Estimated from the grossing charts of Oct 21, 2026 in the 53 countries we track, and ratings growth on the App Store.
From our daily snapshots of every grossing chart.
| Sep 24, 2026 | $170.7K a month |
| Sep 25, 2026 | $170.9K a month |
| Sep 26, 2026 | $238.2K a month |
| Sep 27, 2026 | $234.2K a month |
| Sep 28, 2026 | $331K a month |
| Sep 29, 2026 | $171.2K a month |
| Sep 30, 2026 | $23.1K a month |
| Oct 1, 2026 | $24K a month |
| Oct 2, 2026 | $23K a month |
| Oct 3, 2026 | $23K a month |
| Oct 4, 2026 | $21K a month |
| Oct 5, 2026 | $21.3K a month |
| Oct 6, 2026 | $21.1K a month |
| Oct 7, 2026 | $21.3K a month |
| Oct 8, 2026 | $21K a month |
| Oct 9, 2026 | $20.9K a month |
| Oct 10, 2026 | $21.5K a month |
| Oct 11, 2026 | $22.1K a month |
| Oct 12, 2026 | $22.1K a month |
| Oct 13, 2026 | $290.9K a month |
| Oct 14, 2026 | $309.8K a month |
| Oct 15, 2026 | $107.9K a month |
| Oct 16, 2026 | $129.3K a month |
| Oct 17, 2026 | $86.9K a month |
| Oct 18, 2026 | $33.4K a month |
| Oct 19, 2026 | $86.4K a month |
| Oct 20, 2026 | $91.4K a month |
| Oct 21, 2026 | $402K a month |
| Oct 22, 2026 | not in a grossing chart |
Measured from the store, not estimated.
From the latest 31 reviews on the United Kingdom App Store, Nov 15, 2021 to Aug 6, 2026: 26% are 1 or 2 stars. Open a theme to read what people wrote.
4 of the 1 and 2 star reviews.
★★★★★ Even though I'm a paid member on the iPhone app I always get a connection error unless I reload the app multiple times and it prevents me using it.
★★★★★ There is no offline mode, so when the server is down (such as now), the app straight up doesn't work.
★★★★★ I want to love this app but the trial is very limited and it's been very buggy on my ipad.
3 of the 1 and 2 star reviews.
★★★★★ If I paid more for this app I'd demand a refund.
★★★★★ I want to love this app but the trial is very limited and it's been very buggy on my ipad.
Nothing stands out.
7 of the 4 and 5 star reviews.
★★★★★ If you can already operate at a basic level then this app is great, fills that gap nicely from beginner to intermediate and beyond which is often lacking. The ability to use native materials with instant translation…
★★★★★ Hi there,I would like to say that your exercises are very helpful to memorize new words, thanks a lot❤️
★★★★★ A great vocab builder and you can learn what is good for you not what they tell you. If you use good flashcards your vocabulary will really improve. Free version is also great.
3 of the 4 and 5 star reviews.
★★★★★ I love the interface and how you can make your own flash cards all for free.
★★★★★ Free version is also great.
★★★★★ I am using the ad version but may go add free in the future.
2 of the 4 and 5 star reviews.
★★★★★ DuoCards makes learning so easy it's literally little flash cards that you swipe it's like I'm eating a burger with tiny bites yk OH ITS BITESIZE that's what I mean.
★★★★★ As someone who works in software I love how user friendly the app is and how interactive it is.
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 Kingdom App Store.
я попробовал очень много способов как учить иностранные слова, но только в этом приложении у меня получилось РЕАЛЬНО выучить больше 1050 слов/фраз на английском и больше 600 на итальянском (учил в 2025, запоминал реально быстро и эффективно) Конечно если сюда не заходить, то весь словарь забывается, но это проблемы нашего мозга, а не этого милого мамонтёнка. всем мир
The momo is very very cute.
Even though I’m a paid member on the iPhone app I always get a connection error unless I reload the app multiple times and it prevents me using it. If I swipe any cards whilst this connection error warning is present none of my progress saves which has cost me ALOT of time. If I paid more for this app I’d demand a refund. This app used to work fine so not sure what the problem is, no other app does this to me so I know it’s not my fault.
There is a bug since the last update, I have emailed about it already. When testing one set, the “listening exercise” option is not working and both with or without this setting shows cards with native language and learning language first. Please, can this be fixed as I use the app daily and it makes learning the words more difficult.
If you can already operate at a basic level then this app is great, fills that gap nicely from beginner to intermediate and beyond which is often lacking. The ability to use native materials with instant translation and save flash cards from that video are brilliant, this is my favourite language app I’ve come across and highly recommend.
The app is confusing. Not the languages, just the way it works. The cards are so random and the swipe feature essentially means you wont practice stuff you know, and then when you practice stuff you don’t know you just swipes until youve learned it, there’s no real point to the swiping. I’m learning dutch and it only reads the english out loud, not the dutch. Also clicking on a youtube video took me to making my own cards, not the video. And then when I clicked it again it said I could only watch the video through youtube, and not the app. And that was a video the app had selected. Doesn’t work. Don’t waste your money. Don’t bother.
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Released Apr 15, 2020. Current version shipped Aug 29, 2026.
Prices, ranks and reviews are per country. Revenue above is already worldwide.