Alternatives

Products that do what DuoSync Online PMS Calculator does

Calculate when PMS is likely to occur

1IM
I made a privacy friendly and simple app to track my menstruation▲732
Hey HN, after the app I actually used to track my period wanted me to log in and save my data in the cloud, I decided to write my own. Most apps in this area are based on a subscription model and display far too much information anyway. For me, a simple calendar is enough where I can add a few notes if necessary. So that is the result of my work - a simple design and the data is only saved on the smartphone.
2024 · play.google.com
2
DuoSync▲7
Period tracking for partners. Understand her cycle.
Mar 2026 · duosync.io
3
Ovuli▲92
Ovulation calculator in your terminal
2020
4
LadyLog - A period tracker▲89
Easy to use period tracking app that respects your privacy
2024
5
My Period AI: Cycle Tracker▲5
AI-powered period tracking for real cycles
Jun 2026 · myperiodai.com
6
Pregnancy Conception Calculator▲3
Find out when you got pregnant by entering your due date.
May 2026
7
Pregnancy Due Date Calculator▲2
Estimate your baby's due date quickly and easily
27d ago · globaltoolsbox.online
8
Pregnancy Conception Calculator
Find Your Pregnancy Conception Date Easily | Ease Tools
Jan 2026
9
Pregnancy Calculator | Ease Tools▲3
Figure out your due date, pregnancy week, and trimester.
May 2026 · geteasetools.com
10
Nadi▲3
Add your menstrual cycle to your calendar
Jul 2026 · nadi.health
11
Date Calculator Pro▲3
Calculate dates, durations, and deadlines instantly
Jun 2026 · freewww.com
12
Miscarriage Risk Calculator▲3
Predict Pregnancy Risk Week by Week
Jun 2026 · miscarriageriskcalculator.org
13
Bloomy▲7
Predict first periods and track every cycle after
Jun 2026 · apps.apple.com
14
PERIOD.▲1
The cycle app that refuses to sell your data.
Jul 2026 · myperiod.app
15
PeriodlyWise▲2
Privacy-first period tracking with Cycle insights
Jun 2026 · periodlywise.com
16
Ovulation Calculator ▲1
Track ovulation, fertile window & cycle dates instantly
7d ago · globaltoolsbox.online
17
My Body's BFF: Cycle Patterns ▲3
Finally see the patterns in your cycle, mood and body.
28d ago · mybodybff.com
18
Pregnancy Calculator
Pregnancy Week Calculator Using LMP | Ease Tools
Jan 2026
19
Ovulation Calendar▲5
Ovulation Date Calculator & Fertile Window Calendar
Jul 2026 · ovulatecalendar.com
20
GetAgeCalculator▲3
Calculate exact age, birthdays, days lived & more
Jun 2026 · getagecalculator.com
21
Pregnancy Due Date Calculator▲1
Know Your Due Date. Plan With Confidence.
Jan 2026
22
Estri Health▲3
Track your menstrual and ovulation cycles with smart AI
Jan 2026
23
PhaseWise▲4
AI cycle guide for periods, PMS, and ovulation
Jun 2026 · apps.apple.com
24
SeeCalc▲5
Every calculator you keep googling, in one place
Jun 2026 · seecalc.com

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