Alarms that skip holidays, ring at sunrise, and make sure you actually wake up.
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Chronos is a smart alarm clock that adapts to your real life — your holidays, your location, even the sun.
⏰ Reliable above all
Alarms ring at the exact time, over the lock screen, through Do Not Disturb, and after reboots. A built-in reliability checklist verifies your permissions and alarm volume so you're never silently let down.
📅 Smart holiday skipping
Enable smart mode and your work alarm automatically stays quiet on public holidays and the free days you mark. Holiday calendars for your country sync automatically — no more waking up at 7:00 on a day off.
📆 Date alarms
Set an alarm for an exact date — once, every year (birthdays, anniversaries), or a chosen day every month.
🌅 Solar alarms
Anchor alarms to sunrise, sunset, or twilight instead of a fixed time — with an optional offset. Perfect for runners, photographers, and early birds. Computed offline, right on your device.
📍 Location-aware alarms
Make an alarm ring only if you're inside (or outside) a zone you choose — a reminder that fires when it actually matters.
🧠 Wake-up challenges
Stop oversleeping: dismiss alarms by solving math, retyping a number, repeating a pattern, or finding emojis in a grid. Or make it a game: whack the troll, swat a mosquito, match the pairs, tilt your phone to roll a ball through a maze, save a penalty, sink a ship with your cannon, or catch the breakfast order on a tray. Set a snooze limit and stick to it.
Also included
• One-time or repeating alarms on the weekdays you choose
• Per-alarm sounds and vibration
• Home-screen widget with your next alarm
• Sunrise timeline card for your day at a glance
• 34 languages
• Optional account to sync across devices — the app works fully without one; no ads; your alarm data stays on your device
Chronos Premium (subscription or one-time lifetime purchase) unlocks unlimited alarms, advanced wake-up challenges, solar alarms, and location conditions. The core alarm experience is free forever.