Disavow Instant Messenger

Disavow

Meet Once | Chat Forever | Disavow Everything

With its patent-pending technology, Disavow is the world's most secure and anonymous instant messenger. Metadata-free, Disavow provides you with the speed of centralized networks while keeping your social graph solely in the palm of your hand.

Welcome to the future of digital messaging. In this world there are no phone numbers, usernames, accounts, profiles, passwords, email addresses, or static identifiers of any kind. On Disavow, you are a moving target trackable only by those you've personally met.

Disavow is built specifically for those who wish to communicate knowing that their contact information:

• Can only be given out by them to those they've personally met.
• Can never be guessed or intercepted by anyone else.
• Can be destroyed end-to-end at any time.
• Can never be used to indicate who they know, what they've shared, or even that a conversation occurred at all.

Providing end-to-end data destruction with the press of a button, Disavow is the only app that gives you extreme ownership of your digital footprint. Because there are no server-side associations between you and your confidants, you can walk away without a trace and disavow all knowledge that the conversation ever occurred.

With its revolutionary architecture, Disavow achieves all of this without hiding behind legally dubious networks or compromising your identity. Disavow's servers facilitate delivery without ever knowing who is talking to whom. Once you use Disavow, you will never look at how we communicate the same way ever again.

How it Works:

Disavow is a lightweight instant messenger built to give you exactly what you need and none of the things you don't. It works just like an authentication app, where two devices use a shared seed to calculate the same values at the same interval, over and over again. Disavow is built on three core mechanisms:

• Explicit Trust: Contacts are added exclusively through an in-person, digital handshake. There is no search bar or user directory, meaning you are completely invisible to the network. Every message you receive is mathematically guaranteed to come from the specific person you performed a handshake with.

• Pairwise Rotating Addresses: There are no phone numbers, usernames, accounts, profiles, or static identifiers of any kind. Disavow uses daily-changing inbox addresses derived from the shared seed exchanged during your initial handshake. Disavow's servers route messages to these temporary addresses but have no way of knowing who they belong to or who is talking to whom.

• Blind Licensing: We use “blind licensing” to collect a monthly subscription without knowing anything about you. When you subscribe, your app receives an anonymous purchase token from Google, which your app then forwards to our licensing server along with a sealed license request generated by your device. Our server then cryptographically stamps your license request after independently verifying the purchase token with Google. Your device then unseals your stamped license and uses it to register your daily inboxes. This flow allows us to know you are real (preventing spam) and that you paid without knowing anything about you.

Disavow also gives you the unique ability to unilaterally destroy a conversation end-to-end. The namesake "Disavow" feature lets you swipe left on any contact to instantly erase all message history, encryption keys, and shared seeds from both your device and theirs. Before releasing device memory, it is overwritten with garbage data, leaving absolutely no trace that the conversation ever occurred.