Bastion Security

Bastion Security is a compact Android toolkit that helps you manage privacy, reclaim storage, and control app access. Use quick or full device checks to review storage and installed apps, find similar or duplicate files, compress images to save space, and review app permissions so you can decide what to keep or remove.

Additional utilities include a notification filter to mute unwanted alerts and an app access lock that secures selected apps with a PIN or pattern. Some features require optional permissions (for example, notification access or usage access); you can enable or disable them at any time. Bastion Security focuses on practical device organization and transparency—no network-level blocking and no claims to detect or remove harmful content.