DaysyDay Cycle, Period Tracker

Name: DaysyDay Cycle, Period Tracker
Rating: 3.5 (102 reviews)
Author: Valley Electronics

By: Valley Electronics

Track your period & fertility

▶

Features & Capabilities

Winner of a Best of Swiss Apps 2021 Award, DaysyDay Cycle is the companion app to the Daysy fertility tracker. Built from user feedback and decades of fertility tracking experience, it helps you identify your fertile window and make informed decisions about your menstrual cycle, fertility, and health.

Key features include a clear Past/Present/Future calendar and a temperature curve to view fertility status, ovulation, and menstruation; insights on cycle irregularities; daily notes for cervical mucus, intercourse, and personal observations; and easy data sharing with your partner via the DaysyDay Partner app. Our expert team is here to help whenever you need support on your fertility journey.

User Growth & Download Statistics

App Calendar Education

By:

Valley Electronics

Rating:

3.50

(102)

Version:

1.5.4 Last updated: 2026-05-27

Version code:

880779108

Creation date:

2020-12-08

Compatible devices:

Size:

55.81MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-07

Compare stats and ranking:

Ranking

# 164,864 ▲ 1,019

Other platforms

DaysyDay - Period Tracker (v1.5.3)

78,129 3.38

(369)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Valley Electronics

Apple Apps Store

https://apps.apple.com/us/app/daysyday-cycle-period-tracker/id1533071047

User Reviews

DaysyDay offers a minimalist, easy-to-use experience with quick Bluetooth syncing and a device that displays daily fertility status, which many long-time users appreciate. However, repeated concerns about high price, hardware durability, and inaccurate predictions persist. The app is viewed as limited with usability and backfilling restrictions, and users want more features (e.g., LH tracking and cross-app syncing). Overall, strong concept and usability countered by value, reliability, and feature gaps.

Pros

Minimalist, simple design for both the app and device.
Easy to use and intuitive for day-to-day tracking.
Bluetooth syncing between Daysy and the app is quick and reliable.
The device provides daily fertility status, reducing reliance on the app.
Long-term users report reliability and lasting value with years of use.

Cons

High price compared to other period-tracking options.
Hardware durability issues: devices break easily, including fragile temperature gauge/tips.
Unreliable cycle predictions and temperature readings in some users.
App limitations and usability problems: few features, not user-friendly, laggy, and restricted backdating/editing of past data.
Lack of integration/advanced features: no LH tracking, limited syncing with other apps, and inability to backfill beyond a 3-day window.

Recent reviews

Love this app!

by Us*****, 2026-03-29

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.

by pl*****, 2025-12-25

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.