Calerto vs Cupola
Two Productivity products side by side.
| Calerto | Cupola | |
|---|---|---|
| What it does | Turns calendar meetings into loud iOS alarms | Apple Calendar, Reminders and Notes in your Mac's notch |
| Pricing | Free plan | Free trial |
| Categories | Productivity | Productivity |
| Tags | iOS, macOS, Scheduling, Privacy-first | macOS, Privacy-first, Local-first, Scheduling, Notes |
| Score | 38%8 votes | 50%8 votes |
| Website | apps.apple.com | trycupola.com |
| Founder | Not listed | Not listed |
| Listed | Oct 3, 2026 | Oct 3, 2026 |
Which should you pick?
- If price decides it, start with Calerto: it is listed as free with paid plans, while Cupola is paid with a free trial.
- Voters lean towards Cupola so far: 50% said launch from 8 votes, against 38% from 8 votes for Calerto.
- Only Calerto is tagged iOS.
- Only Cupola is tagged Local-first and Notes.
Positioning is from each listing, not an endorsement.
About Calerto
Calerto reads upcoming events from Apple Calendar and Google Calendar and sets a real alarm before each meeting, with a prep-time buffer you choose. Presets run from 5 to 60 minutes, and you can type any custom buffer up to a full day. It uses iOS AlarmKit, so the alarms ring through Do Not Disturb and silent mode. Live Activities show your next meeting on the Lock Screen.
You set an alarm with one tap or swipe. Alarms can be paused without being deleted, and recurring events can get repeating alarms. A countdown card shows the next meeting. When an alarm rings, a Join button for Zoom, Google Meet, Microsoft Teams or Webex becomes active five minutes before the start time. Snooze only works until the meeting begins. The Pro tier adds auto-alarms for every meeting in the next seven days and connections to more than one calendar.
Calendar data stays on the device, and the App Store listing says no data is collected. Calerto runs on iPhone, iPad and Mac and needs OS version 26 or later. The app is free to download. Pro costs $2.99 a month, $12.99 a year, or $24.99 for lifetime access.
About Cupola
Cupola is a native Mac app that puts Apple Calendar, Reminders and Notes together in one place. Hover over the MacBook notch to open a panel with four tabs: your week's calendar, reminders you can tick off, your real Apple Notes with checklists, and a focus timer you set by dragging a dial. Click "View all" to open the full app, which has day, week, month and agenda views, reminder lists and tags, and a home screen showing today's events, reminders and recent notes. On Macs or displays without a notch, a small pill at the top of the screen opens the same panel.
You can type entries in plain language, like "dentist next tuesday 4pm", and Cupola works out the date and time and adds the item to Calendar or Reminders. It reads from and writes to Apple's own apps, so there's nothing to import and no account to create. Changes made in either place show up in the other, and on your iPhone through iCloud. Your calendars, notes and reminders are never uploaded. The app only goes online to check for updates, verify your license and send crash reports, which you can turn off.
Cupola isn't on the Mac App Store. You install it with a one-line Terminal command. It needs Apple silicon and macOS 26 or later. There's a 7-day free trial with no card required, then a $20 one-time lifetime license with a 14-day refund window.