This week my "iLike" (pick of the week) was Waterlogged for iPhone.
Waterlogged is a water intake tracker. It resides on my home screen because it is something I use multiple times daily. What sets it apart from all the others is a the ability to create and save favorite containers. For example, I have a 16oz glass of water, a 20 oz cup, a 32oz cup, a 44oz cup and a 20oz sport bottle as my favorites. You can then set up which of these favorite containers you would like to use as 3D Touch Quick Actions making logging stupid quick and easy. Combine that with the handy reminders custom made by you and a notification badge count displaying the remaining ounces you need to keep pace with your intake for the day and you have a winner. Oh yeah, and it syncs your water intake with Apple's built-in Health Kit.
In future updates, I would like to see an Apple Watch counterpart as well as a widget. Also, although it claims to be Universal, data is not syncing across devices. Don't be fooled into buying the "+" version of this app. It's is not being actively updated and the UI is dated. Be sure to use this link. The app is free and additional features can be unlocked via in-app purchase. Now, go hydrate.