Indaxy vs STEP Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Indaxy
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"Indaxy is the field tool for any professional who conducts inventories or valuations of industrial assets (machinery, production lines, facilities). With Indaxy you can: Organize your work by factory, production line, and area. Register assets with photos and videos from the camera or gallery. Attach documentation related to your asset. Record voice notes and have them transcribed automatically on the device to fill in the technical sheet more easily. Carry out factory inspections in a highly visual, simple way. Work offline: data is saved locally and synced in the background as soon as a connection is available. Search and look up assets, clients, and factories with advanced search. Indaxy is available in Spanish, English, French, German, Catalan, Basque, Galician, and Portuguese."
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 device support: STEP Viewer at 3 against Indaxy's 1. STEP Viewer also leads on iOS requirement (13.0 vs 16.4). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Indaxy ships an update weekly, STEP Viewer every 5 days. Both last shipped on October 24, 2026.
| Parameter | Indaxy | STEP Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 65 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | CAPITAL APPRAISAL S.L. | Smart Cube Labs Co., Ltd. |
In-app purchases
Indaxy
No in-app purchases
STEP Viewer
No in-app purchases









