Fastmail Calendar vs IONOS Email
Fastmail Calendar
fastmail.com
IONOS Email
ionos.comSide by side
| Figure | Fastmail Calendar | IONOS Email |
|---|---|---|
| Price from | $4/mo | $1/mo |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 6 | 3 |
| Spec score · Business Email Hosting | 8.9 (#2) | 8.0 (#14) |
| Founded | 1999 | 1988 |
| Headquarters | Melbourne, Australia | Montabaur, Germany |
| 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. | IONOS says its email plans include spam filtering, with virus scanning and customizable blacklists and whitelists available. |
| Support | Every plan includes expert support from real people, and the pricing page says support is available 24/7. | IONOS advertises 24/7 expert support by phone, chat, or email and a personal consultant. |
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
IONOS Email
- Microsoft 365$1 a month
- IONOS Email$3 a month
- Microsoft Exchange$4.50 a month
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.