Alcobrakeuser vs STEP Viewer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Alcobrakeuser
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STEP Viewer
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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.
Screenshots
Verdict
The clearest difference is update cadence: STEP Viewer at every 5 days against Alcobrakeuser's every 8 months. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Alcobrakeuser ships an update every 8 months, STEP Viewer every 5 days. The most recent releases landed on September 12, 2026 and September 17, 2026 respectively.
| Parameter | Alcobrakeuser | STEP Viewer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.5 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 64 MB | 61 MB |
| Age rating | 17+ | 4+ |
| Developer | Ramachandra palyam | Smart Cube Labs Co., Ltd. |
In-app purchases
Alcobrakeuser
No in-app purchases
STEP Viewer
No in-app purchases
Questions
Is Alcobrakeuser free?
Is STEP Viewer free?
Do Alcobrakeuser or STEP Viewer have ads?
Which is updated more often, Alcobrakeuser or STEP Viewer?
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