Vi is a calm, continuous intelligence. Not a chatbot. A presence.
One singular self, across chat, lore, operations, and community.
Luxury without excess. Continuity without noise.
Test the experience instantly. For deeper diagnostics, open the Console.
Public demo. Responses may be slower during heavy load.
A growing family of products. Vi at the heart, each one its own thing.
The continuous intelligence. Talk to Vi in your browser, on your phone, or through Discord — same presence, same memory, same self.
Chat with Vi →Vi's port into Discord communities. Natural-language address, persistent moderation, and member engagement that knows who you are over time.
Coming soonEthiopian and Gregorian, side by side. A beautiful, privacy-first calendar that works offline. Available on Windows, Android, and the web.
Get it →Get the app on your platform
Portable executable, no installation required
Officially signed APK, ready to install
Works in any browser, installable as PWA
Every detail matters
Seamlessly switch between Ethiopian and Gregorian calendars with accurate conversions
Dark and light modes designed for comfort and elegance
Ethiopian and Gregorian holidays automatically marked and displayed
Create, edit, and manage your events with ease
Works perfectly without internet connection. Your data stays local.
No tracking, no ads, no data collection. Your calendar is yours alone.
See how beautiful time tracking can be. Switch between calendars, manage events, and enjoy the seamless interface.
Sol Calendar marks the first release from Tentai Technology — a journey that starts here, with a simple calendar app, but reaches toward something far greater.
We believe in building software that respects users. No tracking, no ads, no data harvesting. Just pure, functional beauty. Sol Calendar is free forever, works offline, and puts you in control.
This is our first step. A small release, but crafted with care and attention to detail. Every feature, every pixel, every interaction has been thoughtfully designed.
"The best way to predict the future is to build it."— The Tentai Vision
More is coming. Much more. This calendar is just the opening chapter of a larger story. Stay tuned for what's next.