Offline-first Android app

Private English practice, on your phone.

Record your voice, type a sentence, or scan English text from a photo. Get a correction, hear a natural alternative, repeat it, and save useful phrases for review.

Watch the demonstrations Request test access

Core practice runs entirely on-device and remains available without an internet connection after the initial setup.

English Voice Coach voice-practice screen ready to record — Voice, text, and photo practice in one focused screen.

On-device AICorrections run locally

No accountYour practice is stored on your phone

Offline after setupNo connection needed for core practice

The actual app

From a rough sentence to repeatable English.

These are real screens from the current Android build—not illustrations or interface mockups.

A correction, natural alternative, and explanation in English Voice Coach — **Correction and natural version**Compare what you said with a clearer, more natural phrase.

Repeat-practice result with a phrase match score — **Listen and repeat**Play the improved phrase, repeat it aloud, and use the match result as guidance.

English issue details with an explanation and example — **Understand the change**Open individual issues for a plain-language explanation and example.

Text-practice mode with a sentence ready to check — **Voice, text, or photo**Choose the input that fits the English moment you want to practice.

Saved phrase review organized by topic and common issues — **Review by topic**Return to saved phrases and focus on the ones that still need work.

Topic management and local-first information in English Voice Coach — **Keep practice organized**Create practical topics and keep your history available locally.

A short practice loop

Speak. Correct. Repeat. Review.

English Voice Coach is designed for focused practice rather than an open-ended chatbot conversation.

01
Practice

Record a phrase, type a sentence, or scan English text from a photo.
02
Improve

Review the correction, a natural alternative when useful, and a simple explanation.
03
Repeat

Listen to the improved phrase and say it back while it is still fresh.
04
Review

Save useful phrases by topic and return to the ones that need more practice.

Google Play closed test

Help test local AI on real Android phones.

The AI runs on the phone, so this test is most useful on modern hardware. A correction takes about 20 seconds on a top-end phone and may take longer on other devices.

Email to join the test See all four demos

In your email, include the Google account address connected to your Play Store. It will be used only to authorize closed-test access. Do not post it publicly.

Private by design

Your practice is meant to stay on your phone.

The app uses local files for speech recognition, grammar help, and voice playback. Internet access is needed to download or repair those files and when you explicitly choose to send a generated-feedback report.

No cloud practice service

There is no cloud transcription, cloud grammar checking, or cloud photo upload in the current app.

No account or advertising

The current app has no account login, advertising SDK, or third-party analytics SDK.

Local history and controls

Topics, corrections, and saved phrases are stored locally, with controls in Settings to remove local app data.

Read the complete Privacy Policy

See it before you test it

Four short demonstrations. No marketing mystery.

Watch the demonstrations