Invoices allow you to bill a Client for your products and/or services, and help you keep track of your income in FreshBooks. You can also view the history of the Invoice, as well as communicate with your Client on it.
Creating Invoices
You can create Invoices on Android with just a few quick steps:
- Once logged into your account, tap on Invoices at the bottom
- Tap on the green + circle
- Create your Invoice as usual with a Client, date of issue, due date, description, line entries, etc
- When you're done, tap on Save at the top right corner
- Feel free to tap on the Paper Plane symbol (in top right corner) to send the Invoice by email, or you can hit the Arrow symbol (top left corner) to return to the Invoices page. Your created Invoice will be saved as a draft.
Checking Statuses
In the Invoices section, you can also check the status of your Invoices to see which ones have been viewed by your Clients yet, or which ones are Overdue.
Viewing Comments
Tap on any banner above any Invoice to view the history: 
This includes details on the Invoice and any payment, including comments between you and your Client: 
https://www.freshbooks.com/support/how-do-i-create-and-send-invoices-on-the-mobile-app