Firebase is a platform for developing mobile and web applications. It includes a number of client libraries for mobile platforms (iOS, Android) and web (JavaScript). In addition to the real-time database, it offers the ability to send push notifications, track usage statistics and much more. These tools are available for free, for more demanding features and more users offers different types of paid tariffs. In Ackee, we use the Firebase database in appropriate use cases to develop both mobile and web applications.