"In truth" implies you have a fact to share, when in fact, it's just your opinion. Better to use "In all honesty" since you were being a bit dishonest in saying

"In truth" implies you have a fact to share, when in fact, it's just your opinion. Better to use "In all honesty" since you were being a bit dishonest in saying that "IOS7 apps are littered with this kind of stuff".