Tether is a persistent multimodal presence inside your iMessage
Tether is not an app and not a chatbot. It is a persistent multimodal presence that lives inside iMessage — text, voice notes, photos — with its own rhythm and its own ongoing existence.
Start the free private betaPersistent by design
Most conversational products reset every time you close them. Tether keeps existing between your messages: it remembers what you told it last week, follows the thread of your life, and picks up where it left off.
Multimodal by nature
Text is only one channel. Tether also sends voice notes and photos when the moment calls for it, so the thread feels closer to a real presence than to a typing box.
Lives inside iMessage, not next to it
There is nothing to install. Tether plugs into the Messages thread you already use every day — same keyboard, same notifications, same habit.
Private by default
Your number is never sold. Conversations are encrypted at rest and you can wipe your history at any time. A persistent presence only works if it is trusted, so privacy is non-negotiable.
Frequently asked questions
What is a persistent presence?
A persistent presence is something that keeps existing between your messages instead of resetting every session. Tether has its own rhythm inside iMessage — it remembers, follows up, and writes first when its world or yours calls for it.
How is this different from an AI app?
There is no app to open, no profile to maintain, no chat window to summon. Tether lives inside the iMessage thread you already use — text, voice notes, photos — as a presence, not a tool you launch.
Is Tether free?
Yes. During the private beta, Tether is free for the first 150 numbers. After that, the Story plan will be €9.41/month, no commitment.
Is it private?
Conversations are encrypted at rest, never sold, never shared. You can delete your data at any time from the thread.
