Catch up in one message.
Your messages, email and calendar, answered in one place.
Your world. One conversation.
Your chats, apps, phone and PC, with an AI that can work across all of them.
- Telegram
- Gmail
- Calendar
- Slack
- Notion
- Drive
- GitHub
- Linear
- Todoist
- and 500+ more
One conversation that can do the work.
It reads everything you connected.
Ask one question across your chats, inbox, calendar and files, and get an answer with its sources.
What needs my attention before the launch?
- Searching your Telegram chats
- Checking your calendar
Three things.
Alex is waiting for your go-ahead in the launch group.
The design review is at 11:00. The files are in Drive.
Your afternoon is clear.
The app
Hear about it when it happens.
A watch brings you the update and the message it came from.
Start the day with a brief.
Everything that happened overnight, with what needs you first.
A small shape with a lot inside.
Voice mode
Talk hands-free. It answers out loud while it writes, and the triangle moves with both voices. Drag it down to read along.
One search
Conversations, Telegram, email, files and the web.
A real browser
It reads pages, fills in forms, clicks through sites, downloads files and takes screenshots. Watch it live, or take over whenever you like.
Make things
Images, speech, sound effects, music and video from a description.
Your PC
Triangle Companion for Windows lets it move the mouse, type, open apps and reach the folders you share. You can watch and take over live.
Set up Triangle CompanionA whole Telegram client
Chats, channels, folders, files, stickers and voice notes, with your own account.
Morning and night briefs
What happened across your chats, with what needs you first.
Reminders and routines
“Every weekday at 9, catch me up.” One-off or repeating.
Memory
It remembers your preferences and the people you mention, across chats.
Content Canvas
A home for links, emails, files and saved messages.
Your phone
Find a text, set a timer, check your battery or call someone.
Cloud and code
Cloudflare, E2B sandboxes, MCP servers and skills.
Things to watch, read and hear
Search YouTube, X, books, films, shows and music, with results you can open right there.
Home-screen widgets
Ask for a widget in your own words, and it builds one for your home screen.
And the rest: 493 tools in all.
See every toolTriangle Companion, for your PC.
A small Windows app that connects your phone to your PC. See and use your screen by touch, or let the assistant find files, click, type and run commands. Nothing is on until you switch it on.
Set it up and connect.
Nothing extra to install, but the phone must be on the same Wi-Fi as the PC, and the traffic isn’t encrypted. Use it only on your own network.
Download and run it
Extract the whole folder and run triangle_companion from inside it. If Windows says it protected your PC, click More info, then Run anyway.
Pick Home Wi-Fi
Choose Home Wi-Fi at the top of the window. If Windows asks about network access, allow it on private networks. If you missed that, click Allow next to Windows Firewall.
Choose what it can do
Under Shared folders, click Add and pick the folders your phone may see. Then switch on See the screen to view the PC, and Control mouse & keyboard to use it.
Add your PC to Triangle
On your phone, go to Settings → MCP & Skills → MCP servers → Add by address. Name it pc and paste the address. Scanning the QR code in the companion with your camera or Google Lens is the easiest way to copy it.
Connect
Open the drawer in Triangle and tap PC screen to see your screen, or ask the assistant something like “What’s in my Documents folder?”
Using the screen by touch
- Tap to click, and tap twice to double-click
- Long-press to right-click, then move to drag
- One finger to scroll, and two to zoom and pan
- Keyboard button to type, with Esc, Tab, arrows and shortcuts
What you switch on
- Shared folders, and whether each can be changed
- See the screen
- Control mouse & keyboard
- Clipboard, Run commands, and Apps & system
If it won’t connect
- No PC found: check the companion is running, the phone is on the same network, and your Wi-Fi is set to Private in Windows
- The PC refused: See the screen is off, or the companion is paused
- Touches do nothing: switch on Control mouse & keyboard
Nothing goes out until you say so.
You approve it first
Sends and changes wait for your OK, and you can edit them before they go.
Your keys stay on your phone
Bring your own AI provider and pick your own models.
You set the limits
Turn tools on one at a time, or switch everything to read-only.
Telegram, to Launch team
Send this reply?
The designs look great. Let’s ship on Friday. Thanks, everyone!
This is a demo, so nothing is really sent.
Set up in three steps.
-
Install it
Download the Android APK from the latest GitHub release.
-
Add your keys
Add an AI provider key and connect your apps. Telegram can wait until you’re ready.
-
Ask something
Try “Catch me up on my day.”
Questions.
What is Triangle?
An AI workspace for Android that connects your conversations, apps and everyday tools. It includes a full Telegram client, an assistant that works across connected services, creative tools, briefs and watches.
Is it free?
You can download Triangle from GitHub. You bring your own AI provider key, and that provider bills you for what you use. Optional services such as web search, connected apps, voice generation and cloud sandboxes may need their own keys or paid accounts.
Do I need a Telegram account?
No. You can start with AI chat, connected apps, cloud tools and your phone, then connect Telegram later in Settings → Apps & web.
Which AI models can I use?
You choose your own chat, image and audio models in Settings. Providers include Vercel AI Gateway, OpenRouter and Google AI Studio. What’s available depends on the provider and keys you add.
What happens to my data?
Your API keys are stored on your device. When you use an AI model or a connected service, the information needed for that request goes to that provider. You choose which tools the assistant can use, and sending or changing things asks for your approval by default.
Can Triangle use my computer?
Yes, on Windows, with Triangle Companion running on your PC and your phone connected over Tailscale or home Wi-Fi. Each ability has its own switch on the PC: shared folders, seeing the screen, mouse and keyboard, the clipboard, commands, and apps and system. Changes can be set to ask for your OK on the PC first. Set up Triangle Companion
How do I install it?
Open the GitHub releases page, download the APK for your Android device and install it. Android may ask you to allow installs from your browser or file manager. Then open Triangle, add an AI provider key and connect the apps you want.
Bring it all together.
Triangle is for Android. Triangle Companion lets it use your Windows PC.
Read the source