This app is made for beginner English learners who lack the basics.
Reading, listening, writing and speaking situational conversations, the app was designed to memorize all sentences.

Checklist for Microphone Error
1) Make sure your audio permissions are enabled
2) Check if the Google app is installed on the device
3) Make sure Google app and Google app's own audio (microphone) permission is activated

[Developer word]
Paid apps can be removed and used offline.

If you are a burdened paid app
Please use the free app.

To provide high quality content and maintain the server
The free app inevitably contains numerous ads.

There is no data exchange between paid and free apps.

[Access permission for using the app]
ORD RECORD_AUDIO-You need permission to recognize the voice.