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Secure Folder and App Locker
Lock any app behind a calculator nobody thinks twice about
Lock WhatsApp, your gallery, banking and any other app behind a fingerprint or PIN. Move private photos into an encrypted vault with its own viewer. Then disguise the whole thing as a working calculator, so nobody knows the vault is there. Free, offline, no account.
I built this after noticing my own habit: handing my unlocked phone to someone to show them one photo, then hovering awkwardly while they held it.
App lockers already exist. Two things bothered me about them. First, a padlock icon on your home screen tells everyone you have something to hide, so this one can disguise itself as a calculator that actually calculates. Type your PIN, press equals, and the vault opens. Anyone else just does sums. Second, most of them are vague about what they collect, so: your PIN, your locked app list and your settings never leave the device, the PIN is stored with PBKDF2 rather than plain text, and biometrics are handled entirely by Android's BiometricPrompt so the app never sees them.
Honest about what it is not: this is a phone privacy tool, not disk encryption. If someone has your unlocked phone and your PIN, it will not save you.
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About Secure Folder and App Locker on Product Hunt
“Lock any app behind a calculator nobody thinks twice about”
Secure Folder and App Locker was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #100 on the daily leaderboard. Lock WhatsApp, your gallery, banking and any other app behind a fingerprint or PIN. Move private photos into an encrypted vault with its own viewer. Then disguise the whole thing as a working calculator, so nobody knows the vault is there. Free, offline, no account.
Secure Folder and App Locker was featured in Android (57.4k followers) and Privacy (11.3k followers) on Product Hunt. Together, these topics include over 53.3k products, making this a competitive space to launch in.
Who hunted Secure Folder and App Locker?
Secure Folder and App Locker was hunted by Muhammad Azhar. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Muhammad Azhar