Design and analyze reinforced concrete columns, slabs, and corbels using the RC Design app for your iPhone or iPod touch. Intended for civil and structural engineering professionals and students, RC Design is based on ACI 318-08 and 318M-08. Features include tabs for rectangular and circular short columns, two-way shear design that displays a useful "Excess Shear Stress" diagram, and corbel design. The RC Beam Pack is an add-on and can be purchased using the iPhone OS 3.0 in-app purchase feature. This app provides accurate, comprehensive results and can save the user time spent on design and paperwork.