Apptivo is the perfect small business suite for google apps. Apptivo has CRM, Project Management, Invoicing, Timesheets and more.
Apptivo's business suite consists of 40+ apps that are integrated and seamlessly work with each other. The information is shared across apps, so data once created can be used everywhere improving overall productivity. There is also no need of multiple data entry avoiding duplicate or incorrect data.

Online Payment Gateways
Setup payment gateways through PayPal, Authorize.net, or Zipmark. It's quick and easy to start collecting payments through Apptivo. Payments can be viewed in payments tab against each invoice or from Receivables app.

Recurring Billing Software
Create reliable recurring income with subscription billing via Authorize.net and PayPal. Simply select the invoice frequency and duration and Apptivo handles the rest!

Custom PDF Invoice Templates
A simple drag-and-drop invoice template builder to generate professional PDF invoices to send to your customers. Choose your own fields, upload a business logo, and much more.

Mobile Invoicing App
Take invoicing on the go with you. Invoice your clients on site straight from your Android or iPhone / iOs device.

Reports
Generate commission reports for your employees or run a general report on all the invoices for a select period of time. Users can export the generated reports.