Must-Have Health Toolkit for Women. Period Calculator manage your menstrual cycle records. Know your periods, and take control over yourself now.
Period Calculator Features:
Keeping Track of Menstrual Cycle:
1. Add, remove, edit records in the log book view.
2. Attach a remark on any period record.
3. When adding the current period, just leave out the end date, which will be automatically determined when you add the next period.
4. Get simple statistics such as average period length and standard deviation (when there are enough records).

Making Predications:
1. Predict when next period starts.
2. Tell the remaining number of days to the next predicted period, or the number of days late.
3. Predict the status of each day in the menstrual cycle (e.g., bleeding, fertile, ovulation).

Exporting and Importing Period Logs:
1. Backup your log by exporting it as a Period Log Book (.plb) file.
2. Restore your log by importing it from a previously exported Period Log Book file.
3. Can also use the export/import features to transfer your period records from one computer to another.

Customizing Parameters:
1. Default average period length (e.g., 28 days)
2. Default standard deviation of period length (e.g., 2 days)
3. Default average bleeding length (e.g., 4 days)
4. Maximum possible period length (e.g., 50 days)
5. Day of ovulation before next period (e.g., 14 days)

The license of this software is Free Trial Software, the price is $19.99, you can free download and get a free trial.