
AMATERAS | Smart Alarm
Wake gently from light sleep
0 ratings
Free
Rating summary
About
Set a time, tap Sleep. That's it.
AMATERAS estimates when you're stirring from your movement and wakes you up to 5 minutes early.
• Built to ring even if you forget or your phone is on silent (device settings or battery savers may still block it — run a test alarm first)
• Swipe to stop
• Re-sleep guard: rings again at your set time if you stop early (picking up your phone cancels it)
• Estimated sleep depth chart and rough habit guides (estimated)
• 11 alarm tunes; "Auto" picks one to match your estimated sleep state
• Free, with no ads and no in-app purchases; no account; records stay on your device (sent only if you turn on "Help improve the App")
Estimated from body movement. Not a medical device.
Terms of Use (in addition to Apple's standard EULA): https://amateras.amaterasu-vocab.com/terms
Privacy Policy: https://amateras.amaterasu-vocab.com/privacy
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What's New in AMATERAS | Smart Alarm
1.0.6
October 22, 2026
• Asks before starting when your alarm is far away, or when you start without an alarm during the day • Records that look like time spent awake (e.g. phone carried during the day) are no longer counted in sleep averages or habits • On iOS 18 and earlier, warns when the alarm volume is low
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