All Trei apps
Billing
BillSetu
GST billing, invoices, stock, and payments that keep working offline.
BillSetu helps small businesses manage parties, items, invoices, payments, expenses, reminders, stock, and sync status from one local-first app.
What BillSetu does
- GST billing and invoices
- payments, expenses, reminders, and reports
- items, parties, stock, and trade documents
- offline local cache and pending sync
- settings for feedback, privacy, terms, ads, and Premium
- Premium removes ads only
Common questions
Is BillSetu free?
Yes. Billing features stay available on the free tier. No billing feature is gated behind Premium; Premium removes ads.
What is the app id?
Android and iOS use dev.trei.billsetu.
How do I send feedback?
Use trei.dev/feedback with the BillSetu app context.