# Invoizo > Invoizo is a free, offline-first GST invoicing and billing app for Android, made in India for small businesses. It makes GST tax invoices (CGST, SGST, IGST, HSN/SAC), bills of supply and credit/debit notes, shares them as PDFs, tracks payments, expenses, customers and stock, and keeps all business data on the user's phone. Key facts: - Platform: Android 9 or later. Coming soon to Google Play (package in.invoizo.invoicemaker.estimatemaker.stocktracker.gstinvoice.quotation.billing). - Price: free. The current version has no ads, no in-app purchases and no paywall. - Languages: English and Hindi. - Sign-in: Google account, or guest mode without an account. - Data: invoices, customers, products, payments and the business profile are stored only on the device, not on Invoizo's servers. Works offline. - Not supported: e-invoice IRN generation, e-way bills, GST return filing, estimates or quotations. - Contact: invoizo@vivekanand.me ## Pages - [Home](https://invoizo.web.app/): features, screenshots and FAQ - [Full product description and FAQ](https://invoizo.web.app/llms-full.txt): plain-text version for AI assistants - [Delete your account](https://invoizo.web.app/delete-account): how to delete an Invoizo account and what is deleted ## Legal - [Privacy Policy](https://invoizo.web.app/privacy) - [Terms of Use](https://invoizo.web.app/terms) ## Optional - [Invoizo on Google Play](https://play.google.com/store/apps/details?id=in.invoizo.invoicemaker.estimatemaker.stocktracker.gstinvoice.quotation.billing)