GradePoint app, made by young iOS developer

Sorry if this is the wrong place for posting this, I'm very new to this website. My name is Atemnkeng Fontem, and I'm currently a senior in high school and I created this app to help solve problems I personally went through going through high school. With me app students can calculate their GPAs, add assignment reminders, and calculate their grades. I've shared my app locally and the students LOVED it, and i've gathered a lot of attention in my hometown because of it. I've even had random kids I've never spoke to before thank me for making the app. The reason I'm here is to help expand my app, and help more students stay on top of their academic grind. My core audience so far is teens and young adults ages 13-26, college or high school. Please leave any tips or advice I'm very new to managing an app/business, anything helps! Link to my product hunt app page: https://www.producthunt.com/posts/grade-point