Compared August 2026 · every price and feature below was checked against ReciproCal Sync’s own App Store listing on 28 August 2026. These change — check the ReciproCal Sync App Store listing before deciding.
The closest match on features. Free to try, subscription or $44.99 to keep.
Feature for feature this is the closest thing to Calendar Mirror on the App Store. On-device, no account, one-way and loop-free, rules for time windows and keywords, a neutral “Busy” mask, and a menu-bar agent on Mac. If you read this site’s front page and then read theirs, you would struggle to tell which described which.
What separates them is how you pay, and how far the rules reach. ReciproCal is free for one rule, then $2.99 a month, $17.99 a year, or $44.99 once. Calendar Mirror is $2.99 once for everything. In exchange, ReciproCal syncs your rules across devices and matches on location and notes, which Calendar Mirror does not do.
| Calendar Mirror | ReciproCal Sync | |
|---|---|---|
| Price | $2.99 once, everything included · free from source | Free for 1 rule; Pro $2.99/month, $17.99/year, or $44.99 once |
| Where it runs | Entirely on your device | Entirely on your device |
| Account required | None | None |
| Platforms | iPhone, iPad, Mac | iPhone, iPad, Mac (iOS/macOS 18+) |
| Number of rules | Unlimited | 1 free; unlimited on Pro |
| Open source | Yes — MIT | No |
| Matching on | Title, plus the event’s own properties | Title, location and notes |
| Time-of-day rules | Keep or drop a window, with chosen weekdays | Inside or outside chosen hours |
| Duration filters | Yes — shorter or longer than N minutes | Not published |
| RSVP filters | Skip declined, unanswered or cancelled meetings | Not published |
| Per-event override | Yes — #nomirror, #private, #public in the notes | Not published |
| Rules synced across devices | No — configured per device | Yes, via your own iCloud (rules only, never events) |
| Preview of what is synced | No | A calendar view showing synced events in both calendars’ colours |
| Apple Shortcuts | No | Yes, plus a Home Screen quick action |
| Mac background agent | Included | Menu-bar agent on Pro |
Not a privacy comparison. ReciproCal Sync runs on your device, with no account and no server, exactly as Calendar Mirror does. Neither is the private one; the differences are elsewhere.
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 ReciproCal Sync in any way, and this page is written by Calendar Mirror’s author.