About Tilly

About Tilly.

Tilly is a private AI chief of staff that unifies your calendars, tasks, and daily brief. This page explains what the product does, who builds it, and the principles it is held to.

What Tilly is

Tilly reads the calendars that can claim your time, keeps your tasks beside them, and turns both into one plan you can act on. It runs on iPhone and in the browser, and the two surfaces show the same schedule.

One schedule, many accounts

Connect Google Calendar, Outlook and Microsoft 365, iCloud, CalDAV, and subscribed ICS feeds. Every event stays in the calendar that owns it; Tilly only brings them into one view.

Tasks next to the day

Tasks live beside the calendar rather than in a separate app, so the work you still owe is visible against the time you actually have.

A brief, not a feed

The daily brief summarizes what is ahead, what conflicts, and where the open time is. It is a short read before the day starts, not a stream to monitor.

Booking without a second tool

Booking links draw on the same connected calendars, so the availability you share matches the availability you have.

How Tilly is built

Calendar data describes where you go, who you meet, and what you are working on. Tilly treats that sensitivity as a product constraint rather than a policy paragraph.

You approve every change

Tilly’s assistant can read your schedule and propose a change, but a consequential calendar or task write pauses for explicit approval before it runs. Nothing is rearranged behind your back.

Grounded in your own data

Assistant answers are drawn from the signed-in account’s own calendars, tasks, and settings. Availability is calculated from your real schedule rather than guessed.

Scoped provider access

Each calendar connection is a separate account you can review or remove. Disconnecting an account in Tilly does not delete anything the provider stores.

The free plan shows the problem

Free covers the daily views, tasks, basic reminders, and conflict visibility across two connected accounts. Pro adds unlimited accounts, AI-assisted recommendations, protected focus time, and the advanced brief.

Who builds Tilly

Tilly is built by Theo Denanyoh, its founder, working on the calendar problem that came from juggling separate work and personal schedules. Product decisions, releases, and support all run through the same small team, which is why the changelog and status pages are written in plain language rather than marketing summaries.

If something in the product is wrong, the fastest route is support@trytilly.com. Service problems are published on the status page, and shipped fixes appear in the changelog.

Common questions about Tilly

What is Tilly?

Tilly is a private AI chief of staff that unifies your calendars, tasks, and daily brief. It connects the accounts that hold your commitments, shows them as one schedule on iPhone and the web, and highlights conflicts and open time so the next decision is obvious.

Which calendars can Tilly connect to?

Google Calendar, Outlook and Microsoft 365, iCloud, CalDAV servers, and subscribed ICS feeds. You choose which individual calendars appear, and hiding one in Tilly never deletes it from the provider.

Is Tilly free?

Yes. Tilly Free includes the daily and calendar views, tasks, basic reminders, and conflict visibility across two connected provider accounts. Tilly Pro adds unlimited accounts, AI-assisted planning, protected focus time, and the advanced morning brief.

Does Tilly change my calendar on its own?

No. Tilly can suggest a change, but a consequential calendar or task write waits for your explicit approval. Recurring-event rules, billing, and account reconnection are always handed back to the relevant screen rather than automated.

Who makes Tilly?

Tilly is made by its founder, Theo Denanyoh. Support, releases, and published service advisories all come from the trytilly.com domain.