ルナルナ ベビー：妊娠から出産後も、ママと赤ちゃんのアプリ
MTI Ltd.
＼LunaLuna's app for expectant and new mothers has surpassed 24 million downloads (*)／
LunaLuna Baby is basically free and provides daily updates on your baby's development until your due date.
゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜
【Basic Functions】
◆Pregnancy Week Counter, Monthly Age Counter
Register your last menstrual period start date or due date, and your pregnancy week will be automatically displayed.
You can also register your last menstrual period start date, so you can get an approximate due date even if it's not yet confirmed. After your baby is born, their monthly age will be displayed.
◆Today's Baby
From the third week of pregnancy, we provide daily updates on your baby's development.
It's supervised by obstetrician-gynecologist Dr. Takashi Sugiyama, so you can rest assured.
You can feel your baby's growth even from the early stages of pregnancy when they are still small.
Even after childbirth, we'll deliver daily information (advice for mothers, baby's development, etc.) supervised by pediatrician Dr. Toru Kikuchi.
◆This Week's Mom:
We'll inform you about the physical and mental state of mothers according to their pregnancy week by week, starting from the early stages.
It's convenient because you can anticipate future changes!
We'll provide advice to help expectant mothers have a more reassuring maternity life until childbirth.
◆Calendar:
You can quickly check your pregnancy week on the calendar, making it easy to read!
You can also see indicators of your physical condition, so please use it when planning ahead.
◆To-Do List:
Learn what you need to do from pregnancy to childbirth, along with mothers' experiences.
It's updated monthly according to your pregnancy month, from the early stages (2 months pregnant) to your due date.
In addition, we also deliver a shopping list that shows the necessary maternity and baby goods according to your pregnancy week.
Please use it to help you prepare to become a mother!
◆Advice Column:
An advice column function exclusively for mothers using Lunarluna Baby.
You'll likely find a lot to relate to among other mothers! If you're wondering, "Am I experiencing the baby blues?" or "How do other mothers handle this?", please feel free to talk to other mothers.
Please share your experiences and advice with other mothers!
◆Maternal and Child Records
A maternal and child record function usable from pregnancy through childcare.
You can track your weight during pregnancy and your child's growth curve in graphs, and receive birth and childcare information specific to your area from your local government!
*The maternal and child record uses the maternal and child health handbook function provided by the "Maternal and Child Health Handbook App, BoshiMo" service, which can be managed on your smartphone.
◆Everyone's Surveys
A function that allows you to vote on themes related to pregnancy and childcare.
By voting, you can see the real experiences of other mothers using Lunarluna Baby through survey results!
Themes are set for each stage from early pregnancy to childcare, so you can learn "How did other mothers handle this stage?"
◆Mental Care
During pregnancy and postpartum, hormonal fluctuations can cause discomfort. Mental care allows you to understand your current state with a score.
By subscribing to a paid plan, you can also use the following services:
◆Messages for Mom (Paid Feature)
You will receive daily messages from your obstetrician tailored to your gestational week, from early pregnancy until your due date.
The messages are supervised by obstetrician Dr. Takashi Sugiyama.
◆Messages for Dad (Paid Feature)
You can easily share weekly changes in Mom's physical and mental state, as well as the baby's condition, with Dad.
◆Food Feature (Paid Feature)
You can check whether each food item is safe to eat during pregnancy.
We provide information on things to be aware of regarding foods you normally eat, and their effects on your unborn baby.
This is original content from Lunarluna Baby, supervised by an obstetrician.
【App Issues/Requests】
For inquiries regarding issues or requests, please contact us via email through the app:
Launch App > Menu > Contact Us
If you are unable to launch the app, please send an email to the address below.
lnln_baby@cc.mti.co.jp
Please note that our reception hours are 9:00 AM to 5:30 PM, excluding Saturdays, Sundays, and public holidays.
Also, we sincerely apologize, but we are unable to respond to individual comments within reviews.
*Download figures are as of April 2026.
【Recommended for people like this! 】
・For those pregnant with their first child (first-time maternity, first-time mother)
・For those expecting their second or subsequent child and wanting to remember "what to do and when" until their due date
・For those who want to know what their baby is doing during pregnancy
・For those who want to check their gestational age immediately during pregnancy
・For those who want to check the number of days until their due date immediately during pregnancy
・For those who are currently pregnant and using Lunarluna
・For those who have been using Lunarluna for fertility planning
・For those who want to be well-prepared to become a mother during pregnancy
・For those who want to know what to prepare by their due date
・For those who don't know what baby items, including baby clothes, to prepare
・For those who don't know what maternity items to prepare
・For those who want to know what to be careful of from early pregnancy until their due date
・Lunaruna For those who want to ask questions about pregnancy and childcare to mothers using a baby
- For those who want advice on baby toys and daily necessities
- For those who want to know "What do other mothers do in situations like this?"
- For those who want to share the baby's and mother's condition with their partner until the due date
- For those who want to know what is good and bad for the baby and mother during pregnancy
- For those who want to know what foods should be avoided for the baby and mother during pregnancy
- Daily messages from a supervising physician for 10 months and 10 days from early pregnancy until the due date Those who want to read this page:
- Those who want to share the excitement and anticipation around their due date with other mothers.
- Those who want to feel their baby's growth from early pregnancy.
- Those who want to know about the physical changes that will occur from early pregnancy onward.
- Those who want to record and manage their weight during pregnancy.
- Those who want to know the appropriate weight during pregnancy.
- Those who want to record their baby's height, weight, and what they can do after birth.
- Those who want to experience their baby's growth during their ten months of pregnancy.
- Those who want to spend their ten months of pregnancy with peace of mind.
LunaLuna Baby is basically free and provides daily updates on your baby's development until your due date.
゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜.+:。 ゜
【Basic Functions】
◆Pregnancy Week Counter, Monthly Age Counter
Register your last menstrual period start date or due date, and your pregnancy week will be automatically displayed.
You can also register your last menstrual period start date, so you can get an approximate due date even if it's not yet confirmed. After your baby is born, their monthly age will be displayed.
◆Today's Baby
From the third week of pregnancy, we provide daily updates on your baby's development.
It's supervised by obstetrician-gynecologist Dr. Takashi Sugiyama, so you can rest assured.
You can feel your baby's growth even from the early stages of pregnancy when they are still small.
Even after childbirth, we'll deliver daily information (advice for mothers, baby's development, etc.) supervised by pediatrician Dr. Toru Kikuchi.
◆This Week's Mom:
We'll inform you about the physical and mental state of mothers according to their pregnancy week by week, starting from the early stages.
It's convenient because you can anticipate future changes!
We'll provide advice to help expectant mothers have a more reassuring maternity life until childbirth.
◆Calendar:
You can quickly check your pregnancy week on the calendar, making it easy to read!
You can also see indicators of your physical condition, so please use it when planning ahead.
◆To-Do List:
Learn what you need to do from pregnancy to childbirth, along with mothers' experiences.
It's updated monthly according to your pregnancy month, from the early stages (2 months pregnant) to your due date.
In addition, we also deliver a shopping list that shows the necessary maternity and baby goods according to your pregnancy week.
Please use it to help you prepare to become a mother!
◆Advice Column:
An advice column function exclusively for mothers using Lunarluna Baby.
You'll likely find a lot to relate to among other mothers! If you're wondering, "Am I experiencing the baby blues?" or "How do other mothers handle this?", please feel free to talk to other mothers.
Please share your experiences and advice with other mothers!
◆Maternal and Child Records
A maternal and child record function usable from pregnancy through childcare.
You can track your weight during pregnancy and your child's growth curve in graphs, and receive birth and childcare information specific to your area from your local government!
*The maternal and child record uses the maternal and child health handbook function provided by the "Maternal and Child Health Handbook App, BoshiMo" service, which can be managed on your smartphone.
◆Everyone's Surveys
A function that allows you to vote on themes related to pregnancy and childcare.
By voting, you can see the real experiences of other mothers using Lunarluna Baby through survey results!
Themes are set for each stage from early pregnancy to childcare, so you can learn "How did other mothers handle this stage?"
◆Mental Care
During pregnancy and postpartum, hormonal fluctuations can cause discomfort. Mental care allows you to understand your current state with a score.
By subscribing to a paid plan, you can also use the following services:
◆Messages for Mom (Paid Feature)
You will receive daily messages from your obstetrician tailored to your gestational week, from early pregnancy until your due date.
The messages are supervised by obstetrician Dr. Takashi Sugiyama.
◆Messages for Dad (Paid Feature)
You can easily share weekly changes in Mom's physical and mental state, as well as the baby's condition, with Dad.
◆Food Feature (Paid Feature)
You can check whether each food item is safe to eat during pregnancy.
We provide information on things to be aware of regarding foods you normally eat, and their effects on your unborn baby.
This is original content from Lunarluna Baby, supervised by an obstetrician.
【App Issues/Requests】
For inquiries regarding issues or requests, please contact us via email through the app:
Launch App > Menu > Contact Us
If you are unable to launch the app, please send an email to the address below.
lnln_baby@cc.mti.co.jp
Please note that our reception hours are 9:00 AM to 5:30 PM, excluding Saturdays, Sundays, and public holidays.
Also, we sincerely apologize, but we are unable to respond to individual comments within reviews.
*Download figures are as of April 2026.
【Recommended for people like this! 】
・For those pregnant with their first child (first-time maternity, first-time mother)
・For those expecting their second or subsequent child and wanting to remember "what to do and when" until their due date
・For those who want to know what their baby is doing during pregnancy
・For those who want to check their gestational age immediately during pregnancy
・For those who want to check the number of days until their due date immediately during pregnancy
・For those who are currently pregnant and using Lunarluna
・For those who have been using Lunarluna for fertility planning
・For those who want to be well-prepared to become a mother during pregnancy
・For those who want to know what to prepare by their due date
・For those who don't know what baby items, including baby clothes, to prepare
・For those who don't know what maternity items to prepare
・For those who want to know what to be careful of from early pregnancy until their due date
・Lunaruna For those who want to ask questions about pregnancy and childcare to mothers using a baby
- For those who want advice on baby toys and daily necessities
- For those who want to know "What do other mothers do in situations like this?"
- For those who want to share the baby's and mother's condition with their partner until the due date
- For those who want to know what is good and bad for the baby and mother during pregnancy
- For those who want to know what foods should be avoided for the baby and mother during pregnancy
- Daily messages from a supervising physician for 10 months and 10 days from early pregnancy until the due date Those who want to read this page:
- Those who want to share the excitement and anticipation around their due date with other mothers.
- Those who want to feel their baby's growth from early pregnancy.
- Those who want to know about the physical changes that will occur from early pregnancy onward.
- Those who want to record and manage their weight during pregnancy.
- Those who want to know the appropriate weight during pregnancy.
- Those who want to record their baby's height, weight, and what they can do after birth.
- Those who want to experience their baby's growth during their ten months of pregnancy.
- Those who want to spend their ten months of pregnancy with peace of mind.
Developer email
lnln_baby@cc.mti.co.jp
Developer website
https://sp.lnln.jp/service/lnln_servisesCurrent version
8.9.0
Android version
9
Screenshots
