Calerto turns your calendar into alarms you can't sleep through. Full-screen meeting alerts — not another notification you'll swipe away — with custom prep time per meeting, Apple + Google Calendar sync, a menu bar countdown to what's next, and automatic launch at login (toggle it off anytime). Pause alarms without losing them. Pro auto-alarms your whole week. Your calendar data never leaves your device. Never be late again.
I built Calerto because ordinary calendar notifications are surprisingly easy to miss when you are deep in work, in Focus mode, or moving between apps.
Calerto for Mac gives important meetings a much harder-to-miss moment:
• Connect Apple Calendar and Google Calendar
• Choose which calendars appear
• Set alerts 1, 5, 10, 15, 30, 60 minutes — or a custom time — before a meeting
• Get a full-screen alert, including during Do Not Disturb / Focus
• Join the meeting directly from the alert
• Keep your schedule on your device
The goal is intentionally simple: help you stay focused without accidentally missing the meeting that matters.
I would love feedback on two things:
1. What would make this useful enough to keep running every day?
2. What calendar or meeting workflow should we support next?
Calerto for Mac launched on Product Hunt on September 12th, 2026 and earned 108 upvotes and 13 comments, placing #5 on the daily leaderboard. Calerto turns your calendar into alarms you can't sleep through. Full-screen meeting alerts — not another notification you'll swipe away — with custom prep time per meeting, Apple + Google Calendar sync, a menu bar countdown to what's next, and automatic launch at login (toggle it off anytime). Pause alarms without losing them. Pro auto-alarms your whole week. Your calendar data never leaves your device. Never be late again.
On the analytics side, Calerto for Mac competes within Mac, Productivity and Menu Bar Apps — topics that collectively have 776.3k followers on Product Hunt. The dashboard above tracks how Calerto for Mac performed against the three products that launched closest to it on the same day.
Who hunted Calerto for Mac?
Calerto for Mac was hunted by rohit jindal. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Calerto for Mac including community comment highlights and product details, visit the product overview.
rohit jindal
Hey Product Hunt — Rohit here, maker of Calerto.
I built Calerto because ordinary calendar notifications are surprisingly easy to miss when you are deep in work, in Focus mode, or moving between apps.
Calerto for Mac gives important meetings a much harder-to-miss moment:
• Connect Apple Calendar and Google Calendar
• Choose which calendars appear
• Set alerts 1, 5, 10, 15, 30, 60 minutes — or a custom time — before a meeting
• Get a full-screen alert, including during Do Not Disturb / Focus
• Join the meeting directly from the alert
• Keep your schedule on your device
The goal is intentionally simple: help you stay focused without accidentally missing the meeting that matters.
I would love feedback on two things:
1. What would make this useful enough to keep running every day?
2. What calendar or meeting workflow should we support next?
Download: https://apps.apple.com/us/app/calerto-meeting-alarm/id6747410132