t@ngo · a quantum-safe alt-net for your people
Private messaging for your real-life network.
Tango is a quantum-safe alt-net that works like private messaging between you and the people you actually know. It's built for real conversation, group plans, events, and looking out for each other.
- TALK
- PLAN
- GATHER
- CARE
▸ THE APP, IN FIVE SCREENS · SWIPE
Who's up, right now
Private chat
One-tap signals
Group plans that land
Events from your people
01 / talk
A chat that's only a chat.
Remember tin-can telephones? One string, two people, nobody listening in. Tango is that, with better range.
- DMs and group threads with people you've met in person.
- No feed underneath. No ads between messages. No "suggested for you."
- Messages vanish by default, like a conversation should.
02 / signal
Twelve signals. Zero essays.
Instead of texting nine people one by one, put up a flag. Your people get a nudge; whoever's in, is in. Tap one:
Signals fade on their own. No "seen by 14." We're not building a new way to feel bad.
03 / plan
Group plans that actually happen.
Forty-one messages, zero dinner. We've all been in that chat. A Tango squad is a blanket fort with a map on the floor: small, cozy, and pointed at one thing.
- Squads for the trip, the team, the Sunday crew.
- Quick polls for the when and the where.
- A pinned "who's bringing what," so the tent shows up.
04 / gather ROLLING OUT
Events, passed hand to hand.
The best invites never came from an algorithm. They came from a friend going "you should come to this." Tango makes that a paper airplane.
- Share a link, ticket or calendar invite; it becomes a card your people can say I'm in to.
- See which friends are going before you decide.
- Plays nice with the calendars and event apps you already use.
- Hand any plan off to the group chat you already have.
Imports happen on your phone. Tango never sees your calendar.
05 / care
The hardest text to send is "I'm not okay."
When you're at the bottom of a rough stretch, reaching out feels like handing someone your mess. So you don't. And they'd have shown up in a heartbeat. They just didn't know.
CHECK ON ME is one tap. It sits right next to COFFEE and HIKE, on purpose, and needs no explanation. Your people get a quiet nudge, and somebody says hi.
- No words required. Add some if you want.
- You pick who sees it: everyone, your inner circle, or three specific humans.
- It isn't a post. Nothing to like, nothing that lingers.
Tango is a way to reach your friends, not an emergency service. If you or someone you know is in danger, call your local emergency number. In the US you can call or text 988 any time.
06 / alt-net
Its own little internet. Locked like a vault.
Tango doesn't need a company in the middle. Phones pass sealed messages to each other, like flashlight signals between treehouses.
- Quantum-safe encryption. Built on post-quantum cryptography, the kind designed to stay locked even against tomorrow's quantum computers.
- Works off the grid. Bluetooth and Wi-Fi mesh between nearby phones; the internet is a backup, not a requirement.
- No account. No email, no phone number. Your identity is a key that lives on your phone.
- No server holding your stuff. Nothing to leak, subpoena, or train a model on.
- no ads
- no algorithm
- no follower counts
- no strangers
Straight talk: Tango is in active development. This is how it's being built, and the code will be open so people who know crypto can check our homework.
compare in person to verify
07 / scenarios
Stuff this is actually for.
Free and slightly feral. Signal up. Two friends bite. Plans by 6:25.
DRINKSYou know three people. They know thirty. Saturday suddenly has a crew.
HIKEDates, drivers, tent. Settled in one squad instead of four apps.
PLANJo can't use it. A friend-of-a-friend can. Nobody posts it publicly.
EVENTKid's at practice. Who's nearby, without making it A Whole Thing?
COFFEEYou don't need conversation. You need a human typing in the same room.
CO-WORKYou've gone quiet and nobody's noticed. You don't have the words. You don't need them.
CHECK ON MESixty thousand people, no service. Your crew still finds each other.
OFF-GRID08 / how it works
Four steps. One of them is a handshake.
Meet
Scan each other's phones in person. That's the whole sign-up.
Signal
Say what you're up for, or share a plan or an event.
Nudge
Your people get a notification, not a feed. They tap I'm in, or let it float by.
Go
A private thread opens for whoever said yes. Make the plan. Do the thing.
09 / faq
Fair questions.
How is this different from a group chat?
Group chats are great once the plan exists. Tango is for the part before that: finding out who's around and up for it, without spamming everyone, and for the people you'd never think to text.
What does "quantum-safe" mean?
Most encryption today could, in theory, be cracked by a powerful enough quantum computer someday. Tango's design uses post-quantum cryptography, built to resist that. It's the same approach Signal adopted. It's part of the core we're building now.
Who can see my signals?
Only people you've added in person and, if you allow it, the friends they vouch for. You choose per signal. There is no public anything.
Is this a dating app?
No. It's for people you already know and the people they'd vouch for. If sparks fly on a hike, that's between you and the trail.
Where are the ads?
There aren't any, and there won't be. We'd rather charge a few bucks someday than sell your attention.
When can I get it?
iPhone first; Android after. It's a working prototype today. Early testers get in the way everything here works: through a friend. Ask whoever sent you this page.