Dumb Questions - How to view data?

There is an incredible amount of information about how the API can be used in a lot of different ways - what about for simple setups? It looks like there is a website that I can view all the data, but are there any other apps (without having HomeAssistant or anything else) that can be used?

I plan on setting up HA in my new house in 6 months, but want to play around with air quality and ventilation as I consider installing an ERV. Also nervous that you only get 1 year of website access?

Any guidance would be greatly appreciated! Note - I just ordered the kit.