Should you buy Reeder5 app for Bionic Reading?

hello everyone here apps which support bionic reading and one of the most popular apps in this category is called reader five um so this is the top app which supports that okay i'm just trying to figure out should you upgrade in reader 5 app so here it is newsreader it's number one in charts keep control of your news reading with reader uh and then here you have this bionic reading dimension of reading and this app is wars 4.99 and i'm just curious like uh is it worth to upgrading or not uh so that's basically basically it and then you can have this bionic reading section here so just interesting to see your opinions