Best Photo Vault Apps for iPhone (2026): An Honest Comparison

The criteria that separate vault apps

Five things actually differ between these apps. Everything else is interface taste.

• Storage model — on-device only, or synced to the developer's cloud. Cloud sync survives a lost phone; on-device means there is no server to breach and no account to subpoena.
• Decoy vault — a second PIN showing fake content for forced-unlock situations.
• Intruder alerts — silent photos of wrong-PIN attempts.
• Disguise — whether the app hides itself (icon swap, or posing as a working calculator).
• Account & price — whether you must create an account, and what the subscription actually gates.

Apple's Hidden album — the free baseline

Built into every iPhone, free, and fine for hiding photos from casual scrolling. It locks with Face ID since iOS 16. But it's a documented feature in a fixed location, it syncs through iCloud, it opens with the same Face ID as everything else, and it has no decoy or attempt log. If your snoop is 'whoever borrows my phone,' start here. If your snoop has a name, keep reading — the full breakdown is in our Hidden album guide.

Keepsafe — the cloud-backup veteran

One of the oldest and most downloaded vaults, built around an account with cloud backup: your photos can survive a lost or broken phone, and a premium subscription unlocks the full feature set. That's the trade in both directions — recovery if you lose the device, and your photos existing on someone else's servers, protected by an account. If cloud backup of hidden photos is a feature for you rather than a bug, it's the established choice.

Private Photo Vault — the established all-rounder

A long-standing App Store staple with a large review base, break-in alerts, decoy album support, and optional cloud backup. It's the closest feature-for-feature comparison to ours, with the storage question left to you as an option rather than a stance. A reasonable default if you want a big track record and don't mind the app steering you toward its premium tier.

Calculator vaults — the working-decoy trick

A whole category of apps (Calculator+, Calculator# and others) poses as a functioning calculator: the app genuinely calculates until you type a secret code. It's a clever disguise — arguably the best pure camouflage there is — and worth knowing that Secure Folder's stealth icons don't replicate it: our disguised icon still opens to a lock screen. The category's usual weak spots are the other direction: everyone has heard of calculator vaults by now, and quality varies wildly across the dozens of near-identical apps, so vet the specific one's privacy policy carefully.

Secure Folder — ours, and who it's for

Secure Folder takes a position on the storage axis instead of offering both: everything stays on your iPhone. No account, no cloud, no server — the privacy policy is short because there's little to disclose. On top of that sit the three situational features: nine disguise icons, a decoy vault with its own fake PIN, and silent intruder alerts with timestamped photos. The honest trade-offs: no cloud backup means you keep your own backups of anything irreplaceable, and intruder alerts, unlimited imports, and widgets require the Pro upgrade (subscription or one-time lifetime purchase). The free tier includes the vault, decoy, and stealth icons.

The verdict, by situation

• Casual privacy, zero effort → Apple's Hidden album. Free and already on your phone.
• You want hidden photos backed up in the cloud → Keepsafe, or Private Photo Vault with backup enabled.
• You want a big track record and every feature as an option → Private Photo Vault.
• You want maximum camouflage above all → a well-reviewed calculator vault, after reading its privacy policy.
• You want photos that never leave your phone, plus a decoy and an intruder log → Secure Folder.