There are numerous other competent SDR apps, from simple to those having a moderately high learning curve.
A couple of possible suggestions to start....
For Windows anyway, SDR# tends to be a popular favorite for the RTL-SDR crowd. I find it has some of the best SDR noise cancelling solutions as well.
https://airspy.com/download/The SDR# Big Book (linked on the same page) is also a pretty good reference guide for the software.
SDR++ is popular if wanting something moderately straightforward without hundreds of various configuration options. Another nice feature is it being available for multiple OS platforms.
https://www.sdrpp.org/