Record udhaar & payments, get your money back faster with WhatsApp reminders, collect instantly via UPI, and bill customers — all from your phone. Free to start.
From udhaar khata to GST invoices — replace your paper bahi with a smart, secure digital ledger.
Add customers & suppliers, record "You Gave / You Got" with notes & bill photos. Running balance auto-calculated.
Send polite payment reminders in one tap. Bulk-remind every customer who owes you — get paid faster.
Generate a UPI QR for any balance. Customer scans, pays, and the ledger settles automatically.
Create professional tax invoices with CGST/SGST, print or share as PDF on WhatsApp.
Track daily cash in & out by category. Know your real cash position every single day.
Day book, monthly summary, party statements, profit & loss — plus Excel & GST exports.
Login with your mobile number & OTP. No paperwork.
Create your parties and record opening balances.
Note every credit & payment as it happens.
Send reminders, collect on UPI, watch dues drop.
"Pehle copy mein likhta tha, ab sab phone mein. WhatsApp reminder se paisa jaldi wapas aata hai."
"UPI QR feature kamaal ka hai. Customer turant pay kar deta hai aur entry apne aap ho jaati hai."
"GST invoice aur reports ek hi app mein. Mera accountant ka kaam aadha ho gaya."
Join 10,000+ businesses managing their udhaar, payments & billing with LenDenBook. Free to download, free to start.