Hoidap247 - Hỏi Đáp Bài Tập is an educational and reference app available on the iPhone platform. Developed by Thu Ngo Quy, this app serves as a community for students in Vietnam to ask questions and get help with their homework across various subjects and grade levels.

Users can submit questions in subjects such as Mathematics, Physics, Chemistry, Biology, History, Geography, Literature, English, Technology, Computer Science, Civic Education, Music, and Fine Arts, from grade 1 to grade 12, completely free of charge.

The response time to questions is usually less than 10 minutes, and the quality of answers is well-controlled. In addition, Hoidap247.com has a team of experts, including specialized students and subject teachers, who provide assistance in solving exercises.

Users can ask questions by taking photos and uploading them or by using the image scanning feature. The system will automatically recognize and provide the most accurate or related questions for users to refer to.

Furthermore, users can participate in answering questions to receive valuable mobile phone top-up cards and special monthly gifts. Students have the opportunity to join the "Hăng Hái Team" to help other students and then have the chance to become a Mod - responsible for handling reports of violated content and receiving a complete online course package from Tuyensinh247.com worth nearly 30 million VND.

By joining the "Hăng Hái Team" and the Mod team of Hoidap247, users can interact and chat with other talented students across the country, gain recognition from others, and have the opportunity to achieve interesting and special titles on Hoidap247.

Install the "Hoidap247.com - Giải đáp bài tập" app on your phone to help yourself complete exercises from easy to difficult, anytime and anywhere.