Manual

Invites and the personal invite video

How an invite works

Open your circle and tap Invite someone new (under Manage circle). SafePhrase creates a private, single-use link and opens your share sheet so you can send it by message or email. When the person taps it, the app opens and walks them through joining.

The link carries the secret needed to join in a form our servers can never read. Invites are single use and expire on their own, so an old link found later is worthless.

The personal invite video

Before the share sheet opens, SafePhrase offers to record a personal invite: a few seconds of your face and voice. You’ll see a suggested script, something like:

“Hi Mum, it’s me. I’m inviting you to my SafePhrase circle. My check words are: marble, falcon.”

Those two check words belong to that invite alone. They’re derived on your phone from the invite’s own secret, so our servers never know them, and the person you invite sees the same two words printed under your video. If the words spoken match the words on their screen, the video was made for that exact invite, not copied from somewhere else.

The video is sealed inside the invite. Only the person you send it to can watch it, and once the invite is used or expires, it’s gone.

Recording one is recommended, never required. Skipping it still sends a normal, fully working invite.

What it proves, and what it doesn’t

A matching video proves the invite really came from the person whose face and voice you recognise, and that it was made for you. It is not absolute proof on its own: video can be faked with enough effort. That’s why the app also shows the receiving-side rule below, and why joining is followed by verification in both directions.

Receiving an invite? The golden rule

Only join circles you were expecting, from people you know. If an invite surprises you, stop and call the sender on a number you already have before joining. The app repeats this warning right above the Join button, on purpose. A genuine inviter will never mind you checking; that’s the whole point of SafePhrase.