Apps like Simpluna: Menstrual Calendar

Here are some great alternatives to Simpluna: Menstrual Calendar by Omoidasu, Inc. :
Period Calendar Period Tracker
Period Calendar Period Tracker
★4.9
Moonbook: Menstrual assistant
Moonbook: Menstrual assistant
★4.6
Period Calendar
Period Calendar
★4.4
Period Tracker・Period Calendar
Period Tracker・Period Calendar
★4.4
Period Tracker and Calendar
Period Tracker and Calendar
★4.9
Menstrual cycle tracker - Days
Menstrual cycle tracker - Days
★3.9
Menstrual Cycle Period Tracker
Menstrual Cycle Period Tracker
★4.0
Period Tracker & Fertile days
Period Tracker & Fertile days
★4.1
Menstrual & Ovulation Calendar
Menstrual & Ovulation Calendar
★4.1
Period & Ovulation Tracker
Period & Ovulation Tracker
★5.0
Period Assistant
Period Assistant
★4.0
Clover－Period & Cycle Tracker
Clover－Period & Cycle Tracker
★4.5
LadysCalendar (Period)
LadysCalendar (Period)
★4.0
Period Tracker:Period Calendar
Period Tracker:Period Calendar
★3.3
Period Tracker Period Calendar
Period Tracker Period Calendar
★3.7
My menstrual calculator
My menstrual calculator
★4.5