Nurses, EMTs, and Paramedics! Instead of watching the IV drip chamber and your watch, then multiplying by and dividing by... losing count and all of that fun stuff, just run Drip Timer.
Tap the upper portion of the screen each time a drop falls into the chamber. Don't need many - after three or five drops, tap the drip set (10, 15, 20, or 60gtts/ml) and your drip rate is displayed.
This also works for heartbeats and is useful for neonate heart rates, or to count breathing.
Absolutely free, and ad-free.