KYLo (Know Your Load) from Prolyte is a load calculation tool now available as a standalone iPhone and iPad app in the iTunes app store. Completely rewritten and updated, the app is now available in a multi-language version with integrated manual, graphic display, and tips and tricks button. It offers a translation of loading tables and provides realtime calculations of complex loading on straight spans, with 99% accuracy. Point loads, UDL, and cantilever loads, for all Prolyte truss series, can be calculated for each type of truss, thereby showing the remaining load capacity. A new desktop version and a web tool version will be available soon.