Free, cross-platform and offline-first invoicing solution that syncs.
Bill.com - Bill.com provides ACH payments processing, automates your accounts payable and accounts receivable processes.
Slimvoice - Insanely simple invoicing
Zoho Invoice - 100% free online invoicing software for small businesses.
Envoice - Send invoices and get paid on Paypal, Payoneer, Stripe and Square.
Wise - Currency exchange Banks and other providers could charge you up to 5% in hidden costs when sending ...
ChargeDesk - ChargeDesk offers billing support across most of the payment service providers.