Survives a device search
Vaults you haven’t opened are stored as identical encrypted blocks, with no stored list or count. “Show us the rest” has no answer, because nothing in the app points to anything more.
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. They are encrypted with AES-256, and nothing on the device points to them.
How do journalists protect sources on a phone?
Keep as little as possible, encrypt what remains, and make the rest hidden. Sealby encrypts notes and files on your device with AES-256 and keeps them in vaults with no index and no stored count. An inspected or copied device gives an inspector nothing more to ask for, 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.
Recovery on your terms
Each vault has its own recovery phrase. Keep it with a lawyer, split it, or memorize it. Material can be restored after a seizure without any backdoor existing.
Common questions
What does a device inspection actually turn up?
The installed app and, if you open one, whichever vault you chose to reveal. There is no vault list, no stored count of hidden vaults, and vaults you haven’t opened are stored as identical encrypted blocks.
Is this a replacement for secure messaging?
No. Sealby works alongside it. Messaging protects data while it travels. Sealby protects what builds up on the device: notes, documents, recordings and contact material.
Related: Deniability internals · Border crossings · Forced-unlock explainer
Your vault is waiting.
Download Sealby and protect what matters. Setup takes under a minute, and there’s no account to create.
Download on the App Store
iPhone & iPad · iOS 17+ · Free