Comparison

Quick OBJ Viewer vs STL Preview

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

Head to head
About

Quick OBJ Viewer

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Quick OBJ Viewer is a simple and fast app for opening and previewing 3D STL files. Open your files instantly and explore them in a smooth, responsive 3D environment. Rotate, zoom, and inspect models with ease. Switch to wireframe mode to examine mesh details, or customize object and background colors for better visibility. Built with a focus on simplicity and usability, Quick OBJ Viewer keeps the experience clean and distraction-free without unnecessary complexity. No accounts required. Just open and view your files. Whether you're quickly checking a model, reviewing print details, or inspecting geometry on the go, Quick OBJ Viewer provides a lightweight and streamlined OBJ viewing experience. Pro Features - Wireframe - Rotation - Rotation Speed - Background Color Privacy Policy: https://important-anaconda-77e.notion.site/Quick-OBJ-Viewer-Privacy-Policy-36443a8b7595803db8e6d64326d2157d Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

STL Preview

Features
Read full description

STL Preview helps you open and inspect STL files directly on your iPhone or iPad, without needing to return to your computer just to check a 3D model. Whether you are preparing a 3D print, reviewing a design, sharing a model with someone, or quickly checking a part on the go, STL Preview gives you a simple way to see your model clearly in 3D. Open an STL file from Files, downloads, or the share sheet, then rotate, zoom, and examine it with smooth touch controls. Instead of guessing what a file contains from its name or waiting until you are back at your desktop CAD software, you can preview the model immediately. With AR mode, you can place your STL model into the real world using your device camera. This makes it easier to understand size, shape, and proportion before printing, presenting, or continuing your design work. You can also customize the model color and background color to make details easier to see. STL Preview is made for engineers, designers, makers, students, 3D printing users, and anyone who works with STL files and wants a faster, simpler way to inspect them on mobile. Open the file. View the model. Check it before you print, share, or continue.

Screenshots

Quick OBJ Viewer4 screens
STL Preview4 screens

Verdict

The call

The clearest difference is ads: Quick OBJ Viewer at none against STL Preview's shown. STL Preview's advantage is update cadence (every 3 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Quick OBJ Viewer sells 3 in-app purchases, starting at $0.99 per 7 days and STL Preview sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Quick OBJ Viewer ships an update every 3 weeks, STL Preview every 3 days. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

Scorecard2 real differences ยท 4 level
Quick OBJ Viewer versus STL Preview: the parameters behind the verdict, then further details
ParameterQuick OBJ ViewerSTL Preview
PriceFreeFree
Update frequencyEvery 3 weeksEvery 3 days โ€” better
AdsNo โ€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.116.0 โ€” better
Further details โ€” not scored
Size21 MB34 MB
Age rating4+4+
DeveloperKEAT MEN TANGEnes Akkus

In-app purchases

3 purchases

Quick OBJ Viewer

Subscriptions2
  • Pro Plan Weekly$0.997 Days
  • Pro Plan Yearly3 Days trial$17.991 Year
One-time1
  • Quick OBJ Viewer Lifetime$29.99
1 purchases

STL Preview

One-time1
  • Remove Ads$0.49

Questions

Is Quick OBJ Viewer free?
Quick OBJ Viewer is free to download, with in-app purchases available.
Is STL Preview free?
STL Preview is free to download, with in-app purchases available.
Do Quick OBJ Viewer or STL Preview have ads?
STL Preview shows ads; Quick OBJ Viewer does not.
Which is updated more often, Quick OBJ Viewer or STL Preview?
Quick OBJ Viewer ships an update every 3 weeks, and STL Preview every 3 days. Most recently, Quick OBJ Viewer was updated on September 29, 2026 and STL Preview on October 5, 2026.

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