KharchaBook is a private, offline-first Android expense tracker for Indian households. Log groceries, milk, fuel, bills, medicines, and custom expenses in seconds. Review monthly and category reports, export PDF or Excel, create local backups, and protect everything with a PIN. No account, cloud sync, ads, or tracking. To install: first join the DinaLabs Google Group, open the tester opt-in link and choose “Become a tester,” then download KharchaBook from Google Play link available in group.