The Chat Control 2.0 proposal called for checking messages before they're sent.
You don't need secrets. A phone number, some photos, a family: that's enough. Naisho is the private communication tool that keeps them between you.
内緒 (naisho), Japanese for “let's keep it between us”.
Little changes for you.
You text, send photos and voice notes, make calls. Just like today. From your phone, computer or browser.
Messages travel encrypted and stay only on your devices: phones and computers. No server of ours in between: we don't have any.
No ads.
Interface prototype, with sample data.
You're probably thinking…
Another app?
For whoever gets the invite, it works like the apps they already know: texts, photos, voice notes, calls.
Can I keep the apps I already use?
Yes, until the whole group has moved over.
What about encrypted apps?
Those go through a company's servers too. Naisho doesn't: the server is yours.
Three things that won't happen to you with Naisho.
- 1
Your number can be found.In 2025 researchers at the University of Vienna showed that 3.5 billion numbers could be found on one of the most widely used apps, along with the profile photo when it was public. The flaw has been fixed.
- 2
A company decides.In 2021 a major provider shut down a father's account over a photo sent to the doctor. Though cleared, he was left without his email, photos and phone number.
- 3
A door for the good guys gets used by everyone.The Chat Control 2.0 proposal called for checking messages on the phone before they're sent. In 2024 Salt Typhoon broke into the lawful interception systems of US phone companies (CISA, FBI).
- No central directory to query. Only the group knows the group.
- No company can lock you out. The group lives on your own computer.
- No door. Not for us, not for whoever runs the group.
In July 2026 Chat Control 1.0 passed, even though 314 MEPs voted to reject it and only 276 to keep it. Source: European Parliament
You set it up, once.
- Your own computer, with Windows 10/11 or Linux and an SSD. Nobody can find it on the network.
- Switch it off at night? Messages wait until morning.
Invite message, ready to forward
I'm inviting you to our family group on Naisho: download the app and tap this link.
naisho · inviteForward
You install it. If you get stuck, write to us.
Interface prototype, with sample data.
How it works
No open door for messages: your own computer, which nobody can find on the network.
Learn moreBetween you. Nobody in between.
Your number, your photos, your words. They stay where you put them.