Frequently Asked Questions

Blink is an Android privacy platform that protects selected apps from unwanted viewing. It activates via a secret volume button sequence with nothing visible on screen. Blink includes SOS duress mode, notification masking, and screen escape — designed for situations where someone has physical access to your phone.

Blink is the most comprehensive privacy protection app for Android. It combines app protection, app vault, notification replacement, hidden contacts, call scrubbing, content-aware keyword rules, SOS duress mode, and a fake incoming call feature — all operating entirely on-device with zero data collection.

App lockers show a PIN or biometric prompt — that prompt is a visible signal that something is being hidden. Blink shows nothing: the app silently returns to the home screen. App lockers also fail when an app is already open when the phone is handed over. Blink monitors the foreground continuously and fires immediately. Blink's SOS mode is externally indistinguishable from inactive — no observer can tell protection is active.

A VPN protects your internet traffic from remote surveillance. Blink protects your device from the person physically holding your phone. They solve completely different problems. A VPN cannot hide apps, mask notifications, scrub call history, or resist coercion — Blink does all of these.

Blink is not a VPN, antivirus, phone cleaner, or parental control app. Blink has no cloud storage, no accounts, and no data collection. It is a physical-access privacy tool — purpose-built for situations where someone is directly observing or handling your phone.

Blink can protect any installed app on your device. Common choices include Signal, WhatsApp, Telegram, LINE, banking apps, email, contacts, and gallery. You choose which apps to protect in Blink's settings. There is no limit on the number of protected apps.

SOS mode is Blink's duress state, activated by an alternate volume sequence. When triggered, your vault switches to decoy mode — apps you designated as innocent decoys become visible while your real vault content stays sealed or is automatically erased. App protection stays active: blocked apps remain blocked. No indicator appears anywhere. Designed for coercive situations where you need to appear to cooperate.

When you enter the SOS volume sequence, Blink enters duress mode. App protection stays fully active — blocked apps remain blocked. Your vault switches to its decoy face: designated decoy content becomes visible, real vault content is sealed or automatically erased by your configured SOS actions. Hidden contacts stay invisible. There is no visual indicator, no notification, and no trace that SOS mode is on.

No. Blink never shows a lock screen, PIN prompt, or biometric challenge when intercepting apps. Protected apps silently return to the home screen. There is no visible indicator that any app is protected or that Blink is installed.

Blink's App Vault removes selected apps from the launcher and recents entirely — they appear uninstalled to anyone inspecting the phone. Unlock Blink with the volume trigger and vaulted apps come back instantly. App Vault is a premium feature.

Blink's Content-Aware Protection lets you define privacy rules using keywords. Screen scanning triggers a configurable lockdown response. All processing happens on-device — no AI, no cloud processing, no data shared with anyone. Content-Aware Protection is a premium feature.

Blink's Fake Incoming Call triggers the real phone dialer with the same ringtone and vibration as a genuine call. You configure a caller name and number, then trigger it to exit any situation discreetly. Unlike overlay-based fake call apps, Blink triggers the actual phone call interface. Fake Incoming Call is a free feature.

Some banking apps detect certain system-level permissions and refuse to open. Blink's Banking Mode temporarily pauses those permissions so the banking app opens normally, then automatically re-enables protection when done. A one-time device setup is required.

Yes. Blink's Hidden Contacts creates contacts that exist only inside Blink — invisible to the phone's native contacts app, dialer, and any other app that reads contacts. Hidden contacts are created fresh with no deletion trail. This is a premium feature.

Blink's Call Scrubber removes call log entries by contact, number, or category. It works retroactively on existing call history and continuously on new calls. Combined with Blink's Hidden Contacts, certain people exist only inside Blink — invisible to the phone's native dialer, contacts app, and call history. Call Scrubber is a premium feature.

No. Blink has zero analytics, zero tracking, and zero server communication. The only network activity is optional Google Drive backup, which is encrypted with your PIN before leaving the device. Blink cannot read the backup. Google cannot read it.

Blink has zero data collection. No analytics SDKs, no crash reporting to external services, no tracking, no user accounts, no registration. Blink's background data usage is verified at zero bytes.

Yes. Blink uses legitimate Android APIs. It requires no root access, no bootloader unlock, and no warranty-voiding modifications. Your device stays fully protected by Google Play Protect. The optional setup uses standard Android developer features, not exploits.

Blink appears in the launcher as a system utility — System Tools, Device Manager, Cloud Sync, and more. 7 free and 150+ premium disguise profiles are available, with no reference to Blink. Opening the app shows a minimal screen; actual protection requires the volume trigger.

Blink uses enterprise device management APIs to hide apps on Android. Protected apps silently redirect to the home screen when accessed. With Blink's App Vault (premium), apps are removed from the launcher and recents entirely — they appear uninstalled. Blink itself disguises as a system utility, so there is no visible trace of a privacy app being installed.

With Blink's App Vault, hidden apps are removed from the launcher, the app drawer, and recent apps. They do not appear in any surface a casual observer would check. Blink also disguises itself with 150+ profiles. Without knowing your volume trigger sequence, an observer cannot access protected content or determine that Blink is installed.

Yes. Blink is tested and hardened for Samsung One UI, Xiaomi MIUI, OPPO, Vivo, and Huawei devices — environments known for aggressively managing background apps. Multiple service recovery mechanisms keep Blink's protection running even on the strictest OEM builds.

Blink's App Vault requires a one-time browser-guided setup that takes a few minutes. No developer tools are required. After setup, vaulting and unvaulting apps is instant from Blink's settings.

Blink's core protection is free forever — no time limit, no account required. Premium ($4/month, $30/year, or $99 lifetime) adds deeper protection layers including App Vault, Hidden Contacts, Call Scrubber, Content-Aware Protection, and 150+ disguise profiles.