# Flippon - Japanese Vocabulary — AI Mnemonics & Smart Study > AI Mnemonics & Smart Study (iPhone/iPad app by Chia-Chun Hsieh.) - Source: https://appshunter.io/ios/app/flippon-japanese-vocabulary/id6763745074 (this page in markdown: same URL + `.md`) - Developer: [Chia-Chun Hsieh](https://appshunter.io/developer/908221958) - Category: Education - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 18.0 · 92 MB - Languages: American English, Japanese, Korean, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Vietnamese - Released: 2026-06-07 - Data updated: 2026-08-26 - User reviews in markdown: https://appshunter.io/ios/app/flippon-japanese-vocabulary/id6763745074/reviews.md ## What is Flippon? Flippon is an AI-powered Japanese vocabulary learning app that combines smart flashcards with a powerful offline dictionary. Built with modern AI technology and spaced repetition science, Flippon helps you master Japanese vocabulary and prepare for the JLPT exam efficiently! Whether you are a beginner learning Hiragana or an advanced learner targeting JLPT N1, Flippon is your best companion for Japanese vocabulary acquisition. --- 【 Key Features 】 Smart, instant, and memorable! Simply enter any Japanese word, and our AI will automatically generate its reading (kana), precise definitions, and contextual example sentences with translations. It also creates custom "AI Memory Hints" (Mnemonics) to help your brain build associations, making vocabulary stick for good. Flippon integrates the open-source JMdict dictionary and the extensive Tatoeba example sentence database. Query words, parts of speech, and translations offline anytime without using any mobile data. Perfect for airplane rides, commuting, or traveling abroad. Using the scientific SM-2 Spaced Repetition Algorithm, Flippon schedules review sessions based on your word proficiency (0-5 scale). By prompting you to review right before your brain forgets, it guarantees maximum retention with minimum effort. Get instant access to official vocabulary packs curated for JLPT N5, N4, N3, N2, and N1. Free users can preview the packs, while Pro users can unlock the entire database, download it locally, and copy words to custom decks for personalization. Keep track of your study streak, daily review progress, vocabulary mastery distribution, and 7-day review trends with clean, interactive charts. Visualizing your progress turns vocabulary building into an engaging habit. Listen to high-quality native pronunciations for both terms and sentences. Customize your auditory learning experience with "Female / Male" voice preference settings (falls back to default female voice if the selected voice package is not downloaded on the device). --- 【 Why Choose Flippon? 】 - Clean & Premium UI: Minimalist modern design with full dark mode support, providing a distraction-free environment for focused study. - Complete Personalization: Create custom decks and organize words by topic or difficulty. You are in full control of your learning. - Hybrid Offline/AI Power: Query instantly offline to save data, and leverage AI when you need deep semantic explanations and mnemonic hints. Download Flippon today to supercharge your Japanese vocabulary learning! EULA (Terms of Use): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Pro Yearly Subscription | $12.99 | per year | | Pro Monthly Subscription | $1.49 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | JLPT N5: Beginner Vocab Pack | $4.99 | one-time | | JLPT N4: Elementary Vocab Pack | $4.99 | one-time | | JLPT N1: Advanced Vocab Pack | $6.99 | one-time | | JLPT N3: Intermediate Vocab Pack | $5.99 | one-time | | JLPT N2: Pre-Advanced Vocab Pack | $6.99 | one-time | | IT Vocab: Tech Vocabulary Pack | $4.99 | one-time | ## Version history (last 4 releases) ### 1.3.0 — 2026-08-20 - New: Word search now automatically matches across hiragana, katakana, and full-width/half-width characters. - Fixed: The review streak count could incorrectly show 0 before you'd reviewed anything today. - Fixed: Example sentence audio produced no sound while the device was in silent mode. - Performance & stability: Backup import/export is significantly faster, and we improved the reliability and security of review data storage and scheduling. ### 1.2.0 — 2026-06-22 Thank you for using Flippon! Here is what's new in this version: * Smooth Card Review: Optimized swiping performance on the flashcard review page, ensuring an ultra-smooth experience even with thousands of vocabulary cards. * Progress Auto-Save: Improved the database saving system to automatically back up your review progress when you minimize or close the app, preventing any data loss. * Enhanced Stability: Fixed background calculation lags to provide a more responsive and seamless study session. ### 1.1.0 — 2026-06-15 Thank you for using Flippon! Here is what's new in this version: * Quick Access to Pack Store: Added a "+" button to the top-right corner of the Decks page to quickly browse the Pack Store. * Empty State Improvement: Added an "Add Word" button directly to the empty state of the Word List for a smoother start. * UI & Layout Enhancements: Optimized the due words counter display to keep the card deck interface neat and clean. * Improved User Experience: Refined purchase page layouts and button animations, and resolved minor chart display issues for a much smoother experience. * Localization & Privacy Updates: Enhanced translations across multiple languages and updated privacy configurations to better protect your data. ### 1.0.0 — 2026-06-08 No release notes. ## Apps similar to Flippon | App | Rating | Price | Category | | --- | --- | --- | --- | | [LinguaStage:JLPT対策アプリ最速で単語を覚える](https://appshunter.io/ios/app/linguastagejlpt/id6760453434) | — | Free | Education | | [Udiko : Learn Japanese](https://appshunter.io/ios/app/udiko-learn-japanese/id6751030872) | — | Free | Education | | [LinguaStage Bunpō](https://appshunter.io/ios/app/linguastage-bunpo/id6760740072) | — | Free | Education | | [Tot Japanese](https://appshunter.io/ios/app/tot-japanese/id6453023891) | — | Free | Education | | [日文單字－五十音到日檢N1日語](https://appshunter.io/ios/app/n1/id6784779535) | — | Free | Education | | [Mirai's Schedule AI×Image](https://appshunter.io/ios/app/mirais-schedule-aiimage/id6757080757) | — | Free | Education | ## More apps by Chia-Chun Hsieh - [颱風假給我](https://appshunter.io/ios/app/id908221955) - [The Legend of Moon](https://appshunter.io/ios/app/the-legend-of-moon/id919006747) - [ŌωOmoji - Kaomoji Keyboard](https://appshunter.io/ios/app/oomoji-kaomoji-keyboard/id977876203) - [OnClick!](https://appshunter.io/ios/app/onclick/id1006187214) - [Blend - Block Eliminate](https://appshunter.io/ios/app/blend-block-eliminate/id1015346461) - [GPX Editor](https://appshunter.io/ios/app/gpx-editor/id1059292866) All apps by Chia-Chun Hsieh: https://appshunter.io/developer/908221958 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*