Bradley McCarthy announces Cu Parachute 1.1 for iOS devices. Cu (Copper) Parachute is a Monte Carlo simulation based retirement income calculator for iPhone. Whether currently working or already in retirement, Cu Parachute can be used to help plan for retirement success. Cu Parachute will estimate a retirement income plan success probability by performing a Monte Carlo simulation of up to 100,000 complete retirement scenarios. Cu Parachute is $2.99 and can be downloaded from iTunes.