End-to-End Encryption (E2EE) P2P meets
Faster, Lighter Connections
Your conversations are protected by rigorous End-to-End Encryption (E2EE) and move directly between devices without passing through a central server. By stripping away unnecessary add-ons and ads, we deliver a much lighter and more pleasant core messenger experience.
Download on Google Play🍎 iOS version is currently under App Store review.
Why we designed and developed ieum
The repeated security breaches of major platforms and the reality that giant capital controls our data sovereignty without us knowing was a huge shock to us.
Seeing terms of service change unilaterally—where our private lives are collected or we are forced to view unwanted ads just because the service is 'free'—and feeling the fatigue of bloated apps, we decided we could no longer entrust our privacy and communication to giant platforms.
Thus, we created ieum: a fast and lightweight messenger focused purely on 'conversation' without shopping or ads, built on strict communication technology that leaves zero message content on central servers.
Everyday Convenience and Total Data Sovereignty
You, not the server, are at the center of every communication. ieum offers a multitude of innovative features.
Perfect E2EE & Direct Connection
Your messages and calls are wrapped in top-tier X25519-based E2EE and transmitted directly between devices. The central server only relays the connection status, and data is deleted from the queue immediately upon receipt confirmation. (Even cloud backups are encrypted and can only be decrypted on your phone.)
Zero Ads, Focused Purely on Conversation
There are no unnecessary shopping tabs or banner ads. Enjoy a lightweight and fast app performance that lets you focus only on communicating with the people who matter.
E2EE Multiplayer Group Chat
Supports secure group chats via a symmetric key exchange system. Rigorous encryption is guaranteed even in group rooms, and real-time announcements keep everyone updated on important messages.
High-Quality Voice & AR Video Calls
Enjoy crystal-clear P2P voice and video calls based on WebRTC. During video calls, apply facial recognition 'Cosplay Stickers' and real-time filters (Warm, Cool, Mono, etc.) for more vibrant communication.
Special Signal, 'CallingTalk'
Need to signal an urgent matter or the purpose of a call? Use 'CallingTalk' to send a message that acts like a phone call; the recipient sees the message on their incoming call screen and can reply immediately.
Flawless Message Deletion & Real-time Editing
Deleting a mistakenly sent message won't leave an awkward 'This message was deleted' trace. You can completely destroy messages on both ends at any time without time limits, or edit them within 10 minutes. You can also send self-destructing 'Poof Messages'.
Rich Interaction: Reactions & Replies
React to messages with various emojis and maintain clarity with inline replies. Pin important messages to the top of the chat room.
Zero Personal Info, Anonymous Signup
We don't ask for phone numbers or emails. Generate a perfect account using a lightweight mathematical Proof of Work (PoW) on your smartphone and a 12-word mnemonic. Connect safely via @ID or QR codes.
Find Nearby Friends
Easily find other ieum users nearby via location-based services. You control your privacy by toggling the distance calculation feature only when you want it.
Animated High-Quality Stickers
Equipped with the latest Noto Animated stickers, allowing you to send unlimited dynamic, premium emoticons.
Rigorous App Security: Passcode & Blocking
Lock app entry with a numeric passcode. Maintain your safe space by 'Hiding' or 'Blocking' unwanted users.
Secure Chat Backup & Restore
Your precious chat history is strongly encrypted and backed up to cloud storage. You can safely restore your conversations on a new device anytime using your mnemonic key.
Custom Themes & Notification Tuning
Customize Light/Dark themes, font sizes, and chat backgrounds. Fine-tune notifications for 1:1 chats, group chats, and reactions.
What makes us different?
| Feature / Item | Standard Messengers | ieum |
|---|---|---|
| Architecture | Centralized (All chats stored on main servers) | P2P-oriented with E2EE (Deleted from server queue upon receipt) |
| Authentication | Requires phone number, email, or carrier ID | No phone number needed (12-word Mnemonic & PoW) |
| App Size & Usability | Bloated with ads, shopping, and complex add-ons | Zero ads, lightweight app focused strictly on chatting |
| Edit/Delete Messages | Time limits on deletion; leaves a 'deleted message' trace | Unlimited two-way flawless deletion without traces; editing supported |
| Warrant Requests | Can submit original chat logs stored on servers | No data stored on servers; E2EE makes decryption impossible |