AirGap keeps your most important secrets on a phone that never connects to a network. Your everyday phone only ever carries a locked envelope it cannot open.
Would you trust the internet with that?
Or would you rather keep the keys completely offline?
A source hands over evidence that could end a career — theirs, or someone else's. The story can't leak before it's published, and the source can't be traced. The message travels as a locked envelope through an app neither of them has to trust.
Acquisition documents move between two people who've never met in person for this deal. A single leak moves markets. The Vault Phone holds the terms; the everyday phone just carries a picture neither the bank nor the inbox can read.
Confidential evidence needs to reach opposing counsel without ever sitting on a mail server. Privilege depends on it staying private. AirGap keeps the content off every server the email would normally pass through.
A wallet recovery phrase is the one string of words that must never exist on a device that's ever been online. Not in a note. Not in a photo. Not in a chat backup. The Vault Phone is the only place it's allowed to live.
Your keys and your plaintext both pass through infrastructure you don't control.
The keys never leave the two Vault Phones. Everything in between only ever sees ciphertext.
Seven steps, no technical background required. Tap a step to walk through it.
Clear claims build trust. Here's exactly what AirGap does — and doesn't — defend against.
Signal is excellent for everyday private messaging. It protects your messages while your device stays online — fast, convenient, built for constant conversation.
Every message means picking up a second phone, scanning a code, sending a photo. There's no getting around that extra step.
AirGap keeps your keys on a phone that never goes online. It is not more convenient, and it is not for every message.
For the handful of messages where a leak would actually hurt you, a few extra seconds is a fair price for keys that were never reachable over a network in the first place.
It takes more effort than normal messaging.
It's best for short messages — large files, voice notes and media are not the main use case.
Both users need a Vault Phone.
If you lose the Vault Phone, recovery must be handled carefully.
The encrypted image can remain in chat history, but it stays unreadable.
One phone protects them forever. The other just delivers the envelope.