Getting Lichess to run on slightly outdated iOS

My iPad is somewhat outdated, runs on iOS 9.3.5, but it's still fine for the limited amount of time and very basic stuff I use it for. The only thing that would be nice is if I had Lichess running on it. Is there any way to achieve that?

Can you install a recent chrome or firefox on it? That should do.

omg, why do I feel like I just posted an incredibly stupid question...;-)

thanks