Meizu M2 note DU battery saver and booster

Hello there,

On my Meizu M2 note i have preinstalled DU Battery saver and DU Speed booster. Are these apps good and helping phone or not? Should i delete them or not? Each of these app is eating 4% of battery so i don’t know it is saving battery or draining faster…

Thanks for answers.

Not worth to install them. Flyme security app is doing well so why installing third party crap?

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