NapkinBook
napkinbook.comA computational canvas for connecting evidence, assumptions, data, and forecast charts.
A computational canvas for connecting evidence, assumptions, data, and forecast charts.
Compare modeled marketing scenarios with channel constraints and experimental validation.
Explore international macroeconomic datasets and projection vintages
AI-powered crop growth and yield prediction for indoor farming
Personal account forecasts with recurring series and budget progress markers
French personal-account overview with categorized income and expenses
Personal envelope budgets with forward account-balance views
Personal budgets with scheduled-balance forecasts and separate household logins
UK mountain-area weather forecasts
Accounting-linked forecasts and management reports
Indian bank accounts with iMobile payments, account records and request tracking
Business checking with invoices and automatic reserves for upcoming costs
Philippine digital savings with named goals and a separate wallet balance
Singapore app banking with flexible savings and fixed-term Boost Pockets
Trace crypto balances and unmatched transactions before preparing reports
Singapore accounts with bonus tracking, currency exchange and Money Lock
Philippine eSavings accounts, transfers and bills in the Metrobank app
Follow TON transaction messages, fees and account balance changes
Manage EVM accounts and inspect expected balance changes before signing
Philippine banking with recurring bills, payment history and digital account applications
Bank checkout with payment status, refunds and merchant balance controls
Indian account banking with mobile payments and separate transaction authentication