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DU Apps Studio, founded in 2012 by Zhang Lei, creates innovative state of the art apps for smarter Android devices and more fun user experience. Our apps are led by the DU Battery Saver, the world’s leading battery saving app that is in the top 10 apps of all time* in the productivity category and counts over 10,000,000 daily active users.

Our products include:

DU Battery Saver
- World’s leading battery saving app that extends your Android device’s battery life by up to 50%!

DU Speed Booster
- Our newest and the most powerful app that speeds up your Android device up to 60%!

DU Flashlight
- The brightest and easiest LED flashlight you will ever use!

Duappsʼs apps

  • DU Battery Saver丨Power Doctor

    DU Battery Saver, the world’s leading battery saver and Android power doctor & manager, is a FREE battery saving app that makes your battery last longer! Get up to 50% more battery (...)

    • Google Play: (5,694,874)
    • AndroidPIT users: 8 👍  4 👎
    • Price: FREE