Estimated from the grossing charts of Oct 25, 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 15 reviews on the United States App Store, Jan 6, 2020 to Jul 5, 2026: 0% are 1 or 2 stars. Open a theme to read what people wrote.
Only 0 of the latest 15 reviews are 1 or 2 stars, too few to find patterns. Users are mostly happy.
Nothing stands out.
4 of the 4 and 5 star reviews.
★★★★★ Everything is simple and useful.
★★★★★ It's easy to use and does its job well, thank you!
★★★★★ Simple layout with different units, I do wish that units I have finished were put in a different folder or something so it would be a little easier to get to them to review, but that's a minor complaint because as it…
2 of the 4 and 5 star reviews.
★★★★★ I like this app and it's very useful.
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, United States App Store.
I needed this mix of harder words and basic words that still didn’t skew completely basic. I like the flash card like setup in the beginning of each unit along w pronunciation help. And the ability to save specific words is key.
Exactly what I needed. Everything is simple and useful. The way I best use it is: I learn 15 new words in the morning, review them in the afternoon and do a full review of all previous words in the evening. Throughout the day, I listen to my favourite words on loop. So very convenient. Then, before bed, I read korean books and am always amazed to find I need the dictionary less and less.
I like this app and it’s very useful. One thing I’d like to see updated is a flash card feature to make it easier to review/memorize words within the app! Overall great resource 😊
I’ve learned a lot of vocab with this app. It’s easy to use and does its job well, thank you! 😎🤙
as an intermediate learner, i feel like this is a good main app to use for vocabulary because it gives a variety of very well known words mixed with new words that i dont know, so not only am i learning new vocabulary, but also reviewing past ones to not forget!! very good 👌👌
Within a few days of this app, I’ve already retained some words. The only thing I wish would be updated on this app is a testing function that makes you type in the answer, everything else is amazing!!!
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Most repeated terms in the listing. Highlighted ones also appear in the title.
Released Dec 7, 2019. Current version shipped Oct 20, 2026.
Prices, ranks and reviews are per country. Revenue above is already worldwide.
