Your subscribers shouldn't need to download an app.

Most people who share a schedule aren't trying to build a communication system. They just want people to know when to show up. Somewhere between the spreadsheet and the group text, it became a job. Every time something changes, the chain starts over. You update. You post. You follow up. You answer texts.

You publish once. Anyone who wants it subscribes in one tap, and it lives in whatever calendar they already carry. Apple. Google. Outlook. When you change something, it shows up there. No push required. No announcement. The communication happens on its own.

Every group ends up with someone who carries the schedule. They send the reminders. They forward the updates. They answer the texts. That was never supposed to be a job. OnThree removes the need for it.

The work is done when you close the tab.

For the people on your list, there's nothing to figure out after that first tap. The schedule just exists, where they look, when they need it. If practice moves, they see it. If a game gets cancelled, it disappears. The dad in the parking lot knows where to be. The grandparent who doesn't download apps is covered. The new family that just joined has it from day one.

We built OnThree around a simple belief: coordination is a form of care. The best tool for sharing a schedule is one nobody has to think about. Not the person running it, and not the people depending on it.