I plan to release the first level of my next game as a free demo. If someone beats it, I want them to not have to beat it again, the first time they play the full game. But if they don’t (or just buy the full version straight away), I want them to beat the first level before moving on. What is a solution?
Apple prevents this. You’ll need to talk to a web server and store your data there somehow (use the unique identifier if you want to do this silently).
…or just go old school and give them a password to enter: ‘SKIPDEMO’
I’m not sure what that means. Point me in the right direction to find out?
file://localhost/Applications/Unity%20iPhone/Unity%20iPhone.app/Contents/Documentation/Documentation/ScriptReference/iPhoneSettings-uniqueIdentifier.html
“A unique device identifier. It is guaranteed to be unique for every device (Read Only). You can use it (for example) to store high scores in a central server”
A lot of the avenues for sharing data between apps have been explored by the guys trying to make copy and paste frameworks, and as I recall all the holes they found have been closed.
It looks like the iPhone OS supports “NSGlobalDomain” for defaults. You might be able to set a key in this domain and have it read by multiple apps.