Read this thread http://discuss.cocos2d-x.org/t/is-ccuserdefault-secure/1907

Good news. So basically this is the right way to store sensitive data BUT encryption is a need in this case. Am I right (please just say I don’t need to use anything such as soom.la or sqlite and I can just stick to userdefault!!!)

Here is a good discussion on encryption inside Cocos2d-x http://discuss.cocos2d-x.org/t/suggest-good-encrypting-decrypting-algorithms/17671/17 

Thank you, I really need to look this up.

And what is your personal opinion about storing datas like game currency values, etc.? What method would you use?

Online would always be the best but then the user would have to be connected to the internet or atleast have a single connection when the game loads up.

Generally store it in UserDefault but just encrypt it.

Thanks! 

Your welcome :D