Abstract: Over 160,000 nanoHUB users have run over 7 million simulations in Apps mostly focused on semiconductor devices and materials modeling. nanoHUB created nano-Apps before Apple created Apps for the iPhone and made scientific codes usable for a much larger user group. Most scientific tools strive to be comprehensive in solving “any” simulation problem in a specific problem range. That comprehensiveness limits the use to experts, who require extensive training. nanoHUB has instead focused on delivering a spectrum of Apps (over 700 now) that individually have a limited capability such as a single crystals, PN-junction, MOSFET, or nanowire while the underlying tool could of course solve a much wider set of problems. We assembled some of these Apps that are essential for specific courses into small sets such as ABACUS (crystals, bandstructure, drift-diffusion, pn-junctions, BJTs, MOScaps, MOSFETs) . The usability results are stunning. Our user analytics prove that over half of the simulation users participate in structured education through homework/project assignments. We can identify classroom sizes and detailed tool usage . We can begin to build mind-maps of design explorations and assess depth of explorations for individuals and classes. While parts of academia struggled to innovate curricula, we have measured the median first-time App insertion into a class to be less than six months. Over 180 institutions have utilized nanoHUB in their curriculum innovation in over 3,600 classes. 2 million nanoHUB visitors explore lectures and tutorials annually. With such a community presence we believe nanoHUB is the platform of choice to deliver online modeling, simulation, virtual environments, and lectures for the US initiative on workforce development . https://nanohub.org/groups/abacus ABACUS – Assembly of Basic Applications for Coordinated Understanding of Semiconductors. A one-stop-shop for teaching and learning semiconductor fundamentals. Krishna Madhavan, Michael Zentner, Gerhard Klimeck, “Learning and research in the cloud”, Nature Nanotechnology 8, 786–789 (2013) TEDx Talk, Klimeck, “Mythbusting Scientific Knowledge Transfer with nanoHUB.org”, https://www.youtube.com/watch?v=PK2GztIfJY4 . https://nanohub.org/groups/semiconductoreducation Semiconductor workforce development homepage on https://nanoHUB.org . Room: 260, Bldg: Dreese, 2015 Neil Avenue, Columbus, Ohio, United States, 43210, Virtual: https://events.vtools.ieee.org/m/310831