App crashed because I wont update OS

App worked fine until the March 29th update requiring IOS 8.0. Problem is that if I were to update the OS, iPhone has this troubling history of draining batter life to force you to upgrade. Would I rather get the app and spend another several hundred on a new phone, OR experience a minor inconvenience by logging in through safari? Yeah, the latter, please.

Libertaritom about Facebook, v165.0