Redpen: English Speaking

Redpen is an AI tutor app for English speaking practice. Say a sentence or type it, confirm your transcript, and get a red-pen review with specific grammar corrections and rule explanations. AI can make mistakes. SEE WHAT CHANGED Compare what you said with the corrected sentence. Red marks show the words to change, and explanations name the grammar rule. PRACTICE THE CORRECTION Say or type the corrected sentence in a drill. The drill compares transcript words; it does not grade pronunciation. KEEP A MISTAKE NOTEBOOK Revisit recurring grammar rules and practice them again. Rule explanations are available in Vietnamese and Spanish. Other native-language selections use English explanations. The app interface is in English. YOUR TRANSCRIPT, YOUR CHOICE Speech recognition runs on your iPhone where supported. If it is unavailable, use typed input. Review and confirm your transcript before…