Overview & Feature Analysis
A free program for Android, by ColorOS.
If you have confidential or important documents on your phone, you would want to store it in a separate space. That's because if they get mixed up with your ordinary files like photos and videos, there's a high chance that you might accidentally delete them and restoring those might not be easy.
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This app offers a great solution so you can prevent that scenario from happening. DocVault serves as a secured folder where you can put all of the documents that you can't afford to delete like a copy of your insurance policies, government papers, birth or marriage certificates, and more.
What's great about this app is that you can also open it by typing a unique password.