Very nice looking, kind of iffy with uses. – ShareCal - Easy Calendar Event Sharing via Email, iMessage and AirDrop Review

It feels like you're paying $5 for a near replica of the normal calendar. I think I'll just stick with the default calendar app. If more features were added and the price was reduced to maybe $2.99 this might be worth it but as it is there's no reason to buy it.
Review by Zak Sidhu on ShareCal - Easy Calendar Event Sharing via Email, iMessage and AirDrop.