Sparkmail went from an incredible app to the slowest, most unreliable, constantly crashing app of all time. I can't go more than two days without the app freezing on me. It blows my mind how the development team took such a wrong turn. Stay away from Spark. It's upsetting to say this because I used to love Spark. But their latest version basically ignores the most basic and critical aspect of a good app: performance. If I have to wait 2 seconds for an email to open up then you're failing miserably.
