJ AR Viewer app

STLAR: STL 3MF OBJ AR Viewer compared with similar apps

Common keywords of similar apps

Stlar True Box Works Materials Measurements Screen Camera Share Volume Count Landscape Finishes Aluminium Colour Tone Nametag Full Back Phones Underneath Ar Model Stl Obj Device Viewer Printing Size Real Files Slicer

Keywords missing from this app

Models App Print Free Printer Ai Scanner Export Photo Time Support Code Magiscan View Design File Glb Mobile Experience Open Thingiverse Scanning Features Recent Search Scan Generate Text Gltf Custom Tools Printables Thinger Object Built Gcode Ply Minecraft Quality

Changelog of STLAR: STL 3MF OBJ AR Viewer

Show changelog

Developer information for RandoTechNerd

RandoTechNerd

hello@randotechnerd.com

Website

Legal name:

Address:

Phone number:

Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.

I'm the developer of this app

Comments on STLAR: STL 3MF OBJ AR Viewer for Android

We don't have enough comments to show example comments. Please check back later.

Google Play Rankings for STLAR: STL 3MF OBJ AR Viewer

Top rankings

Rank	Country	Category	List
178	United States	Tools	Top New Free

Show all market rankings

Ranking history in United States

Ranking history

Subscribe to see full ranking history in this country

AppBrain offers valuable information about your app and those of your competitors. Join AppBrain for free and claim this app to view more ranking data, view history etc.