Survives a device search
Unrevealed vaults are indistinguishable from random data — to a person and to forensic tooling. “Show us the rest” has no answer because nothing shows there is a rest.
Use case
Protect the story. Protect the source.
A seized phone shouldn’t end a career — or endanger a source. Sealby keeps notes, contact details and material in vaults that survive inspection: encrypted with AES-256, and impossible to prove present.
How do journalists protect sources on a phone?
Minimise what exists, encrypt what remains, and make the rest deniable. Sealby encrypts notes and files on-device with AES-256 and keeps them in vaults with no index and no detectable count — so an inspected or imaged device shows nothing to compel, and opening one vault reveals only that vault.
No third party to subpoena
No account, no server, no company that holds keys. Legal pressure on a provider yields nothing because there is no provider in the loop.
Recovery on your terms
Each vault has its own recovery phrase. Keep it with counsel, split it, or memorise it — restoring material after a seizure is possible without any backdoor existing.
Common questions
What does a forensic examiner actually see?
An installed app and, if you open one, whichever vault you chose to reveal. There is no vault list, no metadata trail of hidden vaults, and unrevealed vaults are indistinguishable from unused random data.
Is this a replacement for secure messaging?
No — it complements it. Messaging protects data in motion; Sealby protects what accumulates on the device: notes, documents, recordings and contact material at rest.
Related: Deniability internals · Border crossings · Forced-unlock explainer
Your vault is waiting.
Download Sealby and lock down what matters — in under a minute, with no account to create.
Download on the App Store
iPhone & iPad · iOS 17+ · Free