Musuq is a sales, inventory and electronic invoicing system for Peruvian businesses. Charge in two taps, update stock automatically and issue SUNAT-valid receipts and invoices from the same sale. Record purchases from a photo of your supplier's invoice, scan barcodes to fill your catalog, control your cash and send receipts by WhatsApp. It works from your phone or computer, with no hardware to buy. Plans: Free, Pro and Enterprise.