Everything you need to show up on time
OnTimer isn't just another alarm app. It's a complete punctuality system built around your real life.
Your calendar already knows your schedule.
OnTimer connects directly to your native iPhone calendar. It reads every event with a time — meetings, doctor appointments, flights, gym sessions — and builds your alarm schedule automatically. You never have to manually enter an event.
- ✓Reads all calendar events automatically
- ✓Works with iCloud, Google Calendar, Outlook, and more
- ✓Syncs in real time as your calendar updates
- ✓No duplicate data entry, ever
Set it once. Forget about being late forever.
Once OnTimer knows your events, it creates alarms automatically — no tapping, no scheduling. Choose your default lead time and OnTimer handles the rest. You wake up to exactly the right alarm at exactly the right time.
- ✓Alarms created automatically for every event
- ✓Customizable lead times (15 min, 30 min, 1 hour, etc.)
- ✓Alarms update when events change
- ✓No alarm fatigue — only relevant events get alarms
An alarm that actually works.
Most alarm apps let you dismiss and forget. OnTimer's alerts are designed to get your attention and keep it. Escalating notifications ensure you know it's time to go — even if you're deep in focus mode.
- ✓Escalating alert system for critical events
- ✓Rich notifications with event details
- ✓Works with Focus modes and Do Not Disturb
- ✓Persistent reminders until you acknowledge
Smart defaults. Endless customization.
Every person's schedule is different. OnTimer gives you the controls to make it your own — choose which calendars get alarms, set custom lead times per event type, and snooze with confidence knowing OnTimer has your back.
- ✓Per-calendar alarm settings
- ✓Custom lead times per event
- ✓Snooze that re-alerts before you're truly late
- ✓Mute individual events when needed
Less anxiety. More presence.
When you know OnTimer has your schedule covered, you stop clock-watching. You can be fully present in whatever you're doing, knowing that an alarm will fire when it's actually time to leave — not a second too early, not a second too late.
- ✓Reduces time-anxiety throughout the day
- ✓Clean, distraction-free interface
- ✓Quick glance status of upcoming events
- ✓Peace of mind built in
Ready to stop being late?
Download OnTimer for free and be on time to everything.