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Mobile App Showcase

ExpenseBee

Smart Expense & Budget Tracker • Offline SQLite & Pro Subscription

ExpenseBee is a sleek, privacy-focused mobile financial manager built with React Native and Expo. It empowers individuals and small business owners to track daily expenses, set category budgets, visualize spending habits, and export data—without requiring external accounts or cloud connectivity.

  • 100% Private Offline Storage

    Your financial records are indexed locally in SQLite. Your data stays strictly on your phone.

  • Custom Categories & Budgets

    Define spending thresholds for groceries, bills, and leisure with instant visual alert indicators.

  • ExpenseBee Pro & CSV Export

    RevenueCat integration unlocking PIN lock security, custom exports, and ad-free experience.

🐝 ExpenseBee Tracker Simulator
Export Generated expensebee_report_2026.csv saved to local SQLite folder
Income $3,400.00
Expenses $1,280.00
Net Balance +$2,120.00
Under the Hood

App Architecture & Specifications.

SQLite Client-Side Storage.

ExpenseBee stores every transaction, category rule, and budget limit in an offline-first SQLite file on the device. Queries run locally at sub-5ms latency with full ACID transactional integrity.

// SQLite Transaction Schema & Query
CREATE TABLE IF NOT EXISTS transactions (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  title TEXT NOT NULL,
  amount REAL NOT NULL,
  type TEXT CHECK(type IN ('income', 'expense')),
  category TEXT DEFAULT 'General',
  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

RevenueCat Subscription Integration.

ExpenseBee Pro entitlements are validated seamlessly using RevenueCat SDK. Subscriptions unlock PIN lock security, custom category palettes, ad removal via AdMob, and CSV export tools.

// RevenueCat Entitlement Check
import Purchases from 'react-native-purchases';

const info = await Purchases.getCustomerInfo();
if (info.entitlements.active['expensebee_pro']) {
  enableProFeatures(); // Unlock CSV & PIN Lock
}