Ive used this app for over a year now. It has been very useful and handy to use! Improvements could include: - adding a calculator for small computations (my odometer is broken so I have to add the mileage from a trip odometer manually...). - Im likely to lose an entry if I dont save an approximation of my gas consumption before I actually pump the gas... - using the partial fill-up function repeatedly before finally filling the tank does not produce accurate results. - calculating between $CDN & $US, and between km / 100 l and mi/gal is tedious for travel between the US and Canada. However, having proffered all these suggestion, Id never leave home without my Gas Cubby. Thanks for making it available!