Developer Edward Kim says he makes $400 per day on an app he built called “Car Locator.” The Android app uses a phone’s built-in GPS to help users remember where they parked, and it alerts them when the parking meter is about to run out.
Originally, the app sold for $1.99, but Kim later bumped it up to $3.99 with good results. Approximately 70,000 users have downloaded the free version of the app, with far fewer purchasing the paid version.
