Do a release compile. This should build a .apk file.
In solution manager right click the droid project and select archive. This will build a new archive.
Follow the process for an ad-hoc .apk creation (starts from clicking distribute on the archive mgr page). This makes it so google will be satisfied with the certs in the apk.
Note: You will need the cert password at the end of this process.
zip align the generated apk file.
A batch file for this exists at: C:\VSProj\ImageImprov\ImageImprov\ImageImprov.Droid\bin\ForUpload
Login to the playstore developer console
Goto manage releases.
Upload the .apk file.
Note: There is a way to use the archive manager to upload directly to google. I have not been able to get it to work.
For Apple:
Certs needed:
A developer or distribution person
An app id cert
Provisioning
Build a .ipa file. This requires configuring the build properties in the ad-hoc build.
Copy the .ipa file to the Mac
It lives in C:\VSProj\ImageImprov\ImageImprov.iOS\bin\iPhone\Ad-Hoc
Use Application Loader to send the .ipa file to iTunes Connect.
In iTunes connect, set the testers and submit info.
For Android:
For Apple: