An automatic sleep tracker via Apple Watch that requires no button presses. It collects more data than the built-in Apple Health, including breathing rate and detailed sleep stages, but after updates it periodically loses sessions and overstates wakefulness.
評価点：Users with apnea use it to catch oxygen drops and go to their doctor with real data.
不満点：The interface is overloaded: 12 metrics on one screen with no explanations, and the smart alarm is awkward to activate from the Watch.
向いている人：Apple Watch owners who want automatic tracking without manual start
A sleep tracker via Apple Watch with phases, nighttime sound recording, and blood oxygen. Phase accuracy is acceptable, but the app misidentifies sleep during low activity and forces a trial subscription from the very start.
評価点：Longtime users value the sleep quality visualization and nighttime sound recording through the Watch.
不満点：The algorithm confuses lying still with deep sleep and falsely logs driving in a car as sleep.
向いている人：Apple Watch owners who want sleep phases and nighttime sounds in one place
The app is built around the concept of sleep debt and predicts energy peaks throughout the day. The idea is sound, but Apple Health imports truncate sleep sessions by several hours and the AI coach repeats the same questions instead of working with data already entered.
評価点：Users with children appreciate reminders about their real sleep schedule and the deficit estimate.
不満点：The algorithm handles split sleep and shift schedules poorly and loses sleep blocks during import.
向いている人：People who want to understand their chronotype and manage sleep debt across the week
One of the few mobile trackers with a smart alarm that genuinely wakes you during a light sleep phase without cutting into deep sleep. Microphone analysis of nighttime sounds works, and years of data produce trends. Accuracy has declined after recent updates according to some long-term users.
評価点：The smart alarm within a set window catches a light phase and waking up feels noticeably easier.
不満点：Nighttime tracking via the microphone is incompatible with simultaneous white noise playback.
向いている人：People who want to understand their sleep patterns through data, not just mask the silence
SleepScore uses the phone's sonar for contactless sleep phase analysis and generally identifies the moment of sleep onset correctly. The key problem: the developer removed the detailed sleep stage chart from the interface, sharply reducing value for users who tracked their progress.
評価点：Users appreciate the contactless sonar-based method and the ability to monitor sleep without a wearable.
不満点：The removed sleep stage chart stripped the app of its main analytical tool, and the sonar emits an audible high-frequency sound that interferes with falling asleep.
向いている人：People who want basic tracking without a smartwatch
