Improved quiz and reading layouts to make better use of available screen space. Your learning progress and settings are preserved.

What's new in 2.2 • AcoustioNary is now FREE to download. The no-ads / no-tracking / data-stays-on-device stance is unchanged. • Choose your native language and learn English from your own language: Korean, Simplified & Traditional Chinese, Latin American Spanish, Brazilian Portuguese, Indonesian, Thai, Vietnamese, French, and Arabic. • Revamped English-immersion mode: in English, you see the English word, its English definition, and an English example. • Spaced Repetition: every "Got it" tap pushes the card further into the future; missed cards come back sooner. The Study tab now serves up the next-due card in order, so the buttons finally feel like they're doing something. • A large set of advanced "guitar-world" vocabulary — lutherie, tonewoods, setup, recording, technique, and music-theory words that guitar lovers will recognize. • New Expression Companion: begin with a real musical moment, explore nearby emotional nuances, rewrite the English in your own voice, and build a natural conversation turn. Your Personal Expression Library stays on-device. • Small Study-card layout polish so long headwords and phrases fit on one line. • Optional Tip Jar to support development — tips don't unlock anything; just a heartfelt thank-you. To everyone who bought the paid version: thank you. Onwards, in the guitar world.

What's new in 2.1 • AcoustioNary is now FREE to download. The no-ads / no-tracking / data-stays-on-device stance is unchanged. • Choose your native language and learn English from your own language: Korean, Simplified & Traditional Chinese, Latin American Spanish, Brazilian Portuguese, Indonesian, Thai, Vietnamese, French, and Arabic. • Revamped English-immersion mode: in English, you see the English word, its English definition, and an English example. • Spaced Repetition: every "Got it" tap pushes the card further into the future; missed cards come back sooner. The Study tab now serves up the next-due card in order, so the buttons finally feel like they're doing something. • A large set of advanced "guitar-world" vocabulary — lutherie, tonewoods, setup, recording, technique, and music-theory words that guitar lovers will recognize. • Small Study-card layout polish so long headwords and phrases fit on one line. • Optional Tip Jar to support development — tips don't unlock anything; just a heartfelt thank-you. To everyone who bought the paid version: thank you. Onwards, in the guitar world.

What's new in 2.0 • AcoustioNary is now FREE to download. • Every 45 minutes of practice, watch one short rewarded video to keep going (or watch three back-to-back for +135 minutes). • New "Remove ads forever" one-time in-app purchase — buy once, ads gone for good. • Anyone who bought the previous paid version is automatically granted Remove Ads — no need to purchase again. Thanks for keeping the guitar world close. Send feedback anytime from Support in the app.

・読み上げ速度を 0.25〜2.0倍で自由に調整できるようになりました。 ・長文を音声で読み上げる機能を追加しました（シャドーイングやリスニング練習に）。 ・単語カードからも再生速度を調整できるようにしました。 ・再生ボタンのデザインを刷新しました。 ・例文と解説の表現を一部見直し、細かな修正・改善を行いました。 いつもご利用ありがとうございます。ご意見・ご要望はアプリ内のサポートからお寄せください。