Questions about CrizaVoise

CrizaVoise is a free, open-source desktop app for making invoices and bills. It creates GST-ready PDF invoices, quotations, receipts and credit or debit notes, prints thermal receipts, and tracks customers, products, stock, payments and suppliers. It runs on Windows, Linux and macOS and is made by Criza Labs (criza.dev).

Yes. There is no price, trial, subscription, licence key or advertising. The code is open source under the Apache License 2.0, so businesses can also use it commercially.

Criza Labs (criza.dev), a founder-led software and AI development team in Gujarat, India, run by AbrarAli S. and AkbarAli N. CrizaVoise started from the MIT-licensed Invoiso project and was rebuilt and extended by Criza Labs.

Criza Labs builds websites, apps and AI automation for businesses. CrizaVoise is a useful tool we give away, and it shows the kind of software we make. If you need a custom version, you can hire us, but you never need to.

Yes, completely. It needs no internet connection and makes no network calls. Your data is stored in a local SQLite database on your own computer.

Yes. Invoices can show your GSTIN and your customer's, HSN or SAC codes, per-item or overall tax, and a UPI QR code. CrizaVoise does not connect to the government e-invoice portal, so businesses that must issue e-invoices (IRN) need to do that separately. See the GST invoice guide.

Yes. The Thermal template fits 58 mm and 80 mm paper. You can print over USB or the network to ESC/POS printers, or through the normal print dialog. See the printer guide.

Yes. Share on WhatsApp saves the PDF, opens the customer's chat with a ready message that includes your UPI ID, and shows you the last steps. Unpaid invoices also get a ready payment reminder. See how it works.

English, Hindi, Gujarati, Spanish, French, Nepali, Chinese and Tibetan. Hindi and Gujarati text also prints correctly in PDFs.

Yes, on the same computer. Add admin and standard users, each with a password and an optional quick PIN. Staff can be kept from seeing purchase prices and profit. CrizaVoise does not sync between computers.

Yes. Each company has its own separate database, and you can switch between them.

On your own computer. On Windows it is in %APPDATA%\Criza Labs\CrizaVoise. On Linux it is in ~/.local/share/dev.criza.crizavoise, and on macOS in ~/Library/Application Support/dev.criza.crizavoise. Nobody else, including Criza Labs, can see it.

Open Settings, then Backup, and choose Create DB Backup or Export JSON. Copy the file to a USB drive or another safe place. See the backup guide.

The installers are not code-signed yet, which costs money every year. The warning does not mean the app is harmful, and the source code is public. On Windows, choose More info, then Run anyway. On macOS, use Open Anyway in Privacy & Security.

Uninstalling removes the app but keeps your business data, so you can reinstall without losing anything. Delete the data folder yourself only if you are sure.

Yes, under the Apache License 2.0. Keep the LICENSE and NOTICE files, credit "Based on CrizaVoise by Criza Labs (https://criza.dev)" in your README and About screen, and give your version its own name and logo. See open source.

Yes. Criza Labs builds custom software, including custom features and white-label versions of CrizaVoise. Write to connect@criza.dev or use the contact page on criza.dev.

Open an issue on GitHub, or email contact@criza.dev. In the app, Settings, About, Support fills in your app version for you.