Open Roberta Lab vs SaySpark

Open Roberta Lab is a free online programming environment for learning with robots and microcontrollers. Its NEPO language uses graphical blocks assembled by drag and drop. The Lab supports hardware including Arduino boards, Calliope mini, LEGO Mindstorms EV3, micro:bit, NAO, LEGO SPIKE Prime and many other listed systems. Open Roberta Sim provides virtual robots for users without physical equipment. An integration also lets NEPO programs create and use artificial neural networks. The service runs in a standard browser on a PC, Mac or tablet without installation, and iOS and Android apps are listed. Programming works without an account; an account saves programs and settings, while sharing or gallery publication requires a verified email account. The site is hosted on Fraunhofer IAIS servers in Germany, with personal data kept within the EU. Visitor IP addresses are deleted from server logs after 30 days. The initiative targets children, young people, trainees and employees exploring STEM.

SaySpark is a robotics education platform for children, available through the web, Windows 10 or 11, and an Android companion. Children speak requests to the Spark AI tutor, hear its plan in plain language, and ask follow-up questions. The Spark Mini robot adds a microphone, speaker, camera, ultrasonic sensor, and motion sensor for spoken interaction, vision, distance measurement, and turns. It can tackle unfamiliar mazes, explain decisions at junctions, and use its camera to confirm an exit. A browser simulator provides challenges, a sandbox, world builder, and WASD controls, with five prompts available without an account. Lessons are arranged by age band with XP, badges, and a visible learning path. Classroom activities use class codes; teachers receive rosters, leaderboards, and assessments. The Windows download includes more than 20 guided challenges across five domains. Early access is free, with every feature unlocked; Spark Mini is separate hardware.