Active Voice To Passive Voice is an Android application developed by English Grammar Tutorial. It is an effective app for learning English grammar, specifically Active to Passive voice conversion. While there are many similar apps on the Play Store, this app stands out with its unique focus on Active to Passive voice conversion.

The app offers a comprehensive guide from beginner to advanced level, with numerous examples on Passive voice. It also includes lessons on Direct Speech to Indirect Speech conversion, making it a simple way to learn Indirect Narration. The app covers various topics, including Direct and Indirect Speech, Passive Voice, English Tenses, Tense Chart, Present Tense, Past Tense, and Future Tense, among others.