Do you remember?
It’s recommended you replace your toothbrush every 3 months. Thats a long time to remember. Why not have an app you can check, so you don’t forget?
Hit the button when you change your brush. The next time you find yourself wondering when you last changed your brush, check back and see how many days until you need a new brush.
Add the app to your home screen to help you remember to check or add to favourites/bookmark in the browser.