Stripe Dashboard for iPhone - Track and manage payments on the go

Anytime Collect - Anytime Collect is an automated accounts receivable credit and collections software.

Nomod - Accept card payments on your phone, anytime, anywhere

Invoiced - Invoiced is simple invoicing for freelancers and small businesses.

Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.

Bill.com - Bill.com provides ACH payments processing, automates your accounts payable and accounts receivable processes.