One Nice Thing is a simple application to help you focus on the good parts of life. The idea is simple: Each day you will fill add one nice thing that happened during the day, helping you look back and recognize that no matter how bad the day was there is always a silver lining. Once added those things are immutable. No matter what happens you can always rely on those notes being there for you to remind you that there have been good days in the past.
One Nice Thing doesn't collect your data, nor does it even have accounts. All of your notes are kept on your device.