Adobe Pro 2017 or DC

I need to be able to have clients complete a survey offline on an iPad and then have it submit it once the iPad is on WiFi. All the chat people are telling me it's possible with DC, but I can only find Send for Signature. I am not emailing the form. I want them to be able to use the saved form on the iPad over and over. I already have Pro 2017 and can't figure out if that work since I already purchased it. I have dropbox, one drive and google drive, but it looks like it will only work with Sharepoint unless I purchase DC. Thanks!