Летная книжка is a free Android app developed by AirLexa that helps military pilots keep track of their flights and analyze statistics. This app allows users to create and edit records, including flight breaks, with flexible customization options. Users can view statistics for a specific time period, including various conditions, and receive alerts when flight breaks are over. Additionally, this app supports Google Drive cloud storage for data backup.

With Летная книжка, military pilots can easily manage their flight records, view statistics, and customize their flight graphs. While the app only caters to a specific niche market, it is an excellent tool for military pilots who need to keep track of their flights. The app is easy to use and is available for free on the Google Play Store.