Caffiend - Caffeine Tracker

This is the perfect app for tracking your caffeine intake. The developer pays attention to detail and has done a great job of incorporating modern iOS features including HealthKit. The watchOS app is the icing on the cake!

This is an awesome app for tracking both hydration and caffeine. The only very annoying problem that the developer seems to be struggling with for the past few months are unit conversions between imperial and metric. I use the app exclusively in metric, however the Today widget seems to interpret the hydration value in mL as oz and converts it again to ml showing a value about 30x the actual. Similar effect happens when adding fractions of custom drinks (e.g. 2 of my custom water glasses). If not for this issue would be 5 stars. If the app implemented estimated BAC (blood alcohol content) in addition caffeine through HealthKit it would fill a big functionality gap and would be worth spending good money on!

It’s confusing to start adding regular home brewed coffee. I also bought this to use with apple watch and it is not working.

Works as advertised!!! However, the database doesn't count coffee/tea as hydration. I get it. Casual caffeine drinkers experience a diuretic effect. But those of us who are longtime caffeine users do not experience this effect (Google Scholar reveals scores of studies that show this). I suggest a switch to enable the fluid amount in drinks to count as hydration. Casual drinkers should leave the switch off. This feature would make this an ideal app.

Purchased throw but ended up not using it because it has no way to add a drink from the watch. Really needs that feature plus a complication to be as good as other apps.