IOS 7 is or will be a "must have"
I play... learn languages with Duolingo and I use a lot the wonderful Duolingo IPhone app.
About the new Appel OS, IOS7, Do I have to install it today ? Should I install it today ? Will I have to install it in the future ? Will you advise us to install IOS7 to an optimal use in the future ?
Thanks for your answer