DaysyDay Cycle, Period Tracker

DaysyDay Cycle, Period Tracker

Track your period & fertility

102 ratings
154 reviews
Free

Details

  • Released
  • Updated
  • December 8, 2020
  • May 27, 2026

Features

DaysyDay Cycle, Period Tracker video #1 for iPhone
DaysyDay Cycle, Period Tracker screenshot #2 for iPhone
DaysyDay Cycle, Period Tracker screenshot #3 for iPhone
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DaysyDay Cycle, Period Tracker screenshot #5 for iPhone
DaysyDay Cycle, Period Tracker screenshot #6 for iPhone
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About

This app helps you understand your menstrual cycle and fertility. It displays your fertile window, ovulation, and menstruation predictions. You can also track additional data and share it with your partner.

Fertility status, ovulation, and menstruation prediction
Cycle irregularity identification
Daily data tracking (cervical mucus, intercourse, notes)
Partner data sharing
Expert support contact
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What users say

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What's New in DaysyDay Cycle, Period Tracker

1.5.4

May 27, 2026

Thanks for using DaysyDay! In this version: - Added new Valley Electronics AG postal address - Minor improvements and bug fixes Have questions or suggestions? Send us a message in the app (Settings -> Help).

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User reviews

Great app and device, but lacks things other trackers have on the market

This app is great and so is the device, but it really lacks insights and stats like other apps (Lively) have, even on their free plans. I’d appreciate more detailed insights and maybe a UI refresh? It’s sorta plain.

Accurate

Love this app!

Easily breaks

This is device is very expensive and yet the end of the temperature gage broke off so now this is useless to me as it won’t read a temp. I only had this a little over a year.

Really not great for cycle tracking

I’ve had this product for over a year now, and when you’re on top of it great. For real life and when you fall off and restart it’s really annoying as it doesn’t let you back date log periods to map out your cycle so far.

Honestly really not happy with the product in general, it’s slow to read, app isn’t flexible for logging, and it’s pretty pricey for what it is.
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Not for perimenopause

It’s been nearly 6 months and still has no clue about my cycle. I know myself better than this device. Has me fertile over 15 days. Prediction for period has not been correct. Don’t waste your money

Developer apps

User experience

🐞

Reported Bugs

4 issues

App crashes frequently

Bug

Sync fails or gets interrupted

Bug

Calendar and data display issues

Bug

Compatibility problems with newer devices

Bug

Requested Features

5 requests

Add LH test tracking

Feature

Allow more historical period logging

Feature

Integrate with Apple Health

Feature

Provide more cycle insights and analysis

Feature

Improve UI and data visualization

Feature

FAQ

What does the DaysyDay app do?

The DaysyDay app is a companion to the Daysy fertility tracker. It helps users understand their menstrual cycle, identify fertile windows, and track ovulation and menstruation predictions. It also allows for tracking additional cycle-related data and sharing it with a partner.

What are the key features of the DaysyDay app?

Key features include an easy-to-read calendar and temperature curve for viewing fertility status, ovulation, and menstruation for the past, present, and future. It also helps identify cycle irregularities, allows for daily data tracking, and enables sharing of data with a partner.

Is the DaysyDay app free to use?

Based on the provided information, the app is free to use. There are no mentions of in-app purchases or advertisements, suggesting a free monetization model.

What kind of data can I track with the DaysyDay app?

You can track daily data cards that allow you to log cervical mucus, intercourse, and your own personal notes about your fertility and cycle. This helps provide a more comprehensive view of your cycle.

Can I share my data with my partner?

Yes, you can invite your partner to download the DaysyDay Partner app. Once they have the app, you can choose which data you want to share and view with them, facilitating joint understanding of your cycle.