Billings Note – Your Personal Diary for the Billings Ovulation Method (BOM) Billings Note is an app designed for women who want to track and better understand their reproductive cycles using the Billings Ovulation Method (BOM). With a simple interface and practical features, you can record your notes and monitor body signals in an organized and efficient way. Key Features: Record daily sensations and easily assign symbols View your notes in two modes: Calendar or Cycle, for better understandi