Hi fellow hackers,
I've built bubblegram.co because I needed a chat widget for my side projects and I didn't want to overpay for a full-fledged support tool. I already use Telegram, so I just wired support into that.
Spent most of the time on handling Telegram's rate limits properly, securing the API, making sure it's reliable and backed-up. Wanted one thing that's simple on the surface, but solid underneath.
Now when someone messages my site, it lands as a topic in my Telegram group and I reply from my phone like any other chat.
Feel free to try, and message me if you have questions or just say hi :)
The interesting distinction isn't between calendars, apps, and bots—it's between remembering a payment and avoiding a cash-flow mistake. I'd keep validating whether users are buying reminders or confidence that upcoming obligations won't create surprises. That's a much stronger positioning than competing on notification features alone.