CHAT APP LIKE TG

Request for Development of a Hybrid Messaging App (Similar to Telegram/Signal)** **Overview:** I am looking for an experienced freelancer to develop a hybrid messaging app that is secure and encrypted, similar to Telegram or Signal.
The app should be compatible with both iOS and Android devices, as well as offer a web interface.
The main priorities are **data security** and **user privacy**.
**Reference Platforms:** - **Telegram**.
Intuitive user interface, multi-device synchronization, speed.
- **Signal**.
Focus on privacy and security, end-to-end encryption for all types of communication.
--- ### **Required Features:** #### **1.
Encryption and Security:** - **End-to-end encryption** for chat, voice calls, and video calls (similar to Signal).
- **Protection against man-in-the-middle attacks**.
- **Two-factor authentication (2FA)** to protect user accounts.
- **Self-destructing messages** with customizable timers.
- **Server-side encryption** for non-critical data (e.
., minimal metadata, if necessary).
- **App lock with PIN or biometric authentication** (fingerprint/face recognition).
- **Security notifications** (if encryption keys change, similar to Signal).
#### **2.
Core Messaging Features:** - **Real-time text messaging**.
- **Secure voice calls** and **video calls**.
- **Encrypted media sharing** (photos, videos, documents).
- **Group chats**, with the ability to create public or private groups.
- **Voice messages** and video messages.
- **GIF and sticker support**.
- **Push notifications** for new messages.
- **Reply to specific messages** or use **quote replies** in conversations.
#### **3.
User and Contact Management:** - **User registration via phone number or email**.
- **Contact synchronization** to easily find other users on the app.
- **Nicknames/pseudonyms** to maintain anonymity (optional).
- **Block and report users**.
#### **4.
Multi-device Sync and Access:** - **Simultaneous access across multiple devices** (smartphones, tablets, web).
- **Message synchronization** across all devices securely.
- **Encrypted backup** of user data (optional, user-controlled).
#### **5.
User Interface and Experience (UI/UX):** - **Simple, intuitive, and clean interface**, similar to Telegram, with quick navigation.
- **Dark mode** and **light mode**, with the ability to customize the appearance (colors, backgrounds).
- **Multi-language support**.
#### **6.
Advanced Features:** - **Offline mode**.
Allow users to compose messages while offline, which will be sent once they are online.
- **Bot and API support for developers**.
Ability to integrate bots into the app, similar to Telegram.
- **Public and private channels**.
Allow users to create channels for broadcasting content to a wide audience.
- **Polls and voting** within group chats.
#### **7.
Performance and Reliability:** - **Hybrid app** developed using frameworks like React Native or Flutter to ensure high performance on both Android and iOS.
- **Efficient battery and data usage**.
- **Fast loading times** and **minimal latency** for calls and message delivery.
#### **8.
User Privacy:** - **No unnecessary data retention**.
- **No tracking** of user activity.
- **Transparent privacy policy**, ensuring maximum user confidentiality.
#### **9.
Optional Integrations (Future Development):** - **Peer-to-peer secure payments** (e.
., cryptocurrency support).
- **Integration with external services** to extend functionality (e.
., Google Drive, Dropbox for file sharing).
--- ### **Technologies and Requirements:** - **Preferred hybrid framework**.
React Native or Flutter (specify which one you’ll use and why).
- **Encryption libraries**.
Use secure and reliable encryption libraries (e.
., OpenWhisper Systems for end-to-end encryption).
- **Server**.
Recommended use of a dedicated server with secure data handling and scalability.
- **Database**.
Secure solution for managing user data, with server-side encryption.
--- ### **Timeline and Budget:** - **Timeline**.
Provide an estimate of the development timeline, breaking it down into phases (e.
., front-end development, encryption API integration, testing and debugging).
- **Budget**.
Provide a cost estimate, including any potential additional expenses (e.
., hosting or server costs).
--- ### **Required Documentation:** - Well-documented source code.
- Installation and maintenance guide.
- Guidelines for implementing future features and security management.
Hybrid App Flutter iOS Development Java Mobile App Development ID do Projeto.
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