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TSRMS Official Applications

Due Book · Digital Khata App

Digital Khata & Due Management App for Indian Shop Owners. Maintain customer and supplier ledgers digitally, set payment reminders, calculate cash with note denominations, and backup your data securely.

Due Book official logo

Due Book

Free Download

Package: com.tsr.duebook

Official Web Appduebook.tsrms.in

Manage customer and supplier dues, record transactions, set payment reminders, calculate cash with note denominations, and stay organized.

Digital Khata for both customer receivables & supplier payables
Overdue payment reminders with 1-tap WhatsApp and direct call
Cash calculator with note denominations & daily cash history snapshots
Instant business reports with downloadable PDF customer statements
Offline-first — works seamlessly without internet connection
Encrypted backup — AES-256-GCM local backup & Google Drive sync
Offline-First (Works without internet)AES-256-GCM EncryptedGoogle Drive Backup