Simple, powerful, and offline-first apps designed for the real needs of shop owners and small businesses everywhere.
What We've Built
Built for small businesses. Simple to use. Works offline.
A fast, offline billing app for tea shops, hotels, bakeries, mess and local stores. Replace your paper billing notebook with a smart digital billing system.
We are building more apps for small businesses. Our next release will continue the same promise — fast, simple, and offline first.
We are a small independent team building apps for small businesses worldwide. Our goal is simple — create tools that are fast, reliable, and work even without internet.
Every app we build is designed for real shop owners who need speed, simplicity, and reliability — not complexity.
From tea shops and bakeries to local stores — BillKadai is built for every kind of small business.
Get In Touch
Have a question or need support for BillKadai? We typically respond within 24 hours.
BillKadai is a fast, offline billing app designed for small businesses. Create bills in seconds, accept digital payments, track daily sales, and manage your shop — all from your phone. No internet required.
Create bills in under 5 seconds. Tap items and generate instantly.
Works without Wi-Fi or mobile data. Even during power cuts.
Auto-generate UPI QR on every bill. Customers scan and pay instantly.
Inclusive and exclusive GST calculation on every invoice.
Daily, weekly and monthly reports. Cash vs UPI breakdown.
Automatic backup. Restore data on any phone anytime.
Add staff with PIN access. Control permissions per employee.
Share bills via WhatsApp, SMS or any app instantly.
Free to download. No subscription. No hidden charges.
Download on Google Play