Blufit There were already a few hydration apps about but we thought they weren't very helpful - however we did come across an indiegogo campaign for this smart bottle/app which was essentially what our concept was. Its a glass bottle that determines how much water you need, how much you've drank and alerts you when it's time to hydrate. As you drink it automatically records the time and amount of water you've drank and transmits the data to your phone, and has customizable alert lights, sounds and phone notifications when you are behind. You still have to manually input weight, age, temperature, humidity etc to the app. Although the campaign has some pissed off investors because there's no sign of production, we felt we could zone in on the issue of hydration in the elderly instead anyway to make a more original concept that hasn't really been done.