LensBook

LensBook helps you record travel and everyday expenses from photos, voice, and shared images.

Take a photo of a receipt, menu, or price tag, or send a receipt screenshot from another app. LensBook helps turn it into an expense record by finding amounts and letting you review, correct, or mark the amount yourself. You stay in control before anything is saved.

Need to add an expense without a receipt? Use voice input and say a simple sentence such as "Coffee 4 dollars 50 at Starbucks" or "Starbucks 4500 won." LensBook extracts the merchant, amount, and currency and sends it to the same review screen.

LensBook is designed for travel, daily budgets, and any situation where expenses come in different currencies. Projects keep each trip or budget separate, and LensBook can automatically activate the project that matches today's date. Your records are stored locally on your device, with no mandatory sign-up or cloud sync.

Key Features

• Camera-based expense capture for receipts, menus, and price tags
• Automatic amount detection with clear manual review
• Mark the correct amount by circling or underlining it
• Voice expense input for English, Korean, Japanese, French, and Spanish
• Import receipt screenshots or images from the system share sheet
• Project-based tracking for trips, monthly budgets, and personal use
• Automatic project selection based on date
• Multi-currency records and exchange-rate based summaries
• Share saved expense cards and daily spending summaries
• Local-first data storage, backup, and restore
• Clear statistics, category summaries, and expense history
• No mandatory sign-up or cloud sync

LensBook is built to reduce friction, not add complexity. Capture, review, save, and keep your spending organized.