I hate to negate someone’s good efforts, which this is. However, in trying to be helpful in the users niche, this is app is the usual info type stuff published everywhere. It’s nothing special, just a different GUI, which takes time to access specific info. It’s portrait view only. Most practically needed is a landscape view. I immediately deleted it as too basic.
IMO, there are a number of inexpensive apps, ~$10 month, which gives you everything you need to cover intermediate level stock and market data, segregated into areas to make money with them and keep track of it all.
Two of the best, easily usable which have been around for a long time are Stocksmaster and Stockstracker. They’ve slacked on customer service in recent years, which you’ll likely not need, but the good information is there, easy to use.