Declining quality – Stocks Tracker:Real-time stock Review

I have owned this app for years and years and have mostly been satisfied. Some years back, I bought the paid version with the guarantee of no ads. Now there are ads, despite my purchase. Additionally, as I write, we are forty minutes into a normal day’s trading session, and some of the data is still wrong. This has been happening more and more frequently. (This has always happened for, say, the first 30 - 90 seconds, which is understandable. But forty minutes?)
Review by Swan917 on Stocks Tracker:Real-time stock.