Comparison

STEP Viewer vs instaRAL

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

Head to head
About

STEP Viewer

Features
Read full description

STEP Viewer opens STEP (.step, .stp) CAD files in 3D on your phone. No desktop CAD software needed. Everything is free. There are no in-app purchases. Credits only skip the ad; without credits you can still open every file after watching a short ad. Key features * Open .step and .stp files straight from your file manager - just tap the file * Measure your model: a bounding box with all three side lengths, in mm or m * Six fixed views (front, right, back, left, top, bottom), plus pinch to zoom, pan and rotate * Save the converted model as GLB whenever you need it * Large files show the estimated time and memory before conversion starts, and progress while it runs * If a file cannot be opened, the app tells you why instead of failing silently * Available in 12 languages, following your device settings Supported formats * Input: .stp, .step (STEP AP203, AP214) * Output: .glb (glTF Binary) How to use 1. Tap a .step file in your file manager, or open the app and tap the folder icon 2. Wait for the conversion - large files show progress and an estimate 3. Drag to rotate, pinch to zoom, tap the view button to switch sides License This app uses Open CASCADE Technology (LGPL-2.1). https://www.opencascade.com For questions or bug reports, please contact us by email.

About

instaRAL

Features
Read full description

instaRAL is a fast and accurate RAL color identification app designed for engineers, manufacturers, architects, designers, painters, and DIY enthusiasts. Simply point your camera at a surface and instantly discover the closest RAL Classic color. The app also suggests similar shades, helping you compare colors more easily. Features • Instant RAL color detection using your camera • Accurate RAL Classic color matching • Similar color recommendations • Clean and intuitive interface • Fast and lightweight • Ideal for manufacturing, industrial design, architecture, painting, interior design and quality control Whether you're matching paint, checking manufactured parts, or selecting colors for your next project, instaRAL helps you identify RAL colors quickly and confidently. Lighting conditions, material texture, and camera quality may affect color accuracy.

Screenshots

STEP Viewer4 screens
instaRAL4 screens

Verdict

The call

The clearest difference is iOS requirement: STEP Viewer at 13.0 against instaRAL's 26.0. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 7 level
STEP Viewer versus instaRAL: the parameters behind the verdict, then further details
ParameterSTEP ViewerinstaRAL
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.0
Further details — not scored
Size61 MB7 MB
Age rating4+4+
DeveloperSmart Cube Labs Co., Ltd.Fatih Akbyk

In-app purchases

None

STEP Viewer

No in-app purchases

None

instaRAL

No in-app purchases

Questions

Is STEP Viewer free?
STEP Viewer is free to download, with no in-app purchases.
Is instaRAL free?
instaRAL is free to download, with no in-app purchases.
Do STEP Viewer or instaRAL have ads?
Neither STEP Viewer nor instaRAL shows ads.

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