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Does anyone use the DUBattery Saver and DUSpeed Booster Apps?

I use both, but it doesn't really seem to do anything for me. It says it saves my battery 5 - 40 minutes, but I still have to charge my phone at the same time every night. (I have a routine).  The speed booster claims to improve the speed of my phone but I see no difference in load times or lagging on my games.