Company Elchemi Education Pte Ltd created these great apps:
iPlotWheel Lite, iScaleRuler, my SG ERP, ZooApp, Eco Gaia, PhysicsOTG, ZHSS, SST Open House 2012, NZ ICT Connection Live III, Big Sweep, Recycle Em' All, TJC Official, Math Invader, e-Heritage@ZHSS, C2HAMPS, K-SHARP+, K-Team, K-Comms, and others..