+メッセージ(プラスメッセージ)

27.6K reviews
Content rating
Everyone
10M+
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About this app

"+Message" combines the best of SMS and email. An au, Docomo, and Softbank messaging app that lets you send photos and stamps using your phone number!
You can not only exchange stamps, photos, and videos, but also enjoy group messages!

[Characteristics of “+Message”]
■Easy & safe
・You can start right away without registering as a member!
- Since the destination is a phone number, you can safely exchange group messages.
・Messages from people who are not registered in your contacts will be displayed as "Not registered" so you can easily tell.

■Convenient
- Can be used with people whose icon is displayed in "Contacts".
・You can exchange photos and videos of up to 100MB.
・You can also share map information and contact information.
- With the "Read" feature, you can see that the other party has read your message.

■Fun
・Multiple people can exchange messages at the same time, so you can have lively conversations with friends and family.
- Find your favorite stamps and have expressive communication.

■Connect
・You can exchange messages with the company's official account.
・A company's official account is displayed with a "verified mark" indicating that it has been verified by the carrier, so customers can communicate with the company with confidence.


[“+Message” function]
■Message function
You can send and receive text (up to 2730 full-width characters), stamps, photos, videos, map information, and audio files. You can easily convey your feelings using stamps. Group interactions are also possible. (Maximum 100 people)
■Stamp store
All stamps can be downloaded for free.
■Invitation function
For those who are not using this app yet (those whose icon is not displayed in "Contacts"), we would like to introduce you to downloading this app.
■Read function
You'll know when the other person read your message.
You can also turn it off if you don't want to be notified that it's been read.
■Contact information
It is synchronized with the contacts on your device, so any edits you make will be reflected in both.
■Profile
You can register your favorite photo and name.
It will be visible only to the person you sent the message to or added to your "Contacts."
■Official account function
You will be able to receive important notices from companies, complete procedures, and make inquiries.


*Please note
・Please note that all data will be deleted if you press "Uninstall".
・If you are using a device released before April 2018, please use au Market.
● A message app that allows you to exchange with just a phone number! ● In addition to au and povo, it can also be used with UQ mobile and MVNO (au line).
Updated on
Jul 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Location, Personal info and 8 others
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

27.4K reviews
Luka Brajkovic
December 1, 2025
I can't send images, there is a limit to the amount of words you can use and you can't receive images. And I can't change it from this to for example Google messages. When I got my S23 this app was set to the default messaging app and when I try to change it, it says action not allowed. if anyone knows how to fix pls reach out to me
13 people found this review helpful
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Susan Nattembo
June 18, 2026
I love the app. It works so well and the ground themes are very lovely.
3 people found this review helpful
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Sam GS
August 17, 2026
It is a preloaded app and useless for me but I can't remove it from my phone! I would have given it minus 5 ⭐ rating if I could!
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What’s new

・公式アカウントの動作改善
Content rating
Everyone
Users Interact
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App support

About the developer
KDDI CORPORATION
kddideveloper.gplay@gmail.com
2-3-2, NISHISHINJUKU KDDI BLDG. SHINJUKU-KU, 東京都 160-0023 Japan
+81 80-5078-9238

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