Business · POS
BillKit
Universal offline billing for petrol pumps, retail & services.
Universal offline billing app for petrol pumps, medical stores, retail and services — invoices with PDF / print / WhatsApp share, full inventory, customers, and payment tracking. Works with zero network.
- Free to download
- Offline-capable core
- Free with ads · Pro removes them
- No account needed
Why people use BillKit
Built by Zentryx — fast, private, and made to do one job exceptionally well.
4 business modes
Works fully offline
PDF + print + share
Your data stays yours
BillKit stores all of your business data — products, customers, invoices, payments — locally on your device in an embedded database. Zentryx has no access to it. The free version shows ads via Google AdMob.
- Minimal, disclosed data use
- Ads via Google AdMob
- No mandatory account
- No data is ever sold
BillKit — questions, answered
Is BillKit free?
Yes — BillKit is free to download. The free version is supported by ads, and an optional one-time/Pro upgrade removes them and unlocks extra capacity.
Does BillKit work offline?
The core features of BillKit work offline. Some features use the internet (see the privacy policy for exactly what and why), but your personal content is not uploaded unless a feature explicitly requires it.
Do I need an account to use BillKit?
No. BillKit requires no account, email, or sign-up — just install and start.
Is BillKit safe and private?
BillKit stores all of your business data — products, customers, invoices, payments — locally on your device in an embedded database. Zentryx has no access to it. The free version shows ads via Google AdMob. You can read the full BillKit privacy policy at billkit/privacy.
How do I delete my BillKit data?
Delete records from within the app, or uninstall the app to remove all locally stored data. Exported PDFs/backups you saved elsewhere remain under your control.