Offline-first business management for small businesses
Invoicing, quotations, stock, cash register, and reports for small businesses — built to run entirely on your own machine, with a 15-day free trial and no card required to start.
Everything a small business runs on, in one app
Invoicing & payments
Create invoices, record payments by method, and see exactly what's still outstanding — always, not just at month-end.
Customers
One place for every customer's contact and business details, with their full invoice and payment history attached.
Quotations
Send quotes, track acceptance, and convert an accepted quote straight into an invoice — no re-typing.
Products, services & stock
A shared catalog for everything you sell, with optional stock tracking for physical items.
Cash register & vouchers
Track daily cash in and out, and log expenses by category with payment vouchers.
Reports
Sales, collections, outstanding balances, payments by method, expenses, and your top products — for any date range.
Offline-first
WatCoreLite runs as a real Windows desktop app. Your day-to-day work doesn't need an internet connection.
Your data stays yours
Everything is stored locally in your own database on your machine — not on someone else's server. Export a full backup any time.
Modular by design
Turn on only the modules your business needs. A service business can skip Stock; a retail shop can turn on Products & Stock.
Pricing
Start with a full 15-day free trial — just tell us a bit about your business to get the download, no card required. After that, WatCoreLite is a straightforward subscription.
Plus applicable tax. Licensing goes live shortly — for now, sign up to download and start your free trial.