Caktus

There is already a tried and tested way of checking how hydrated you are.

For those that really want to quantify everything they drink, check out Vessyl.

Interesting take on this problem. Would love to get @panukp to discuss in here.

That'll be the one @taykcrane :)

We started developing The Hug because we wanted to change our hydration habits. The Hug coaches you towards balanced hydration by showing you relevant data, feedback and giving prompts. Thirst as a reflex does work well for a lot of people, but for the ones it doesn't (like me), The Hug is a useful device. By the way, Vessyl is an awesome product I think! Targeted especially to those who tend to gulp down too many calories....

Also, we just launched a Kickstarter today, I posted a new thread about that. Hope you don't mind!