Fastmail Calendar vs Tilly
Fastmail Calendar
fastmail.comTilly
trytilly.comSide by side
| Figure | Fastmail Calendar | Tilly |
|---|---|---|
| Price from | $4/mo | $3.33/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | Yes |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | — |
| Plans published | 6 | 4 |
| Spec score · Calendar apps | 9.0 (#11) | 9.0 (#13) |
| Founded | 1999 | 2025 |
| Free plan | No | Yes |
| Headquarters | Melbourne, Australia | The site footer and press materials place the maker in Columbus, Ohio. |
| Security | Fastmail says data is encrypted at rest and in transit, supports two-step verification and passkeys, and offers EU or US data residency choices. | The privacy policy says calendar data is encrypted in transit and at rest and describes TLS, security assessments, access controls, and secure OAuth integrations. |
| Support | Every plan includes expert support from real people, and the pricing page says support is available 24/7. | The About page lists [email protected] as the fastest route for product issues. |
Plans
Fastmail Calendar
- Basic$4 a month
- Individual$6 a month
- Standard$6 a month
- Duo$10 a month
- Professional$10 a month
- Family$14 a month
Tilly
- FreeFree
- Tilly Pro$4.99 a month
- Tilly Pro Annual$59.99 a year
- Tilly Pro$39.99 a year
In their own words
Fastmail Calendar
Fastmail Calendar is an online calendar integrated with Fastmail email, available on web, Linux, macOS, Windows, Android and iOS. It supports two-way calendar sync and shared calendars, including business plans with sharing and administrative controls. Users can bring in calendars from Google, iCloud and elsewhere, search instantly, and organize events with drag-and-drop editing. It can show schedules in other time zones, compare emailed event updates with earlier versions, and manage calendars offline in its apps; changes sync when the device is back online. Fastmail documents calendar access through CalDAV and JMAP APIs for account data more broadly. The service is paid, has a 30-day trial and does not list a free plan. Options include Basic at $4 a month, Individual at $6 a month, Standard at $6 a month, Duo at $10 a month, Professional at $10 a month and Family at $14 a month. Longer billing terms have separately listed rates. Fastmail was founded in 1999 and is headquartered in Melbourne, Australia.
Tilly
Tilly combines calendars and tasks in a daily plan, with a brief that highlights what is coming up, conflicts, and open time. It connects Google Calendar, Outlook and Microsoft 365, iCloud, CalDAV servers, and subscribed ICS feeds. Tasks appear alongside calendar events so users can judge them against available time. Booking links use availability across connected calendars while showing guests open times, not the events behind them. Tilly checks for overlaps across visible calendars; Pro can recommend which meeting to move and which to keep. It reads calendars into one view without copying events or busy blocks between accounts. Assistant-prepared calendar or task changes wait for explicit approval. Tilly is available on iOS, macOS, and the web. The Free plan supports two calendar accounts and costs nothing. Tilly Pro costs $7.99 a month, and Tilly Pro Annual costs $59.99 a year; eligible new subscribers can get a 14-day trial. Tilly says calendar data is encrypted in transit and at rest and is not sold to third parties.