ChatBook

Name: ChatBook (Conversational Expense Tracker)
Version: 1.0
Platform: Android

Core Features
ChatBook is an intelligent expense tracking app focused on localized privacy protection, helping users easily manage daily finances.
Innovatively adopting conversational interaction, making expense tracking as natural as chatting.
All data is stored only on user's device and permanently deleted upon uninstallation, ensuring complete financial privacy.

Smart Expense Tracking
✅ In-app conversational tracking
Users can send messages containing financial information (amount + purpose) to ChatBook, which will automatically record the amount and identify expense category, with current date as default

✅ Auto-tracking via SMS (Optional)
Users can choose whether to grant permission to read financial SMS (e.g. bank transaction notifications) to automatically record transaction amounts and merchant information.
Privacy Commitment: Only extracts amount and merchant info - no SMS content is uploaded, data remains local.

✅ Flexible entry editing
Each expense record supports click-to-edit:

Participants: Select friends from contacts for bill splitting (only stores names and phone numbers)

Location: Tag approximate location (e.g. "Province/City/District") or manual input

Custom date: Defaults to current day, but can record past or future dates (e.g. planned expenses)

✅ Smart categorization
Automatically classifies expenses (e.g. "coffee"→Food & Drinks, "taxi"→Transportation) with manual adjustment option

Data Analytics
📊 Multi-dimensional reports

Daily view: Lists all income/expenses for the day

Monthly view: Summarizes daily spending trends for current month

Yearly view: Displays annual financial status by month

⚠️ Spending alerts
Set monthly spending limits to receive automatic warnings when exceeded

Social Customization
👤 Personalized avatar
Take or upload photo in settings for chat display (local storage only, never uploaded)

Privacy & Security
🔒 100% local storage
All data (SMS, contacts, locations etc.) never leaves your device - uninstalling erases everything completely
All permissions require explicit user authorization and are non-mandatory

📜 Compliance
No background services or third-party SDK data sharing

Target Users

Privacy-conscious young adults

Users needing bill-splitting (AA) features

Key Advantages

Innovative combination of chat interface + expense tracking

Privacy protection: Fully localized data processing

Contact: ajfarul.pkr210@gmail.com