It's no secret that there is no life without water. And in order for our body to function normally, we need to consume at least 1.5 liters of fluid per day. But in the conditions of modern life, it is sometimes difficult to monitor the amount of water consumed. The app for iPhone 'WaterBalance' helps you keep your body hydrated. In order for the application to fully function, you need to create an account. To do this, you must fill in the fields: name, gender, weight, as well as write down some data about your daily routine. As soon as you fill in everything you will immediately be given the 'For Candidacy' award. You can get quite a lot of similar awards in the application: 'Persistence', 'Health', 'Guru', 'Expert' and so on. Awards are awarded for a variety of achievements, be it '1 Day Balance' or 'Knowledge of the Benefits of Water'. So, on the main screen of the application, we see a figure that personifies us – the user. Depending on how much water you consumed and how much you lost, the figure will be filled with water to a certain level. Also, the 'filling' will be displayed in the upper right corner in the form of a pie chart with a percentage. In order to receive reliable information, it is necessary to keep the application 'informed' of how much and what kind of liquid you have consumed. The application also keeps statistics, consumption and expenditure of fluid. In addition to the above function, the application also performs an educational function, so to speak, that is, it contains a number of interesting and useful facts about water. And yet, the application sends you notifications on your phone so that you do not forget to replenish liquid supplies in time. We can definitely say that the application is useful. And especially it will be useful for adherents of healthy lifestyle.