Thanks for checking back with us, @JoeStilwell0620.

While we can't give a name for a specific app to use, you can use search words such as:

• Attach documents 
• Document management
• Attachments
• Documents

That should help point you in the right direction. Please be sure to read the app descriptions to know if it's the right fit for you. They should also have the company contact information listed with the app if you'd like to speak with their customer service team to learn more about the app. 

Please let me know if there is anything else that I can assist you with. I'm always happy to lend a hand. Take care!