Apps like Simpluna: Menstrual Calendar

Here are some great alternatives to Simpluna: Menstrual Calendar by Omoidasu, Inc. :
Moonbook: Menstrual assistant
Moonbook: Menstrual assistant
★4.7
Ladytimer Period Calendar
Ladytimer Period Calendar
★4.2
Period Calendar
Period Calendar
★4.4
Period Tracker - Ovulation Cal
Period Tracker - Ovulation Cal
★4.6
Period Tracker・Period Calendar
Period Tracker・Period Calendar
★4.4
Menstrual cycle tracker - Days
Menstrual cycle tracker - Days
★4.1
Menstrual Cycle Period Tracker
Menstrual Cycle Period Tracker
★4.2
Period Tracker & Fertile days
Period Tracker & Fertile days
★4.1
Menstrual & Ovulation Calendar
Menstrual & Ovulation Calendar
★4.1
Period Tracker
Period Tracker
★4.3
Period Assistant
Period Assistant
★4.0
Clover－Period & Cycle Tracker
Clover－Period & Cycle Tracker
★4.4
LadysCalendar (Period)
LadysCalendar (Period)
★4.1
Period Tracker Period Calendar
Period Tracker Period Calendar
★3.7
Bella Period Calendar
Bella Period Calendar
★4.1
My menstrual calculator
My menstrual calculator
★4.5