PenniBook is a fast, offline-first expense tracker and budget planner — 100% ad-free, forever. Track daily spending, plan monthly budgets, split bills with roommates, and manage shared expenses in real time. No ads. No internet required. Your data stays private on your device.

Whether you're tracking daily household spending, planning monthly savings, managing bill reminders, or splitting travel expenses with roommates, PenniBook makes money management lightning-fast, offline-friendly, and completely free of ads.

🌟 WHY CHOOSE PENNIBOOK

★ 100% Free of Ads — zero pop-ups, zero banner ads, zero commercial distractions, ever ★ Offline-First Architecture — log transactions anytime, anywhere, no internet needed ★ Secure Local Storage — personal records stay on your device with biometric and PIN protection ★ Dual-Mode Ledger Isolation — complete separation between private personal accounts and shared group ledgers

⚡ SMART QUICK ADD (NATURAL LANGUAGE ENTRY) Logging expenses shouldn't slow you down. Add transactions in under a second with everyday conversational typing:

Natural Typing — just enter "Lunch 250", "Uber 80", "Coffee 150", or "Salary 60000"
Smart Auto-Categorization — PenniBook parses the amount, detects the note, and maps the right category for you
Instant Save — no rigid dropdowns or multi-step screens; type, tap, and done

👥 SPLIT BILLS & SHARED ACCOUNTS WITH DEBT SIMPLIFICATION The easiest way for couples, roommates, flatmates, and travel groups to split bills and settle up:

Real-Time Cloud Sync — instant synchronization keeps every group participant aligned
Smart Debt Simplification — the built-in settlement engine calculates net balances between participants, minimizing total transactions needed to settle debts
Role-Based Permissions — manage groups with clear Owner and Member access controls
5-Tab Joint Workspace — dedicated modules for Overview, Ledger History, Group Planner, Visual Insights, and Member Settings

👁️ ONE-TAP BALANCE PRIVACY MODE Check your finances on the go without worrying about shoulder surfers in public spaces:

Discreet Balance Masking — tap the eye icon next to your Available Balance or Shared Ledger to instantly mask account balances, income, and expense figures with ••••
Available Across Workspaces — works seamlessly on both your Personal dashboard and Shared Account overviews

🎨 FULLY CUSTOMIZABLE CATEGORIES & COLOR THEMES Organize your expenses your way with zero paywalls:

Custom Icons & Emojis — browse a rich 18-icon grid across categories like Food, Lifestyle, Transport, Home, and Finance
Dynamic Palette & Color Picker — assign custom accent colors that carry over into your visual donut charts, progress bars, and spending breakdown feeds
Workspace Independence — shared group expenses never clutter your personal category manager, keeping your personal ledger clean and organized

📊 MONTHLY BUDGETING & FINANCIAL PLANNING

Category Budget Limits — set spending caps for groceries, dining, entertainment, and shopping to stay on pace
Multi-Wallet Tracking — monitor cash, credit cards, bank accounts, and digital wallets in a unified dashboard
Upcoming Bill & Subscription Reminders — track recurring payments, credit card statements, and renewal dates before late fees hit
Dynamic Visual Insights — identify spending trends through interactive donut charts and category breakdown graphs

🔒 SECURITY, BACKUP & DATA FREEDOM

Biometric & PIN Gate — protect sensitive ledger access with fingerprint, face unlock, or device PIN authentication
Flexible Data Exports — export clean, audit-ready financial statements in formatted PDF documents or CSV spreadsheets
Full Data Ownership — generate encrypted full-database JSON backups or restore data across devices with complete control

Stop wondering where your money went and eliminate awkward bill-splitting conversations. Download PenniBook: Budget & Expense today to experience fast, private, and ad-free financial tracking!