Amp Volume Booster: Boom me dB
丹丹 李
Boost audio instantly
Boost audio for videos and games up to 1000%. Adjust sound levels manually. Supports various file formats. No ads or additional features.
Learn kanji through quizzes and drills
Learn kanji for elementary school 2nd graders with 160 characters. Practice reading and writing through quizzes. Track progress with checkmarks and medals. Take random tests for review. Repeat difficult characters for mastery.
Showing 21–40 of 1,000 ranked alternatives.
丹丹 李
Boost audio instantly
Boost audio for videos and games up to 1000%. Adjust sound levels manually. Supports various file formats. No ads or additional features.
Dave duVerle
Practice kanji with flashcards and quizzes
Learn Japanese with drills, quizzes, and flashcards for kana, kanji, vocabulary, and grammar. Track progress with charts and scores. Earn game-like achievements for each level. Practice handwriting with KanjiDraw and KanaDraw add-ons.
POLYGLOTS inc.
Learn English with AI lessons and custom
Learn English with lessons, vocabulary, grammar, reading, listening, speaking, and writing. Access AI-generated study plans and teacher-led sessions. Practice with TOEIC/TOEFL-style news articles. Track progress and set personalized word lists.
Class Ace LLC
Play challenges and earn medals
Ace offers challenges for 2nd graders to practice addition, subtraction, time, money, geometry, and equations. Players earn medals, level up their jetpack, and progress through dynamic, minute-long activities aligned with Common Core standards.
The Japan Foundation
Learn with pictures and quizzes
Learn through mnemonic images, audio, and animations. Take quizzes to test knowledge. Receive simple explanations about Japanese writing system and characters. Track progress through interactive lessons.
Fantamstick, Ltd.
Learn characters and progress through levels
Learn characters from Japanese elementary school curriculum. Play interactive games to memorize meanings and readings. Unlock levels corresponding to grade 1 through 6. Review progress with visual aids and quizzes.
俊康 辛
Read novels on multiple devices.
The app offers real-time preloading for reading in areas without reception. It allows users to select multiple themes, including background, color, and text size, for eye comfort.
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