Concord Consortium Lab vs LabXchange

Concord Consortium Lab is an open-source HTML5 framework for scientific models, visualizations, graphing, and probeware. Authors define Lab Interactives in JSON, combining models with inquiry controls such as buttons, checkboxes, sliders, and graphs. Interactives can be created, shared, and embedded. Listed model types include Next Generation Molecular Workbench, Energy2D, and Probeware, with bar and line graphs available for activities. Lab combines simulations from multiple modeling engines with data collection from sensors and probes; one demonstrated model explores charged and neutral atoms through two-dimensional molecular dynamics. The framework runs on Android, iOS, and the web, requires SVG support, and lists iOS Safari and Chrome for Android among supported browsers. Concord says current desktop browsers provide the best performance, while simpler models may run on tablets and phones. The project uses Simplified BSD, MIT, or Apache 2.0 licensing. Download archives are available, and local content must be served through a web server. Concord says student and teacher data is confidential and not used for targeted advertising.

LabXchange is a free digital science education platform created at Harvard University with support from the Amgen Foundation. Learners and educators can assemble videos, assessments, and simulations into personalized learning journeys. Its resource library includes simulations, interactive materials, worksheets, lesson plans, and educator resources. Virtual labs provide environments for working through experiments, and some simulations add a notebook containing background information. Educators can create private classes, share content, and track learner progress. Public material can be distributed through Google Classroom, Facebook, Twitter, Pinterest, or a direct link. LabXchange says it is ad-free, does not sell student data or use it commercially, stores student data on U.S. servers, and follows the NIST Cybersecurity Framework for security practices. Users may register directly or through Google or Facebook sign-on. The service supports Windows, macOS, ChromeOS, major browsers, and mobile browsers, and is intended for organizations and people aged 13 or older.