Compared August 2026 · every price and feature below was checked against SYNCDATE’s own site on 28 August 2026. These change — check the SYNCDATE site before deciding.
Live sync across CalDAV, iCloud and Google, with a usable free tier.
If you are choosing on features alone, this is the hardest one to argue against. SYNCDATE syncs live when a calendar changes, supports CalDAV broadly — iCloud, Fastmail, Nextcloud, self-hosted — and filters on RSVP, all-day, free time, title and a days-and-hours window. That overlaps most of what Calendar Mirror's filters do.
Pick by where you want the work done. SYNCDATE runs on a server, which means it works with no Apple device, covers CalDAV hosts Calendar Mirror has never heard of, and has a free tier. Calendar Mirror runs on your device, which means no account and nothing transmitted. Both are defensible; they are not the same trade.
| Calendar Mirror | SYNCDATE | |
|---|---|---|
| Price | $2.99 once · free from source | Free tier; Plus $7.42/mo ($89.04/yr); Pro $14.08/mo ($168.96/yr); Team on request |
| Account required | None | Yes |
| Where your calendar goes | Nowhere. It never leaves the device. | To their servers |
| Platforms | iPhone, iPad, Mac | Web |
| Calendar sources | Anything the device can see — iCloud, Google, Exchange, CalDAV, subscribed ICS feeds | Google, iCloud, Fastmail, Infomaniak, Nextcloud, self-hosted CalDAV, iCal feeds as read-only sources |
| Live sync | Detects changes within seconds on macOS (standalone build only) | “Live sync when a calendar changes”, on all plans |
| Filters | Declined, unanswered, cancelled, all-day, free, duration bounds, title include/exclude, time-of-day and weekday window | All-day, title, free time, RSVP (yes / maybe / all), chosen days and hours |
| Duration filters | Yes — shorter than / longer than N minutes | Not published |
| Per-event override | Yes — #nomirror, #private, #public in an event's notes | Per-calendar rules on Pro and Team; per-event tags not published |
| Non-Apple CalDAV hosts | Only if the device can subscribe to them | Yes — any standards-compliant CalDAV server |
SYNCDATE already reads iCloud, CalDAV and iCal feeds directly, so the bridging trick that helps with the other tools mostly is not needed.
The one gap it leaves is a calendar that exists only on your Mac — an Exchange account configured in macOS, say — which no hosted service can authenticate to. Calendar Mirror can mirror that into an iCloud or CalDAV calendar SYNCDATE does read. Beyond that, the two overlap more than they complement.
Bridging adds a hop: Calendar Mirror writes the copy on your device, and the other service then reads that copy on its own schedule. It needs the destination account set up on your Mac or iPhone, and the copy is one-way, like every Calendar Mirror mirror.
None of these are coming later. If you need one of them, buy something else:
One purchase covers iPhone, iPad and Mac. Calendar Mirror is not affiliated with SYNCDATE in any way, and this page is written by Calendar Mirror’s author.