Calls that hide your address
Audio and video - one to one and in groups of up to five. Through the relay by default: your IP stays yours. Quality adapts to the channel, up to 1080p.
the bar on top says which route the voice takes
Features
A full messenger, not a proof of concept
Messages, calls, groups and several devices - and protection for when the phone ends up in someone else's hands.
What it does
A full messenger, not a proof of concept
The things used every day. Reactions, pinning, archive and labels are there too - that is the minimum, not a feature list.
Disappearing messages
From 30 seconds to four weeks. For the person who received it, the clock starts when they read it.
See you at 7
gone 30 seconds after it is read
View once
A photo, a video or a file opens once and is deleted after viewing. Both of you learn about a screenshot.
Destroyed. It will not open again
Voice, photos, files
Attachments up to 1 GB, all media of a conversation on one screen, saving to the phone library.
0:12
contract.pdf · 1.3 MB · encrypted
Send on a schedule
Written at night, sent in the morning. Alongside: drafts, editing and delete for both.
Search in a conversation
One chat or all of them at once. Plus pinning, archive and contact labels.
agreed
…and on that we agreed, details tomorrow
Statuses that are mutual
Read, delivered, typing, online - all switchable, and always both ways.
Sent the document✓✓ read 17:26
turn them off and you stop seeing others
Your own server - in development
A separate server for a team or organisation - we are building it. What companies get today - here.
tysha.company.com
your server, the same keys on the phones
Screens
What it looks like
Nine screens with no drawn-in frames and no stock hands - the same thing you will see on your own iPhone.
iPad
And on the tablet
The list on the left, the conversation on the right. The build with iPad support was submitted to the App Store on 27 September and is waiting for review.
Mac
And on the computer
The Mac app 1.0.0 has been submitted to the App Store and is waiting for review. Old history does not move across, and calls stay on the iPhone in this version.
Safety
And if the phone is in someone else's hands
Encryption does not answer that question - it is about the road, not the device. This is what answers it.
Chats behind Face ID
The storage key lives in the Secure Enclave: it is not handed over without your face or the phone passcode - not even on an unlocked phone. Plus a lock on entry, with a choice of how soon the app locks itself.
Wipe after failed attempts
Five or ten wrong codes and the phone erases the store, the files and the keys. The counter lives outside the app.
the counter lives outside the app
Text hides at a touch
Quick hiding of content - against a glance over your shoulder. In the app switcher, a cover.
Notifications without content
The server does not know the text. Name and text, name only, or nothing - your choice.
this is how it looks on the lock screen
Safety code and verification
Verified in person. If a key changes, sending stops until you verify again.
Screenshots are visible to both
The one who took it and the one who was captured both learn about it. Almost nobody else does this.
Incognito keyboard
The system keyboard does not remember what you typed in Tysha.
Get Tysha
iOS 18 or later
iPadOS 18 or later
macOS 26 or later · in App Store review
in testing · soon
in testing · soon