★★☆☆☆ In fact it's a good tool to study math even though there is not available in Japanese like in PC version
投稿者:Vegeta Gamer23
★★★☆☆ After updating, it stopped working.
投稿者:HA+L K
★★★★★ I'm a adult Japanese. I relearn high school Math. Whenever I have some free time, I watch a lesson movie, and answer questions. It's very useful. I hear Salman's voice very clear, His plain English helps me to understand Mathematical ideas.