My wife was diagnosed with cancer. She was told by her doctor to drink 1gal a day, because the chemo drug was bad on her kidneys. Queue me downloading like 6 water apps to track. One after another, they want you to buy them for stupid reasons, subscription models being the most prevalent. Who wants to pay $6 a month to track water drinkage? Other apps act like you are stupid, wont let you customize your daily intake, wont let you customize each serving, stupid ui/ux design that makes it time consuming to log. Bravo to the author for designing a simple effective app! God bless this person, and give them my thanks.