The only platform works for us!
My son has been learning Mandarin using Lingobus over two years. We have tried other learning platforms and hit the walls many times until we found lingobus. This is a great platform. The teachers are very professional. More importantly my son enjoys his lessons and love to chat with his teacher. I also highly recommend the Pinyin package. It’s an additional small package. It does not cost much but it benefits your learner a lot!