You no longer need a jailbroken iPhone to install IPA files. Apple allows via developer tools and signing services. Here are three proven methods.
Remember: preserve the game, but respect the developers. If Rovio ever re-releases Angry Birds Epic legitimately, support them by buying it. angry birds epic ipa file
An .IPA file is a compressed package adhering to the ZIP file format. Extracting a legacy copy of Angry Birds Epic reveals a standard directory hierarchy essential for the application's runtime environment. You no longer need a jailbroken iPhone to install IPA files
Simpler than AltStore for one-off installs. Cons: Same 7-day expiration. No auto-refresh. angry birds epic ipa file