Sumwhere Calculator

You worked out the price at the hardware store. A week later you're ready to start that project and it's gone. Sumwhere keeps every result you calculate, along with when and where you worked it out. It looks and works exactly like the calculator already on your phone. The difference is what happens after you total it up. Every result is quietly saved with the date, weekday, and time of day. Turn on location and it'll also remember where you were standing, so a number you worked out at the hardware store on a Monday morning or a customer's house on a Thursday afternoon is easy to find again, even weeks later. All the muscle-memory details of the calculator you already use. Switch to the scientific keypad, and landscape expands it into a familiar wide grid. For those who hate science but still like to remember — memory keys (MC, M+, M-, MR) sit on both keypads, with a clear on-screen…