Mei - AI messaging & customization
Unlock personalized conversations with our AI assistant, chat securely, and enjoy unique features that enhance your texting experience!

- 4.4.16-Prod Version
- 4.5 Score
- 439K+ Downloads
- In-app purchases License
- 3+ Content Rating
TO OUR VALUED USERS - Due to forthcoming updates in Play Store policy, it is possible that we will need to adjust our services soon. Further information will be provided shortly.
Mei is an enhancement of the standard SMS/MMS messaging application included with your device, merging the finest elements of messaging with unique features not found elsewhere.
Developed by creators who recognized a demand for a more comprehensive messaging solution and were weary of repetitive functionalities across various applications, we aimed to design one that fulfills all user desires and surpasses expectations, offering choices at each stage, opportunities to connect with others, and even chances to earn rewards.
Our app stands out as the only option featuring an optional advanced AI assistant named Mei (pronounced ‘May’), providing tailored insights about your conversations. Think of Mei as a trusted mentor or close friend who is always available to share personalized advice or observations regarding your discussions.
What’s the most effective way to communicate with someone? Is your friend's tone slightly different today? Could someone you just met be interested romantically?
Mei can identify insights and personality traits of your contacts during chats or simply from stored messages on your device (no need to exchange texts through our app first!). The AI is designed to keep you informed, ultimately fostering improved dialogues and relationships.
Enjoy free international communication securely, as we are the first messaging application to implement RCS (an upgrade to SMS via the internet) with end-to-end encryption when engaged in conversations with other users. Similar to iMessage's dual bubble system, messages revert to SMS/MMS (green bubbles) when interacting with non-users.
Customize the app completely, choosing theme colors and backgrounds. Organize conversations into folders and send bulk messages to custom groups. You can even transfer chats from other messaging platforms and convert them into SMS.
Connect with others through polling and the "Stream," where we link you to people, news, and products based on your communications. Additionally, accumulate credits towards your phone bill by using the app through our micro-transaction system.
Works seamlessly with MightyText, Pushbullet, and mySMS for desktop and web access (a dedicated desktop version will be launching soon). Mei also syncs with any Android smartwatch or wearable device.
Key AI Features:
- AI assistant can be toggled on or off anytime
- Provides individualized guidance for improved interaction
- Recognizes personality and demographic variations
- Discerns relationship intentions such as romantic or friendly (can even reveal hidden sentiments expressed in messages)
- Detects shifts in behavior and mood
Distinct Non-AI Features:
- Conversations are automatically sorted into folders (including spam)
- Creation of custom folders and labels
- Import chats from WhatsApp and Line
- Earn credits by engaging with Mei, viewing ads, and participating in anonymous polls
Additional Key Features:
- Fully customizable options, including dark mode and monochrome themes
- Schedule messages or cancel them prior to sending
- Supports dual SIM functionality
- Audio/voice messaging
- Mesh messaging features may be introduced soon
When Communicating with Other Mei Users…
- Rich Communication Service (RCS) messaging
- End-to-end encryption
- Send messages internationally without charges
- Disappearing messages that are deleted after reading
- Expiring messages deleted after a predetermined time
Our two applications, Mei and Messages Improved, share several common features. Messages Improved focuses more on commercial aspects, experimenting with advertisements and connecting users to desired products and services. This allows Mei to concentrate on nurturing personal relationships and facilitating opinion exchanges.
About Us
Mei (pronounced ‘may’) develops messaging technology that combines the latest AI to improve communication and efficiency. Our company was founded in 2016 by Es Lee, with the belief that data and AI, incorporated into the messaging channels we already use, could help create deeper human connections. Our team is primarily based in New York City, with developers around the world.
We developed the first SMS texting messaging app with built-in AI that provides personalized coaching and advice. Our latest products allow anyone to create customized AI that can communicate for them or replicate the coaching and interactions that were only possible with humans before. We’ve developed and deployed dozens of products and will continue to experiment with frontier technology. We welcome partners in this journey.
SMS Texting App for Android
AI with EQ
Technology has made it easier than ever to make new connections but the tools to help us maintain and enhance those connections haven’t progressed at all.
Our team has spent nearly a decade combining natural language processing, developing machine learning and neural network models, and one of the largest datasets of its kind to create an AI that can understand people through their text messages, and ultimately help co-pilot and automate authentic communication.
We started working on this because we felt technology and data could be used to improve the most important thing to many of us: our relationships. Since every relationship is different, AI can be most helpful if it can first learn about each user to personalize the help. Today’s AI, specifically large language models, may have 200+ IQ, but still lack emotional intelligence (EQ) which we’d like to work with partners towards changing.
Our guiding principles with our products to provide users access to information and technology that aren’t available elsewhere, while letting users decide and control how they want to use it.
- Version4.4.16-Prod
- UpdateMay 28, 2025
- DeveloperMessages + AI
- CategoryCommunication
- Requires AndroidAndroid 4.4+
- Downloads439K+
- Package Namecom.mei
- Signature16159195019cc5a2f691eea7b2b2677f
- Available on
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Customization of colors for text conversations
Accurate personality profiling of contacts
Seamless integration as a default messaging app
Minimal bloatware and user-friendly interface
High-quality image sending capability
Regular updates and responsive developers
Fun features like delayed sending and AI insights
Excellent performance stability compared to stock messaging apps
Issues with receiving and sending group messages
Problems with multimedia (MMS) attachments
Inconsistent notification alerts
Unable to transfer all previous messages
Delayed message delivery times
Certain features non-functional or buggy
Limited customization options for text backgrounds
Difficulty logging in or verifying phone numbers
Occasional crashing or freezing of the app