SPTrend which stands for “Stock Price Trend” is a shiny application that displays the price of a selected stock over the years (the earliest being 2013).
Advantages
This app is easy to use: the user only needs to know the symbol of a stock, type it in the app, select the date range, and see the trend of the stock price in the main panel.
It is trustworthy: it is based on data from google finance that is available online and can be verified independently.