PiyoLog is a childcare record-keeping app that can be shared by a couple in real time.
This mother and child health notebook app lets you keep records of milk, diaper changing, sleep, and the like with easy one-handed operation!
It provides a variety of features including a nursing timer, summary function, growth curve function, and more.

◆Built-in sharing function◆
Your input is shared immediately, so both parents can check on the baby's records anytime.
On days when daddy is taking care of the baby while mommy is out, mommy can still have peace of mind by checking sleep times and milk amounts when daddy records them.

◆Record types◆
Nursing, Formula, Pumped breast milk, Baby food, Snacks, Poop, Pee, Sleep, Temperature, Height, Weight, Baths, Walks, Coughing, Rashes, Vomiting, Injuries, Medicine, Hospitals, and any other information you like, as well as a childcare diary (with photos)

◆Unique features◆
・Designed for easy, one-handed operation even while nursing, etc.
・Equipped with time bar function providing daily summary at a glance
・Automatically aggregates and displays one-day amounts for nursing time, milk quantity, sleeping time, etc.
・Summarizes weekly variation in meals, sleep, bowel movements, and temperature in easily viewable graph
・Enables you to check how baby is growing with growth curve
・Notifies you of next nursing time

Terms of Use

What’s New

Version 5.6.4

bug fix

Ratings and Reviews

4.9 out of 5
532 Ratings

532 Ratings

slcerra ,

Only missing one thing!

This app is very helpful and easy to use. It is great for tracking expected and normal events and does have “activity” tabs for illnesses BUT there is only the one generic “other” option. When using the app, there are a couple of other things we track regularly with newborns and it would be great if we could make a tab for events that we track over and over, such as tummy time and, more importantly, spitting up or reflux events. As a pediatrician, that can be very helpful data when parents ask about it in the office and if it’s own tab could be made it would be much easier to track events of reflux that don’t involve spit up as well, which are harder to see/remember but just as indicative of the problem. In short, being able to add tabs for specific things would be so helpful!

Ash-274 ,

Great app. Does what I need it to do, really well

I rarely rate apps, but once in a while I find one that does exactly what I need it to do and it does it well. Though the interface is a little cartoon-y, the layout and functionality is excellent and my less-than-tech-expert wife mastered it almost instantly. For new parents, this lets you record all sorts of information that you find out you may need to tell the pedestrian

The customization is good (but I wish it transferred across devices, instead of having to set it on each one)

Working across devices was a critical need as my wife and I have this app on four of them, because we don’t know which of us will have data to enter or when. It updates fast, too.

The nursing timer is really good and much more useful than just using the basic stopwatch

It has the little ads which don’t really get in the way, but I would pay for an app that helps me as much as this one does if I could get rid if the ads. On the phones they take up a higher amount of screen real estate, but on iPads you hardly notice them.

Wisco98 ,

Didn’t know it would be so helpful

Something like this is not necessary, but it’s so incredibly helpful! My wife and I both use it to track her daily sleeping, eating, and voiding primarily but logging baths, growth points, injuries, photo and text diary entries, and exactly what she eats is so easy. When I go to the pediatrician I have lots of good quantified information. The new feeding log display option menu is in Japanese characters so I can’t tell what it lists but I love the app just the way it is. Thank you!!


Sakabou Inc.
133.9 MB

Requires iOS 11.0 and watchOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German, Japanese, Korean, Simplified Chinese, Traditional Chinese

Age Rating
Infrequent/Mild Simulated Gambling
In-App Purchases
  1. PiyoLog Premium Monthly Plan $3.49


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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