Echo Fluency
pronunciation trainer
Listen to a native sentence, repeat it, hear yourself, and get an evaluation. The microphone opens automatically, and missed sentences can return for another attempt.
Speaking practice with immediate feedback.
Echo Fluency plays a CEFR-graded sentence, records your repeat automatically, plays your voice back, and evaluates the attempt with speech-to-text. Flashcards, grammar lessons, and vocabulary games use the same English content for review.
Designed for learners from A1 through B2. Already learning Japanese? Try the Japanese track →
Speaking is the main loop. The other tools give you vocabulary, grammar, and review work to support it.
Listen to a native sentence, repeat it, hear yourself, and get an evaluation. The microphone opens automatically, and missed sentences can return for another attempt.
Flashcards use an SM-2-based review schedule. Rate each card Again, Hard, Medium, or Easy, and the next interval changes with your rating.
Grammar patterns are organized from A1 through B2. Examples include native audio, and interactive quizzes let you check each pattern.
Speed Tap, matching, and Fever Pitch use vocabulary from your decks, giving you another way to review the same words.
Echo Fluency is the app's speaking practice loop. You listen to a native sentence, repeat it, hear your recording, and receive speech-to-text evaluation. The microphone and playback steps are handled for you.
I would like to order a coffee, please.
/aɪ wʊd laɪk tuː ˈɔːrdər ə ˈkɒfi pliːz/
Used when: ordering at a café or counter.
A CEFR-graded sentence appears. High-quality cloud TTS plays the native audio. You listen.
The microphone opens automatically after playback. Just repeat. No tapping.
You hear yourself immediately. The gap between you and the native model becomes obvious, and that's where the improvement happens.
Speech-to-text grades your pronunciation. ✅ Correct → next sentence. ❌ Incorrect → re-queued until you nail it.
Master a sentence five times and the review interval multiplies by 4×, advancing it to the next mastery tier. Review time is focused on sentences that still need practice.
Independent use · detailed discussion & argument
Everyday conversation & routine matters
Simple exchanges on familiar topics
Foundational vocabulary & basic phrases
Four CEFR levels total, from absolute beginner to confident, independent use. Your Roadmap tracks real progress across all of them.
Flashcards use an SM-2-based spaced-repetition schedule. Your Again, Hard, Medium, or Easy rating changes the next review interval.
Resets to Learning. Short interval. Ease drops.
Interval shrinks. Stays in Learning. Ease drops.
Standard SM-2. Interval × ease factor.
Interval extends further. Ease rises. Heads weekly.
The Dashboard shows your daily target, cards due for review, activity history, and position across the CEFR roadmap.
Sentences completed vs. your daily target. See sentences completed against your daily target and the number of cards due for review.
Bar chart of daily completions over the past 7 or 30 days, with your goal line. See recent practice activity against your goal.
Horizontal bar chart of remaining new sentences across all CEFR levels. Your current position highlighted.
Configurable daily notifications keep your streak alive. Choose when you want the app to remind you to practice.
CEFR level, sentence length, TTS voice, sentence speed, recording mode, dark mode, all adjustable per session.
Firebase-backed backup for decks and SRS progress. Your decks and SRS progress can be backed up and restored across devices. Anonymous authentication is supported.
Set your level to A1 or A2. The beginner course covers foundational vocab and everyday phrases.
All content is organised by CEFR level. Drill the patterns and vocabulary that actually come up in speaking assessments.
Echo Fluency was built for exactly this. You know many of the words already, but need more practice saying them.
Use short speaking sessions to practice everyday and workplace English.
A1 content includes practical phrases for common travel situations.
Use higher-level sentences and grammar as you move toward B2. The Roadmap shows which levels still have new content.
Use Echo Fluency for speaking practice, then review vocabulary and grammar in the same app. The core app is free, with an optional one-time purchase to remove ads.
⬇Download the Free AppFree core · Optional one-time purchase to remove ads · No subscription
These are current FluencyTool screens: the dashboard, speaking session, flashcards, statistics, and settings.





The 4.8 rating and 320+ reviews are for FluencyTool on Google Play overall, not for the English track alone.
Direct answers about the app, levels, review systems, and platform support.
The same FluencyTool app also includes a Japanese track, graded from JLPT N5 through N1.
Start with an Echo Fluency session, then use flashcards and grammar review to reinforce what you are learning.
⬇Download the Free App