STEP Viewer vs PDF Craft

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.

PDF Craft is a one-time purchase PDF toolkit that handles all your PDF needs entirely on your iPhone - no subscriptions, no cloud uploads, no privacy risks. CORE TOOLS - Merge PDF: combine multiple PDFs into one, drag to reorder pages - Split PDF: by page range or tap to select specific pages - Compress PDF: 3 quality levels with real-time estimated size preview - Document Scan: camera scanning with automatic edge detection and perspective correction - OCR Recognition: extract text from PDFs and images in English, Chinese and Japanese PAGE EDITING - Rotate and Reorder: thumbnail grid view, multi-select, drag to sort - Add Watermark: baked-in text watermark with 7 positions and live first-page preview - Encrypt PDF: password protect or remove protection with strength indicator FORMAT CONVERSION - Image to PDF: import photos from your library, choose A4, Letter, or original size - PDF to Image: export pages as high-resolution PNG or JPEG (up to 300 PPI) WHY PDF CRAFT? - One-time purchase: pay once, own forever. Zero subscription, zero hidden fees. - Completely offline: your documents never leave your device. Perfect for contracts and sensitive files. - Native Apple design: built with SwiftUI for a smooth, responsive experience that feels at home on iOS. - Multilingual OCR: recognizes English, Simplified Chinese, and Japanese text. - Files tab: all processed files saved locally for easy access, preview, and sharing.