For nurses who
finish with a full bottle.

There is no official per-shift number. Mayo Clinic (2026) says needs depend on health, age, activity, where you live and the weather, and the NHS (2023) gives 6 to 8 cups or glasses of fluid a day as a guide. A 12-hour shift is half your day or more, so most of your fluid lands inside it. Set your own goal, with your clinician if you have a condition that affects fluids.

In one study by Alomar and colleagues, International Journal of Emergency Medicine (2013), 43 emergency department physicians and nurses were checked across 172 shifts. The authors concluded that most physicians, and to a lesser extent nurses, had decreased hydration status by the end of the shift. Less fluid intake was one of the factors linked to it.

Mayo Clinic (2026) lists two everyday signs that you are probably getting enough: you don't often feel thirsty, and your urine is colorless or light yellow. Dark urine can mean you need more.

Yes. The NHS (2023) says tea and coffee count toward your daily fluid, along with water, lower-fat milk and lower-sugar drinks.

Then plan refills around your breaks and log them in one batch when you get to your phone. Dropkin lets you log a whole saved bottle in one tap, or a ½ or ¼, and edit times in History later.

Reminders only arrive during the wake and sleep hours you set. You can change those hours, pause reminders for a while, or turn them off. There is no automatic rota or shift-pattern feature.

The water tracker is free: unlimited logging, saved vessels, reminders, Hydration Pace, widgets, Apple Watch, Shortcuts and 30-day history. Optional Pro adds the other worlds, extra styles and 90-day and full-year history.