The free tier isn’t sufficient to decide whether pro will work at all

So I didn’t want to buy pro until I make sure it does the job unfortunately they crippled the free tier so effectively you can’t tell anything at all. Neither how well it works, or if it will do the job. In general from the tutorial and (all the disabled) options i could not try it seems it is only capable of linking based on categories meaning you have to go and manually create categories for everything before it is auto linked. Ideally it should be able to at least link based on the post title at minimum.