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

What’s New

Version 5.0.0

【New Feature】
・Custom Events
・Nursing Timer Alarm(15min, 20min)

Ratings and Reviews

4.9 out of 5
168 Ratings

168 Ratings

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!!

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!

sarahcurtiss ,

Loving it

So far this app is really great. The icons make it easy to know what you’re recording and the layout takes just a quick glance to notice patterns and trends. The ability to add a daily photo and diary is really cute and I know I’ll be looking back on all of this. I really love it, and it’s shareable!!


Sakabou Inc.
100.4 MB

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


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

Age Rating
Rated 4+
© 2017 Sakabou Inc.


  • Family Sharing

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

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