Smart AppLock

Smart AppLock helps you to add password to any app you like. Protect your privacy from prying eyes.
Even lock incoming calls, Wi-Fi toggle, Bluetooth toggle and more.
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iAppLock

iAppLock, the iOS version of Smart AppLock, is able to add password to any app you like. Also be able to lock App Uninstall, Icon Moving, Recent Tasks and a lot more.
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GalleryVault

With GalleryVault, you can keep important photos & videos in a safe place, enjoy privacy and secret elegantly, download all images in web page with one touch. We designed GalleryVault to adapt to all your needs.
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PrivateSpace

Make messages and calls between you and her in secret!
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About Us

Nanjing Daocheng Network Technology Co., Ltd.(南京道成网络科技有限公司) is a Mobile Internet technology company, founded in June 2014. We are focusing on mobile apps and games, now we have developed dozens of quality apps and provided services for more than 1 billion users from over 200 countries and regions, forming globalized super user ecosystem.