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The app is very usefull, but for me it has been impossible to contact the support. I tried email, twitter and the form in the website. Noone never answered to me. I bought the license for the app lock feature, but it doesn't work as expected, ok, maybe it will be improved in the near future, but noone knows. After buying the license my hope was that now, someone will answer but nothing. So I asked for a refund, but surprise surprise, noone answered. It could be the best app for this kind of purpose, but if there is no feedback from the developers, how can it improve in the future? I would like just an answer from the developer, just a "hey, I read your message and this is what we are doing to improve the app" to make me satisfied of the purchase...