# Bengal Bytes Apps Hub (apps.bengalbytes.com)
> Built in Bengal. Used Everywhere.
> Official Apps Directory: https://apps.bengalbytes.com/
> Parent Studio: https://bengalbytes.com/
> Google Play Developer Profile: https://play.google.com/store/apps/dev?id=5575287110629554716

## Studio Philosophy
Bengal Bytes is a Bangladesh-based software studio crafting focused, single-purpose productivity and utility applications for mobile and web. Every application follows a strict "Zero-Bloatware" standard:
1. Zero third-party telemetry, trackers, or advertising SDKs.
2. 100% on-device processing and storage (Android Keystore / SQLite AES-256).
3. No mandatory accounts, email captures, or phone walls.
4. Native offline functionality wherever technically feasible.
5. Optimized binary footprints under 20MB.

## Flagship & Published Applications

### DocQR: PDF Scanner & AI Tools
- **Category:** Tools & Productivity
- **Status:** Live (Google Play Store)
- **Rating:** 5 / 5.0 (48 reviews)
- **Package ID:** `com.bengalbytes.docqr_tools`
- **Play Store Link:** https://play.google.com/store/apps/details?id=com.bengalbytes.docqr_tools
- **Size:** 18.4 MB | Requires: Android 8.0+
- **Description:** Your ultimate daily office companion. Scan documents to PDF, extract text with OCR, review resumes against job descriptions, and write cover letters — all without creating an account, with your data staying on your device.
- **Core Capabilities:**
  * Smart camera edge detection & perspective auto-correction
  * Advanced document binarization: Crisp B&W, Clean Color, and Magic Grey
  * Offline optical character recognition (OCR) with clipboard copy
  * AI Resume Matcher: Compare CVs against job postings for keyword gaps
  * Instant cover letter builder and PDF report exporter
  * Batch scan mode for multi-page contracts and receipts
  * Password protection & watermarking for sensitive PDFs
- **Privacy Guarantees:**
  * Zero external cloud tracking or telemetry
  * No account or registration required
  * Scanned files never leave your device storage
  * Camera permission strictly used during live capture

### DocQR Lite: PDF Scanner
- **Category:** Tools & Productivity
- **Status:** Live (Google Play Store)
- **Rating:** 4.9 / 5.0 (22 reviews)
- **Package ID:** `com.bengalbytes.docqr_tools_lite`
- **Play Store Link:** https://play.google.com/store/apps/details?id=com.bengalbytes.docqr_tools_lite
- **Size:** 6.8 MB | Requires: Android 6.0+
- **Description:** A stripped-down, faster version of DocQR built for lower-end devices and limited storage. Scan to PDF and run OCR with the same on-device privacy — just a smaller, lighter install.
- **Core Capabilities:**
  * Ultra-compact binary under 7 MB
  * Instant camera shutter with minimal latency
  * Aggressive PDF file size compression for WhatsApp or email sharing
  * Offline gallery import & multi-page document creation
- **Privacy Guarantees:**
  * No internet permission requested or required
  * 100% offline operation guaranteed
  * Zero background services running

### NexAI: Secure Multi-LLM Suite
- **Category:** Productivity & AI
- **Status:** Live (Google Play Store)
- **Rating:** 5 / 5.0 (36 reviews)
- **Package ID:** `com.nexai.nexai`
- **Play Store Link:** https://play.google.com/store/apps/details?id=com.nexai.nexai
- **Size:** 14.2 MB | Requires: Android 9.0+
- **Description:** Unlock powerful AI directly on your phone. A privacy-first client that connects your own OpenRouter API key to access 300+ large language models — no tracking, subscriptions, or cloud storage of your data.
- **Core Capabilities:**
  * Native direct connection to OpenRouter API (Anthropic, OpenAI, Mistral, Meta, DeepSeek)
  * Real-time token streaming with variable temperature and top-p tuning
  * Full Markdown, LaTeX, and Syntax-highlighted code blocks
  * Custom persona and system prompt library (Coder, Auditor, Writer, Tutor)
  * Local-only SQLite database encrypted with AES-256
  * Export chat transcripts to clean Markdown or JSON
- **Privacy Guarantees:**
  * Keys stored exclusively in Android Keystore / EncryptedSharedPreferences
  * No proprietary server between your phone and the AI API provider
  * Zero telemetry, analytics SDKs, or session replay trackers

### NexBiz Business Manager & Shop
- **Category:** Business & Commerce
- **Status:** Live (Google Play Store)
- **Rating:** 5 / 5.0 (29 reviews)
- **Package ID:** `com.bengalbytes.nexbiz`
- **Play Store Link:** https://play.google.com/store/apps/details?id=com.bengalbytes.nexbiz
- **Size:** 12.6 MB | Requires: Android 8.0+
- **Description:** NexBiz is an all-in-one, 100% offline business manager and shop app designed for retailers, wholesalers, and online sellers to effortlessly handle inventory, sales, and invoicing. It streamlines daily operations by tracking stock movements, printing professional A4 and thermal receipts, managing customer dues, and monitoring real-time expenses and profit-and-loss reports. With support for multiple languages and currencies, NexBiz empowers small businesses and F-commerce stores to stay organized, secure, and fully in control without needing an internet connection.
- **Core Capabilities:**
  * Track stock movements, batch expiry, and instant low-inventory alerts
  * Print professional A4 invoices and 58mm/80mm Bluetooth thermal receipts
  * Manage customer ledger dues (Khata) with payment history & credit limits
  * Real-time expense monitoring and automated profit-and-loss (P&L) reports
  * Multi-currency support ($ USD, ৳ BDT, € EUR, ₹ INR) & bilingual English/Bengali
  * F-Commerce & online seller tools: Track order statuses, returns, and delivery fees
  * Zero internet required — all financial data stays 100% private on your device
- **Privacy Guarantees:**
  * 100% offline storage — your sales revenue and customer books never leave your device
  * Zero monthly subscriptions or payment transaction cuts
  * No account registration or cloud login required

### Bengal Heroes
- **Category:** Culture & Heritage
- **Status:** Live (Google Play Store)
- **Rating:** 5 / 5.0 (31 reviews)
- **Package ID:** `com.bengalbytes.bengalheroes`
- **Play Store Link:** https://play.google.com/store/apps/details?id=com.bengalbytes.bengalheroes
- **Size:** 16.1 MB | Requires: Android 7.0+
- **Description:** Our very first release. A light, focused mobile experience celebrating Bengali heritage and history — built with the same one-job-done-well philosophy behind everything we ship.
- **Core Capabilities:**
  * Interactive archival biographies & rare timeline records
  * Bilingual switch: Instant toggle between Bengali and English
  * Quotes gallery with shareable typographic cards
  * Offline historical encyclopedia without requiring WiFi or mobile data
- **Privacy Guarantees:**
  * Zero advertising SDKs or tracking scripts
  * Completely free public cultural project


## Upcoming Applications (Innovation Lab)

### PaperTrail AI: Local Expense Auditor (Beta - 85% Complete)
- **Category:** Finance & AI
- **Target Release:** Q4 2026
- **Concept:** Point your camera at any receipt, bill, or invoice. PaperTrail extracts line items, categorizes tax deductions, and flags anomalies using an edge ML vision model that never transmits financial documents over the cloud.
- **Features Planned:**
  * Edge vision extraction
  * Tax deductible categorization
  * CSV & PDF accountant export
  * Zero financial cloud sync

### CodeByte Mobile: Pocket Developer Lab (Alpha - 70% Complete)
- **Category:** Developer Tools
- **Target Release:** Q1 2027
- **Concept:** An ultra-fast toolkit for developers on the go. Test regular expressions against multiline text, craft HTTP curl requests with syntax highlighting, and decode JWT tokens in the palm of your hand.
- **Features Planned:**
  * Real-time regex regex tester
  * Offline JWT decoder & verifier
  * cURL request composer
  * Base64 & Hash visualizer

### AuraFocus: Binaural Productivity Studio (Security Audit - 92% Complete)
- **Category:** Health & Focus
- **Target Release:** Q4 2026
- **Concept:** Unlike commercial white noise apps that download gigabytes of looped mp3s and bombard you with subscription popups, AuraFocus generates pink noise, rain, and 40Hz gamma waves procedurally on your device chip.
- **Features Planned:**
  * Pure algorithmic sound synthesis
  * Zero megabyte audio streaming
  * Pomodoro flow timer
  * Zero notifications or ads

### Bengal Voice: Edge Speech Engine (Research - 45% Complete)
- **Category:** AI & Speech
- **Target Release:** Q2 2027
- **Concept:** A dedicated, lightweight acoustic model running on Android Neural Networks API (NNAPI) that transcribes spoken Bengali (Standard & Regional dialects) to text with sub-second latency and zero external server reliance.
- **Features Planned:**
  * On-device Bengali ASR model
  * Phonetic dialect normalization
  * Export to docx & txt
  * 100% offline acoustic inference


## Contact & Developer Verification
- **Support & Developer Relations:** contact@bengalbytes.com
- **HQ:** Bengal Region, Bangladesh
- **Verification:** Official Play Store Developer ID: 5575287110629554716
- **Deep Documentation:** https://apps.bengalbytes.com/llms-full.txt
- **JSON API:** https://apps.bengalbytes.com/api/apps