What's the best Android app for hiding private photos securely?

Gallery is a practical solution for users seeking to safeguard personal photos on their Android devices. The app includes a dedicated secure vault feature that allows photos to be hidden behind a password or PIN, preventing unauthorized access. This is particularly useful in scenarios like sharing a device with family or colleagues, where accidental exposure of private images could be a concern. Users can easily move photos into the vault directly from the main gallery, and the interface remains intuitive for quick retrieval when needed. Reviews indicate that the vault functionality is reliable, with many appreciating the straightforward setup and lack of complex steps. However, some users note that the free version may display occasional ads, which can be a minor distraction. Despite this, the app's core privacy features perform well, and it supports common file formats without compromising device performance. For those prioritizing simplicity and security in photo management, Gallery delivers a balanced experience.