--- title: "DuoNinja - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Use comprehensible input to master any language. Build up your base vocabulary with lessons. Then focus on reading & listening fluency through news, texts and books. Use flashcards and lessons to fill" --- # DuoNinja — United States > Understand. Then speak. ![DuoNinja App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/f1/00/3d/f1003df3-fbf6-febd-79cf-961df8b436c4/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [Mink OU](https://apptail.io/developer/mink-ou-wcAyk) **Category:** Education **Rating:** 5.0/5 (2 ratings) **Price:** Free **Bundle ID:** com.duoninja.app **Store:** Apple App Store **Country:** United States **Version:** 1.0.3 (released 2026-09-13) **Original Release:** 2026-07-13 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6785968577) **AppTail Page:** [https://apptail.io/app/duoninja-CzTA/united-states](https://apptail.io/app/duoninja-CzTA/united-states) ## DuoNinja Description Use comprehensible input to master any language. Build up your base vocabulary with lessons. Then focus on reading & listening fluency through news, texts and books. Use flashcards and lessons to fill the gaps. Look up any word with AI or with dictionaries. Terms of Use: Privacy Policy: ## DuoNinja Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/70/bd/97/70bd97b7-4cb6-1b5a-186c-c18410efeec4/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_21.59.21.png/1206x2622.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b1/d1/e0/b1d1e026-5184-b8e3-ab02-511fd0d45d7b/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_22.00.18.png/1206x2622.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d0/9d/63/d09d6346-7d3b-45d8-b3eb-01b0dab51cee/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_22.01.24.png/1206x2622.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/42/06/e7/4206e7e1-34ba-b3fd-5d7c-a5a923200dfd/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_22.03.54.png/1206x2622.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/2a/d8/90/2ad890ed-9de8-5601-b3f5-88621f2ada35/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_22.04.56.png/1206x2622.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3c/c1/66/3cc16613-0896-f11b-6f50-b74ac06158ab/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_22.05.47.png/1206x2622.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/15/d5/e2/15d5e243-d4ef-61a4-0254-29b0b3d2ab7b/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_22.07.20.png/1206x2622.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a6/8e/9a/a68e9a19-8698-1b0d-c212-57921bc5bea8/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_22.09.13.png/1206x2622.png) - [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/4c/c0/e1/4cc0e170-a7e4-e7b2-5f30-24ef7bc74dbe/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_22.09.24.png/1206x2622.png) - [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8e/c2/62/8ec26238-82b5-f189-efa3-5d85839b8373/Simulator_Screenshot_-_iPhone_17_Pro_-_2026-07-08_at_22.03.14.png/1206x2622.png) ## DuoNinja Rating Breakdown in United States - 5 stars: 2 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## DuoNinja Reviews in United States ### ***** "OMG! So awesome!" Not so much a companion as a completely customizable way to learn. It’s a fantastic supplement to any language learning program, and leverages AI in a really useful way. I especially like how I Can create lessons to focus on a word or concept I’m having trouble with. -- rdamiani, 2026-07-16 [View all DuoNinja reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## DuoNinja In-App Purchases | Item | Price | |------|-------| | Premium Yearly | $47.90 | | Premium Monthly | $7.99 | ## Apps Similar to DuoNinja - [Deutsche Verben Pro](https://apptail.io/app/deutsche-verben-pro-UUBb/united-states) - [Places – San Francisco](https://apptail.io/app/places-san-francisco-Cbqf/united-states) - [Holy Trinity Orlando](https://apptail.io/app/holy-trinity-orlando-VsVf/united-states) - [拼音拡張](https://apptail.io/app/app-YyDj/united-states) - [Yomikiri](https://apptail.io/app/yomikiri-khFp/united-states) - [FastDirect](https://apptail.io/app/fastdirect-MRRp/united-states) - [Lingua Verbum -Learn Languages](https://apptail.io/app/lingua-verbum-learn-languages-KKww/united-states) - [LinguaRead: Learn by Reading](https://apptail.io/app/linguaread-learn-by-reading-UJCx/united-states) - [Wondering - Learn Anything](https://apptail.io/app/wondering-learn-anything-EtQy/united-states) - [우주먼지: 3D 태양계와 우주 탐험](https://apptail.io/app/3d-EDAz/united-states) ## DuoNinja Available In - [United States](https://apptail.io/app/duoninja-CzTA/united-states) - [Denmark](https://apptail.io/app/duoninja-CzTA/denmark) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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