DaysyDay Cycle, Period Tracker

Name: DaysyDay Cycle, Period Tracker
Rating: 3.4 (99 reviews)
Author: Valley Electronics

Track your period & fertility

Only for iPhone

Free · Designed for iPhone

99 Ratings
Ages

16+
Years
Category

Medical
Developer

Valley Electronics
Language

EN
+ 5 More
Size

35.8
MB

iPhone

Winner of a Best of Swiss Apps 2021 Award, the companion app to the Daysy fertility tracker is designed with the feedback from our users and decades of experience in the fertility tracking market. Together, Daysy and DaysyDay provide you with the knowledge and tools needed to identify your fertile window and make informed and powerful choices about your menstrual cycle, fertility, and health. KEY FEATURES: Past, Present and Future The easy-to-read calendar and an uncluttered temperature curve make it easy to view your fertility status, ovulation, and menstruation for the past, for today, and what is predicted in the coming month. Identify Irregularities The temperature curve and easy-to-read average and individual cycle statistics can help you easily identify cycle irregularities and provide insights on how current events affect your overall cycle. Take Notes Daily data cards let you easily track additional cycle features. Track cervical mucus, intercourse, and your own notes about your fertility and cycle. Share Your Data Invite your partner to download the DaysyDay Partner app and then choose which data can be shared and viewed. Contact Our Expert Team Use the Contact Support feature in the Help menu to easily reach out to our expert team if you need advice and support. Our team is here to help you every step of your fertility tracking journey.

Ratings & Reviews

3.4

out of 5

99 Ratings

Best tracker so far but does not take correct temp
01/07/2025

jdhbxhkdvkncf
This is the best tracker for a real menstruation and ovulation tracking. It’s the only one that actually considers the rest of the female population that does not run on precisely 27 days. Now the issue is the temperature reading is always lower than what my other four thermometers read. So if you’re trying to track your actual body temperature this may not be accurate, but it does give you a consistent temperatures even if it is low. And make sure that you are taking your temperature correctly because you’re not allowed to take it more than once. So if you don’t put it under your tongue correctly, you will have a bad reading and it will mess up their predictions

Developer Response
Thank you for your review! Daysy is tracking your temperature changes over time (compared only to values collected by its own sensor) and is not designed nor calibrated as a "fever" thermometer, so the values may be a bit different than an over the counter thermometer. Also, Daysy's algorithm is designed to disregard the occasional "outlier" reading and will use its knowledge of your cycle to calculate the fertility status for that day, always erring on the side of caution. Please feel free to reach out to our support team with any questions or to discuss in more detail - info@usa.daysy.me
Best tracker so far but does not take correct temp
01/07/2025

jdhbxhkdvkncf

This is the best tracker for a real menstruation and ovulation tracking. It’s the only one that actually considers the rest of the female population that does not run on precisely 27 days. Now the issue is the temperature reading is always lower than what my other four thermometers read. So if you’re trying to track your actual body temperature this may not be accurate, but it does give you a consistent temperatures even if it is low. And make sure that you are taking your temperature correctly because you’re not allowed to take it more than once. So if you don’t put it under your tongue correctly, you will have a bad reading and it will mess up their predictions
Developer Response 01/31/2025
Thank you for your review! Daysy is tracking your temperature changes over time (compared only to values collected by its own sensor) and is not designed nor calibrated as a "fever" thermometer, so the values may be a bit different than an over the counter thermometer. Also, Daysy's algorithm is designed to disregard the occasional "outlier" reading and will use its knowledge of your cycle to calculate the fertility status for that day, always erring on the side of caution. Please feel free to reach out to our support team with any questions or to discuss in more detail - info@usa.daysy.me
Love it- but improvements could be made
11/04/2023

Lydia Schmidt
Overall I love the Daysy and the app! The 2 changes I wish I would see are: having the temperature graph show smaller increments, and being able to sync the daysy with other apps. The graph showing 0.1 degree increments (F) are helpful, if not necessary for those of us using daysy as a tool when avoiding pregnancy with FAM. Being able to easily sync the daysy to automatically put temps in other apps (such as read your body) would be very helpful, as many of us use multiple apps to track things. This is something temp drop is doing and a reason why I may make the switch.

Developer Response
Thank you for your detailed feedback. We will be sure to pass this along to our development team.
Love it- but improvements could be made
11/04/2023

Lydia Schmidt

Overall I love the Daysy and the app! The 2 changes I wish I would see are: having the temperature graph show smaller increments, and being able to sync the daysy with other apps. The graph showing 0.1 degree increments (F) are helpful, if not necessary for those of us using daysy as a tool when avoiding pregnancy with FAM. Being able to easily sync the daysy to automatically put temps in other apps (such as read your body) would be very helpful, as many of us use multiple apps to track things. This is something temp drop is doing and a reason why I may make the switch.
Developer Response 11/06/2023
Thank you for your detailed feedback. We will be sure to pass this along to our development team.
Good but can be great!
12/11/2024

3.144.13
I wished the app would provide more information on what is going on in that day in particular. As I transition from red to yellow and green, it would be great if there was a little AI or smart box that gave you tips and info for that day and upcoming so woman can prepare mentally and emotionally. But over all it does the job! I’ve been using it for about 9 months now and my fiancé and I love it!! Truly recommend the product!!!
Good but can be great!
12/11/2024

3.144.13

I wished the app would provide more information on what is going on in that day in particular. As I transition from red to yellow and green, it would be great if there was a little AI or smart box that gave you tips and info for that day and upcoming so woman can prepare mentally and emotionally. But over all it does the job! I’ve been using it for about 9 months now and my fiancé and I love it!! Truly recommend the product!!!
Not very impressed
03/10/2021

lac2021
This app works faster than the previous one but the tracking options are very similar.I was hopping to track details such as spotting (bleeding outside of the regular period time), ovulation test results, etc. There are so many options in the market that track everything in one place and pair with BTM devices. I feel frustrated for having bought A device as expensive as daysy and not getting everything I need.Why can’t you save your period without syncing with the thermometer? This is crazy, I couldn’t sync my device at the moment I entered my period details and now I can’t input the actual day my period began. Very disappointed.

Developer Response
Hi Lac2021. Thank you for the feedback. We will be adding new features with each update to the app, so we think you'll be pleased as the app progresses.Your Daysy is where the fertility calculations are done and all data is stored, so you must have up to date information on the app before you can make any edits. It's actually best to edit directly on your Daysy (you can do this at any time of the day - or within 3 days for Daysy 2.0) or you can make changes to the previous day after synchronizing with the app the next morning. Our support team will be happy to walk you through these details if you email them at info@usa.daysy.me
Not very impressed
03/10/2021

lac2021

This app works faster than the previous one but the tracking options are very similar.I was hopping to track details such as spotting (bleeding outside of the regular period time), ovulation test results, etc. There are so many options in the market that track everything in one place and pair with BTM devices. I feel frustrated for having bought A device as expensive as daysy and not getting everything I need.Why can’t you save your period without syncing with the thermometer? This is crazy, I couldn’t sync my device at the moment I entered my period details and now I can’t input the actual day my period began. Very disappointed.
Developer Response 03/11/2021
Hi Lac2021. Thank you for the feedback. We will be adding new features with each update to the app, so we think you'll be pleased as the app progresses.Your Daysy is where the fertility calculations are done and all data is stored, so you must have up to date information on the app before you can make any edits. It's actually best to edit directly on your Daysy (you can do this at any time of the day - or within 3 days for Daysy 2.0) or you can make changes to the previous day after synchronizing with the app the next morning. Our support team will be happy to walk you through these details if you email them at info@usa.daysy.me

Thanks for using DaysyDay! In this version: - Updated display of the daily data in the weekly view - Chart includes a new data matrix displaying menstrual flow, intercourse, and mucus (An initial step to expand tracking features) - A link to explanations of the cervical mucus types added to the Mucus card - Visit the settings menu for a direct link to rate the app (Ratings are greatly appreciated!) - A few additional bug fixes and stability improvements to enhance your experience. Have questions or suggestions? Send us a message in the app (Settings -> Help -> Contact support). We are constantly working to add new features and improve your overall app experience.

Version 1.5.1

10/10/2023

Data Not Linked to You

The following data may be collected but it is not linked to your identity:
- Health & Fitness
- User Content
- Identifiers
- Diagnostics