＋メッセージ (Plus Message) is a communication app developed by NTT DOCOMO that utilizes Rich Communication Services (RCS) to enable messaging between users across major Japanese mobile carriers. It supports text, photos, videos, and stamps, functioning as a carrier-integrated alternative to traditional SMS. The app is notable for its ability to send messages using only a phone number, bypassing the need for separate account registration.
Overview · Full Intel report in progress
The App DNA
What makes this app unique?
For Mobile users in Japan seeking a carrier-integrated messaging platform that functions via phone numbers.
Key features
Enables text, photo, and video messaging between users of major Japanese mobile carriers using only phone numbers.
Supports group chat functionality for multi-user communication.
Allows users to send various stamps and stickers to enhance conversational expression.
Provides status indicators to show when messages have been delivered and read by the recipient.
How much does it cost?
Velocity
Who built it?
NTT DOCOMO
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iDアプリ （MVNO/SIMロックフリー端末版）User Sentiment
What do users think recently?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for ＋メッセージ（プラスメッセージ）
How's the app market?
The rivals identified
The Analyst's Read
Key takeaways for ＋メッセージ（プラスメッセージ）
Where is it heading?
Bottom line
This app serves as the standard RCS-based messaging infrastructure for major Japanese mobile carriers, prioritizing phone-number-based connectivity over traditional email or social media accounts.
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