Invoice By Alto Apps
We've just released our easy invoicing app for freelancers and small businesses. With this we have integrated many apps to make creating invoices and getting paid easy.
Stripe, Square Cash & Paypal lets you accept credit cards, debit cards & paypal payment right on the invoice page sent to the client. Dropbox, Github, and Photos integration let you reference files, receipts, images, code commits, github issues right in your invoice & estimates. Last but not least, Slack integration allows you to keep in check with your team.