# REPLU — AI Messaging Copilot for Android
> The smarter way to reply.

## Summary
REPLU (https://replu.app, package: ai.replu.app) is an Android-native conversational AI copilot that detects visible messaging context in WhatsApp, WhatsApp Business, and Instagram Direct via an on-device floating bubble overlay. It generates contextual smart replies in multiple relationship tones and Hinglish/regional context, and provides voice-to-text translations with zero stored data.

## Key Features
- **Context-Aware Smart Replies**: Ephemerally parses visible messages via the Android AccessibilityService API to propose natural, contextually accurate responses.
- **Tone & Relationship Personalization**: Persona tones including Friendly, Professional, Casual, Flirty/Crush, and Family.
- **20+ Languages & Dual Script Engine**: Supports 20+ Indian and global languages in both authentic native scripts (Hindi, Bengali, Tamil, Telugu, Marathi, Gujarati, Kannada, Punjabi, Malayalam, Urdu, Bhojpuri, Nepali, Spanish, Arabic, Chinese, Japanese, Russian, Korean) and colloquial Romanized chat forms (Hinglish, Tanglish, Telgish, Banglish, Marathiglish, etc.) with automatic thread language detection.
- **Voice-to-Text Speech Translation**: Hold the floating bubble to speak your reply hands-free in your native language (Hindi, Hinglish, Tamil, Telugu, Spanish, etc.); REPLU polishes, translates, and types the reply directly into the chat.
- **Floating Mascot Bubble**: Draggable overlay featuring the REPLU mascot that activates when WhatsApp or Instagram is opened.
- **Zero-Storage Privacy Architecture**: Conversations are processed strictly in-memory over TLS 1.3 encrypted connections. 0 days data retention on all servers. Zero user conversation data used for model training under OpenAI commercial API agreements.
- **Strict User Control**: REPLU only drafts and inserts responses into the text input field; it NEVER sends messages automatically.

## Officially Supported Applications (Tier 1)
- WhatsApp (`com.whatsapp`)
- WhatsApp Business (`com.whatsapp.w4b`)
- Instagram Direct Messages (`com.instagram.android`)

## Quota & Pricing
- Starter Tier (Free): 5 AI Smart Replies daily, 3 Voice Translations daily (5s max audio duration).
- REPLU Pro: Unlimited AI Smart Replies, extended Voice Input & Speech Translation (up to 120s audio), all relationship personas, and priority neural inference.
  - India: ₹149/month or ₹999/year (Save 44%)
  - Global / US: $4.99/month or $39.99/year (Save 33%)

## Privacy & Security Verification
- Data in transit: 100% encrypted via TLS 1.3.
- Data retention: 0 days for conversation history.
- Device authentication: Android KeyStore + Google Play Integrity hardware verification.

## Full Documentation & Specifications
- Website: https://replu.app
- Developer: SydFoundry (sydfoundry@gmail.com)
- Privacy Policy: https://replu.app/privacy
- Terms of Service: https://replu.app/terms
- Full LLM Documentation: https://replu.app/llms-full.txt