STP One - STEP CAD Viewer

STP One opens STEP and IGES 3D drawings right on your phone — and measures them. Open a file and the overall dimensions (W x D x H) appear automatically. Tap two points for the distance. Pick a material and the part weight is calculated instantly from the solid volume (245 built-in materials). - Open STEP (.stp/.step) and IGES (.igs/.iges) 3D files, plus DXF/DWG 2D drawings - Automatic overall dimensions; measure two-point distance, point-to-edge and face-to-face perpendicular distance - Section view (X/Y/Z clipping); assembly parts list with hide/transparent per part - Volume, surface area and weight by material (245 materials) - Export 2D drawings to PDF and share - Touch controls: rotate, zoom, pan - a short guide appears on first launch - Works fully offline - no account, no ads, your drawings never leave the device For engineers, buyers, QC and sales on the factory floor: check a 3D file anywhere, no CAD seat required. Free: one file per day with viewing, overall dimensions and edge highlight, plus 3 free uses of every Pro feature. Pro (monthly or yearly): unlimited files, measurement suite, section view, parts list, weight by material, 2D drawings and PDF share. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://erp.lihaon.co.kr/privacy-stpone