CNBC Select reviewed investing apps that cover a range of users' investment styles, from micro-investing to active stock trading.

This uncomplicated Android app includes multiple features, over 3,000 servers in 100 countries, and fast connection speeds. Surfshark offers a lot of bang for your buck.

The best online trading platforms for day trading offer low costs, fast execution and free quality research. Fidelity, Interactive Brokers, Schwab, Webull and Firstrade make our list.