Onshape vs SelfCAD

Onshape is a browser-accessible 3D CAD platform for parametric modeling of solids, surfaces and sheet metal, with iOS and Android apps also available. It supports assembly design, rendering, simulation, CAM and 3D-print export. Simulation covers linear static and modal analysis for stress, deformation and natural frequencies; CAM supports machining from 2.5-axis through 5-axis machines. Collaboration includes multi-user editing, instant sharing, real-time communication and access controls. Built-in product data management includes edit history, version control, release management, search and design-data sharing. The Free Plan is for non-commercial use, with publicly accessible documents and unlimited public storage. Standard costs $1,500/user/yr; Professional costs $2,500 per year. Qualified professionals may be eligible for a Professional trial of up to six months without a credit card. Enterprise uses custom pricing. Onshape says updates arrive every three weeks without installations or downtime. Listed integrations include Slack, Arena PLM, Altium Designer, FeatureScript, REST API and the App Store.

SelfCAD is a 3D modeling application that covers work from sketching and sculpting through rendering and 3D printing. It runs in a browser without downloads and also has a PC version for offline project work and storage; online and offline projects synchronize. Listed platforms are web, Windows, macOS and Linux. Tools include sculpting, animation, image-to-3D conversion, shape generators and model changes such as extrusion, reshaping and simplification. Designs can be rendered and prepared for printing with a built-in slicer compatible with most FDM 3D printers. The software supports industry-standard 3D formats and includes interactive tutorials, lessons, videos and starter courses. A limited free plan offers basic modeling. Pro plans add full modeling tools, rendering, animation and image-to-3D. A 10-day trial gives access to all products, requires no credit card and can be canceled anytime. Listed prices include $14.99 a month, $139.99 a year and $599, paid once for a perpetual license.