Estimated from the grossing charts of Oct 26, 2026 in the 53 countries we track, and ratings growth on the App Store.
From our daily snapshots of every grossing chart.
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Measured from the store, not estimated.
From the latest 21 reviews on the Japan App Store, Oct 14, 2018 to Sep 29, 2026: 33% are 1 or 2 stars. Open a theme to read what people wrote.
No common theme in the bad reviews, or they aren't in English.
Nothing stands out.
Not enough good reviews in English to tell.
Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.
Latest reviews, Japan App Store.
Not really sure what’s going on here. Set for half hour sleep or 1 hr max and goes off in half hour. Doesn’t really seem to be measuring anything. And The developers response is mistaken. I was awake for the half hour. NOT napping, so the response I nonsensical. 1 star!
Works amazing, somehow knocks you out almost instantly and wakes you when you set it. The snooze feature should be eliminated however
I have used this several times and never been able to see the results, that this app claims to do.
It’s a good nap, App I like it. I just wish it had how much sleep you’ve had. I don’t know what the clock thing means. I guess if it’s on the 15 on the side or left, it’s a 15. I wish I had how much sleep you had when you wake up you see it easily.
やさしい音楽で起こしてもられていいです。設定ボタンが少し意味不明のところがあります。
First of all… meant to tap the 5 star. I like the ‘sleep time’ readout of how much and IF I did sleep.(with 20 min nap—which are perfect for me) I sometimes feel I didn't actually fall asleep — this is able to let me see that I did. *just now I felt I didn't sleep at all— but I feel SO much better, and yeah, the app shows I actually slept 27 of the 20 min. -Perfect! Time to go crush!
Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.
Apple only publishes ads shown in the EU (EU Digital Services Act), with a 7 day delay. An app that advertises only outside the EU shows nothing here.
Where this app is buying and earning its users. Each link opens pre filtered.
Most repeated terms in the listing. Highlighted ones also appear in the title.
Released Aug 26, 2015. Current version shipped Jan 30, 2026.
Prices, ranks and reviews are per country. Revenue above is already worldwide.
