If you have an Apple developer account you can resign the ipa created by Visionaire Studio 4 (Visionaire Studio 5 doesn't support it yet) with a developer certificate and a provisioning profile created in the apple developer console. I used EasyResigny
to do this. When done you can install the ipa using the 'Devices' window in XCode. Here you select your device and use the + icon under 'Installed apps' and upload your resigned ipa.
I noticed that the ipa created by visionaire by default only targets tablets, but this can be bypassed by editing the info.plist inside the Visionaire.app file. To do this rename the exported .ipa to .zip, extract, rightclick the Visionaire Player.app, 'show package contents'. Now you see the Info.plist file, open this file and add a value to UIDevice family, I believe this is integer 1 but just open it in XCode this will recognize the values. You'll have to do this before resigning the app.