Fiscal cash register · ESIR
A browser-based fiscal cash register for Serbia
Otkucaj, our own ESIR app: a cash register in the browser that issues Serbian fiscal receipts, with an API, a WooCommerce plugin and documentation, in Serbian, English and Russian.
otkucaj.com is a product, not a client site. The register runs in the browser and handles advance receipts, refunds, reports and every payment method, imports items from a spreadsheet, installs as an app and keeps working offline.
It works with both kinds of fiscal processor, online and local, and connects to other systems through a REST API and a WooCommerce plugin. The public site carries a user manual and a guide blog, in Serbian Latin and Cyrillic, English and Russian.
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Tell us what you are building and roughly when you need it. We reply to every real enquiry within a day. Based in Belgrade, working remotely across the EU and beyond.