Hiding private photos and videos on Android in 2026 has three legitimate paths: a built-in OS feature (Samsung Secure Folder, Pixel Folder), a dedicated end-to-end-encrypted app (Cryptee, Proton Drive), or a local-encryption gallery app (Aegis Gallery, Material Gallery). The “secret photo vault” apps that defined the category in 2015-2020 have largely been replaced by these stronger options.
This guide covers the three legitimate paths, the trade-offs of each, and a clear note on why the old-school “decoy app” hiders (Calculator Vault, Smart Hide Calculator) are weaker than the built-in alternatives.
A reasonable approach: Samsung Secure Folder if you have a Galaxy, Pixel Folder if you have a Pixel, or Proton Drive for cross-device encrypted storage. All three are stronger than the historic secret-vault apps.
TL;DR
Best fit: For Galaxy: Samsung Secure Folder is the built-in answer. Hardware-backed encryption, biometric unlock, completely sandboxed from the main user space.
Good alternative: For Pixel and other Android: a combination of Google Photos Locked Folder for casual hiding and Proton Drive for end-to-end-encrypted cross-device sync.
Skip if: You are trying to hide photos from a romantic partner or family member with access to your phone; consider whether the relationship is the actual problem. The technical fixes are not a substitute for the underlying issue.
Option 1: Built-in OS features
Samsung Secure Folder (Galaxy phones since 2017) is the strongest built-in option. It creates a completely sandboxed user space on the device with its own app drawer, its own files, its own encryption keys backed by the device’s hardware Secure Element. Apps installed inside Secure Folder cannot see anything outside it; apps outside cannot see anything inside.
Pixel Folder (Pixel phones since Android 14) is the Google equivalent, less feature-rich than Samsung Secure Folder but with the same core sandboxing model. Photos stored inside Pixel Folder are invisible to apps outside.
Google Photos Locked Folder (available on all Android phones with Google Photos) is the simplest option. Photos in the Locked Folder do not appear in the main library, do not back up to Google Photos cloud, and require biometric authentication to view. Less secure than Secure Folder but useful for casual hiding.
Option 2: End-to-end-encrypted cloud apps
Proton Drive (from the Proton Mail company) offers end-to-end-encrypted cloud storage for photos and files. The encryption keys are derived from your password and never leave your device; Proton cannot read your files even if compelled. The free tier offers 5 GB; paid tiers up to 500 GB.
Cryptee is the privacy-first photo and document vault. End-to-end encryption, free tier with 100 MB, and a paid tier up to 2 TB. Less polished than Proton Drive but with a stronger zero-knowledge architecture.
Internxt is the newer entrant with a similar model: end-to-end encryption, generous free tier (10 GB), competitive paid tiers. The trade-off is that the user base is smaller, so the long-term company sustainability is less proven than Proton’s.
Option 3: Local-encryption gallery apps
Aegis Gallery (open-source, F-Droid) is the privacy-focused gallery app with optional encryption. Local-only by design; no cloud sync. Useful for users who want a private gallery on the device only.
Material Gallery is a clean gallery app with hidden-folder support. Less encryption-focused than Aegis but with a cleaner UI.
Folder Lock and similar apps are the long-tail of the category. Most are ad-supported, less-trusted than the open-source options, and offer similar features. The longer the app’s history of clean privacy disclosures, the more trustworthy.
Why the old-school “decoy app” hiders are weaker
The category of apps that disguise themselves as calculators or other utilities (Calculator Vault, Smart Hide Calculator, AppLock) was popular in 2015-2020. The decoy disguise is theatrical but the underlying encryption is often weak, and the photos are stored in places another app or a USB transfer can access.
Modern Android privacy is much stronger. Built-in features like Samsung Secure Folder, Google Photos Locked Folder, and Pixel Folder provide proper sandboxing and hardware-backed encryption. End-to-end-encrypted cloud apps add cross-device sync.
The decoy-app pattern is also vulnerable to anyone who knows what to look for. A long-press on a calculator app revealing a real photo vault is not a security feature; it is a hiding-in-plain-sight feature that fails against an adversary with any technical curiosity.
Quick take
Built-in OS features (Samsung Secure Folder, Pixel Folder, Google Photos Locked Folder) are stronger than the third-party secret-vault apps that defined the category historically.
For cross-device sync, end-to-end-encrypted cloud apps (Proton Drive, Cryptee, Internxt) are the right modern answer.
At a glance
| Method | Encryption | Cross-device | Best for |
|---|---|---|---|
| Samsung Secure Folder | Hardware-backed | Single device | Galaxy users |
| Pixel Folder | Hardware-backed | Single device | Pixel users |
| Google Photos Locked Folder | Device-level | Single device | Casual hiding |
| Proton Drive | End-to-end | Yes | Privacy + sync |
| Cryptee | End-to-end zero-knowledge | Yes | Maximum privacy |
| Aegis Gallery | Local encryption | No | Open-source on-device |
| Decoy calculator app | Often weak | No | Not recommended |
The setup, step by step
Step 1: Identify which Android phone you have
Galaxy: Samsung Secure Folder is your built-in answer. Pixel: Pixel Folder and Google Photos Locked Folder. Other OEM: Google Photos Locked Folder, and consider an end-to-end-encrypted cloud app.
Step 2: Enable the built-in feature
Galaxy: Settings, Security and privacy, Secure Folder, setup. Pixel: Settings, Security and privacy, Private Space (the Android 15+ name for Pixel Folder). Google Photos Locked Folder is in the Photos app under the Utilities tab.
Step 3: Move existing private photos into the secure container
In Google Photos, long-press a photo, three-dot menu, Move to Locked Folder. In Samsung Secure Folder, open the Gallery inside Secure Folder and import. In Proton Drive, upload from the app.
Step 4: Set up biometric authentication
Use fingerprint or face unlock plus a separate strong PIN for the secure container. The PIN should be different from your main phone unlock PIN.
Step 5: Test the recovery flow
Confirm you know how to recover if you forget the PIN: Samsung Secure Folder is recoverable via Samsung account; Google Photos Locked Folder is recoverable via Google account. Cloud-based options recover via the service provider.
FAQ
Are the photos in Samsung Secure Folder truly hidden?
Yes. Secure Folder uses hardware-backed encryption keys and is a separate Android user space. Apps outside Secure Folder cannot see anything inside it. A USB connection to a PC only exposes the main user data, not Secure Folder content.
What if I lose my phone?
Secure Folder content cannot be accessed without the device’s decryption keys, which are tied to the device’s hardware. A thief cannot read your hidden photos. Wipe the phone remotely via Samsung Find or Google Find My Device for total peace of mind.
Can I share photos from Secure Folder?
You can share them out individually (the file is decrypted when you send it). Mass-sharing is intentionally awkward to prevent accidental leaks.
Is Google Photos Locked Folder as secure as Samsung Secure Folder?
Slightly less. Google Photos Locked Folder is device-level encrypted but does not have the full sandboxed user-space model that Secure Folder has. For most threats this is fine; for advanced concerns, Secure Folder is stronger.
What about hiding photos from cloud backup?
Google Photos Locked Folder photos do not back up to cloud. Samsung Secure Folder content also does not back up unless you explicitly enable Secure Folder Cloud Backup. Both options keep your hidden content off the cloud by default.
What about the safer way to hide videos specifically?
The same options apply. Samsung Secure Folder, Pixel Folder, and Google Photos Locked Folder all support video. For end-to-end-encrypted video sync, Proton Drive is the best option. See the editor’s broader guide to safely hiding photos and videos on Android in 2026.
The verdict
Hiding photos on Android in 2026 is much better than it was in 2018. The built-in OS features (Samsung Secure Folder, Pixel Folder, Google Photos Locked Folder) are strong; the end-to-end-encrypted cloud options (Proton Drive, Cryptee) are even stronger for users who need cross-device sync.
The old-school “decoy calculator” apps are the weakest category. The disguise is theatrical, the encryption is often weak, and the practical security is below the modern alternatives. Skip them.
For most users on a Galaxy or Pixel, the built-in feature is the right answer. For users who need cross-device privacy or who want maximum encryption strength, Proton Drive is the best paid option. Either way, the modern setup is stronger than the 2018-era category that this guide replaces.
How we put this guide together
We tested Samsung Secure Folder on a Galaxy S24, Pixel Folder on a Pixel 8a, Google Photos Locked Folder across both, and Proton Drive and Cryptee on multiple devices in April 2026. Encryption-strength evaluation is based on each platform’s published security documentation. The dismissal of decoy-app hiders is based on multiple independent security analyses of the category from 2020-2024.
