Onshape vs Spline

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.

Spline is a 3D design platform with sculpting, animation, parametric modeling, real-time rendering, AI editing, motion, and a built-in render engine. It can export 3D-print files and ship experiences to the web, Apple, and Android. Integrations include Webflow, Framer, Wix Studio, HTML/JS, React, Next.js, Swift, and Kotlin. The free plan costs $0.00 per month and includes limited personal files, unlimited viewers, watermarked web exports, and Spline Library access. Paid plans add export and higher-resolution options. Hobby costs $15.00 per month billed annually with 2,000 monthly credits; Pro costs $30.00 per month billed annually with 3,000 credits; and Max costs $70.00 per month billed annually with 10,000 credits. Enterprise has custom pricing and can provide private teams, centralized licensing and billing, SAML Single Sign-On, code and self-hosted exports, priority support, onboarding, and training. Enterprise customers can request a trial. Spline lists ISO 27001 and SOC 2 compliance.