Free, cross-platform and offline-first invoicing solution that syncs.
Slimvoice - Insanely simple invoicing
Invoice At Once - Easy Invoice creation.
Envoice - Send invoices and get paid on Paypal, Payoneer, Stripe and Square.
Simple Invoices - Never Wait For Clients To Pay You Again!
Zoho Invoice - 100% free online invoicing software for small businesses.
Invoice.to - A simple & beautiful invoice generator with Stripe & Paypal