Why I Built a Web App for Callie

When I started building Callie, I wanted it to live in the messaging app my family already used. WhatsApp was the obvious choice. So was iMessage. But neither lets developers build bots that can actually do things. Telegram does. So Telegram it was.

The problem showed up fast. I'd tell people about Callie and they'd say some version of not wanting to use Telegram. Friction. And friction kills products.

So I built a web app.

No download. No new account. Thirty seconds.

Here's what surprised me: it's actually better in some ways. You go to app.meetcallie.ai, sign in with Google, and you're talking to Callie in under a minute. No download. No new account. Nothing to install. If you have a Google account, which every family using Google Calendar already does, you're ready.

Add it to your home screen on iPhone or Android and it opens like a native app. Full screen, no browser bar. It feels like something you installed even though you didn't.

The part I didn't expect

Dictation works beautifully. Just tap the microphone on your phone's keyboard and speak. "Dentist Thursday at 3pm" works just as well spoken as typed. For busy parents who are already in the car or making dinner, that's not a small thing.

The honest tradeoff

Telegram is still great for families who want morning digests and proactive reminders pushed to them. The web app is pull, not push. You open it when you need it. For some families that's the right fit. For others, the daily digest is the whole point.

But if the barrier was that nobody in your house wanted to download another app, that barrier is gone.

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