Google Calendar won for good reasons: everyone has it, invitations work across companies, and it is free and reliable. Nothing here suggests you should stop using it. What it does not do is understand you — it is a grid that stores what you put in it. HAL’s calendar is smaller and it is conversational: you say what is happening and it lands, next to reminders that came from your inbox.
| Google Calendar | HAL | |
|---|---|---|
| Inviting other people | The standard. It just works, everywhere | Receives invitations by mail and answers them, and sends standard ones. Google is still the safer bet for a team |
| Creating an event | A form, or quick-add | Say it in a sentence, including "move it to Thursday" |
| Sharing a calendar | Mature: permissions, multiple calendars, delegation | Not there |
| Reminders and events together | Separate things, loosely joined | One place, same product |
| Knowing why an event exists | The description field | The email and the note that produced it are in the same product |
| Before a meeting | A notification | A brief about 15 minutes before: who is coming and your last mail with each, plus notes you can record into |
| Reliability at scale | Enormous and battle-tested | A much younger product |
Written from each product’s public documentation. These are good, mature tools and this page says where they are still better. No prices here: they change on their own and the page would end up lying without anyone touching it.
Probably not, and this page is not going to tell you to. Invitations and shared calendars are the reason it won, and HAL does not replace them.
For the part of your week that is yours: things you tell it in a sentence, and reminders that came out of an email or a conversation with it.
Yes — you describe it and HAL creates it, including moving it later.
Yes, there is a public link for an event with a map and an add-to-calendar button.
Connections exist for calendar, notes and monitoring. It also reads and answers invitations that reach your gethal.com inbox. What it does not do is replace Google’s shared calendars.
It works from the city you have set, and you can change it by asking.
Invitations at company scale, shared and delegated calendars, room and resource booking, and decades of reliability.