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Privacy, explained plainly.
No fear-mongering, no jargon walls — just how this stuff actually works, including the limits. The same honesty we apply to our own product.
Can you be forced to unlock your phone?
Passcodes vs biometrics, borders vs ordinary stops, compelled-decryption laws — the landscape in plain English, and how deniability changes it.
Read the explainerWhat is a deniable vault?
Encryption hides what data says; deniability hides that it exists. How plausible-deniability storage works, its history, and its honest limits.
Read the explainerZero-knowledge encryption, explained.
What the most reassuring phrase in privacy really promises, the recovery-path test that exposes pretenders, and what is stronger still.
Read the explainerHow to hide photos on an iPhone — every method, honestly compared
Hidden album, locked notes, vault apps — what each method actually protects against, and where each leaks.
Read the explainerHow to hide videos on an iPhone — and the traps photos don’t have
Videos add size, thumbnail and preview traps on top of everything photos have. What works and what leaks.
Read the explainerWhat photo metadata reveals about you
Location, timestamps, device details — what EXIF data rides along with every photo, what strips it, and what it means for privacy.
Read the explainerPhone searches at the border: what travellers should understand
Borders give agents broader device-search powers in many countries. How searches work and how travellers prepare — without drama.
Read the explainerWhat is a duress PIN — and when does it make sense?
A code that looks like a normal unlock but destroys or conceals data instead. How panic codes work, and their trade-offs.
Read the explainerPhoto vault apps: seven red flags before you trust one
Ads, accounts, "PIN recovery" emails, missing encryption details — how to tell a real vault from a PIN screen over a folder.
Read the explainerHow private are your iCloud photos, really?
What syncs by default, what Apple can access, what Advanced Data Protection changes — and what shared devices reveal.
Read the explainerHidden album vs encrypted vault: the difference that matters
Hiding changes display; encryption changes readability. Why that distinction decides what survives real scrutiny.
Read the explainerEncrypted notes on an iPhone: locked Notes vs real encrypted storage
Locked Apple Notes genuinely encrypt — with visible titles, clumsy attachments and sync caveats. When they are enough and when not.
Read the explainerDigital legacy: passing on private files without giving up privacy now
How the right person reaches your files one day, without anyone having access now: recovery phrases, sealed envelopes, and traps.
Read the explainerYour vault is waiting.
Download Sealby and lock down what matters — in under a minute, with no account to create.
iPhone & iPad · iOS 17+ · Free