Security Privacy apps for Android
194 apps
Security Privacy apps on Android are distributed the same way everything else is: through the Play Store, through developers' own release pages, and through a long tail of mirrors that may or may not be handing you what they claim. This page collects the security privacy apps we have been able to trace back to a named publisher, with the official store link first wherever one exists.
The useful question before installing any security privacy app is not whether the app is popular, it is whether the copy in front of you is the one the developer built. Start from the official listing if there is one. If you are installing an APK instead, check that the SHA-256 hash matches what the publisher published, and check the signing certificate fingerprint against earlier releases of the same app. Then read the permission list and ask whether each entry has an obvious reason to exist given what the app actually does.
Everything below has been traced to a publisher we can name. Where the app is on an official storefront, that link sits at the top of the listing and we do not try to outrank it — the store copy has the shortest chain of custody available. Where we host or mirror a build instead, the listing carries its SHA-256 hash, the signing certificate fingerprint, the version code, and the full permission list, so the file can be checked before it is installed rather than trusted after.
Before you install security privacy apps
Is it safe to install security privacy apps from an APK file?
The common failure is a repackaged build: a real security privacy app, rebuilt by someone else with an addition you did not agree to, published under the same name and icon. It cannot be spotted by looking at it, because it is the real app plus something. It can be spotted by the signing certificate, because the attacker does not have the publisher's private key.
Which permissions should a security privacy app actually need?
There is no single correct list for security privacy apps — it depends on what the app does. The test that travels well is whether you can explain each permission from the feature list alone. If an app requests contacts, SMS, call logs, or accessibility services and you cannot point to the feature that needs them, that gap is the finding. Permissions that arrive in an update, for features you never asked for, deserve the same scrutiny.
How do I check a security privacy APK is genuine before I install it?
Two checks, both on the listing page. Hash the file you downloaded with SHA-256 and compare it to the hash we published — if one byte differs, the whole hash differs. Then compare the signing certificate fingerprint to the publisher's earlier releases. Android enforces that match itself: it will refuse an update signed with a different key than the version already installed, which is why a matching fingerprint is meaningful evidence and a matching version number is not.