This innovative Periodical app simplifies menstrual cycle tracking and fertility prediction. Utilizing the Knaus-Ogino method, it accurately calculates fertile days and allows for detailed symptom tracking, providing valuable insights into your cycle. Enjoy the peace of mind that comes with secure data backup, all without any cost! The app is entirely free and open-source, with the source code available on the developer's website. Need help or want to contribute translations? The developer is readily available via email. Download Periodical today for a streamlined approach to managing your reproductive health. Key features include:

• Fertility Tracking: Precise fertile day calculations using the Knaus-Ogino method.
• Menstrual Symptom Tracking: Monitor symptoms for a better understanding of your cycle.
• Data Backup: Securely backup your data to internal or external memory.
• Free Software: Download and use Periodical at no cost under the GNU General Public License.
• Translation Support: Contact the developer for assistance or to contribute translations.
• Open-Source: Access the source code for transparency and customization options.

Periodical offers a user-friendly and comprehensive solution for women seeking to understand their bodies better. Download now and take control of your reproductive health.