Alltrails goes on sale a couple times a year. So no rush unless you are sure you'll need it.
Even though I think the app is pretty good, I find it very distasteful that they are changing so much for essentially customer reviews. I wouldn't pay $15 to see Expedia reviews on hotels and that's also pretty useful. I paid once but won't going forward because either they need to compensate those who contribute their reviews or charge a small nominal amount to just run the servers. Unfortunately they are the incumbent and the start-ups are having trouble getting caught up.