LensVerge is billing and shop management software for optical shops in India. It creates GST invoices (a Tax Invoice with CGST and SGST or IGST, or a Bill of Supply for composition shops) with HSN codes and current rates preset, prints on thermal or A4/A5 paper, and sends bills on WhatsApp. Stock covers frames with photos and barcode labels, spectacle lenses in a SPH/CYL power grid, and contact lenses by power, axis and pack size. Prescriptions, lab orders, repairs, supplier bills, WhatsApp and web appointment booking, a recall list, loyalty points and GST reports with a GSTR-1 export are included. It runs in the browser, keeps billing when the internet drops, has staff roles and multiple branches, and starts at Rs 499 a month with a 14-day free trial.