"Toothbrush Timer" is a no-frills iOS app that guides its users through proper daily brushing regimens.
With a standard set of tooth brushing time timers, the app also comes with a toothbrush tracker that reminds its users when to buy a new toothbrush, and also features a selection of oral hygiene tips.
Developed by Ryan Newsome, the app is a bit outdated (given that it was last updated in 2011), but the practical benefits it affords its users with is still timely and relevant.