I'd like to see a collection of monster/animal sounds as one soundset. There is a shortage of monster sounds in particular. One would have to purchase numerous soundsets to have a reasonable creative pallet to work with. I currently have fifteen sets and I find it lacking. Please don't suggest a subscription. I detest paying continuously for something. The 99cent app (RPG Fantasy) often has more utility than the $50.00 I've invested in Syrinscape.
Well, what monster/animal sounds do you wish for? And what is in your library of bought soundsets that you're missing something? From what i have seen from your suggested app, it doesn't have a really extensive library of monster sounds either - so i assume you are looking for something in particular? Maybe there can be suggestions on what soundset(s) could be added to make you happy with what you have then.
Indeed, I think a wide variety of monsters could be covered in 6-10 sets (maybe less, depending on your gaming needs) if you're strapped for cash or don't like paying a subscription.
Bugbear battle covers nearly any monstrous humanoid or just grumpy bandit.
Dragon battle covers anything toothy or flying (big or small).
Undead battle covers your zombies, etc.
Clockwork entities for constructs.
Tiger battle for anything toothy and claw-y.
Giant rat for vermin/small nasty things.
Hell swarm for insects.
Possibly goblin or kobolds for small humanoids.
Possibly tavern brawl for unarmed combat.
Possibly mouth horror for really weird things.
Other sets have more specific sounds and add richness and depth, but the above 10 could cover a wide variety of monsters.
maybe more like creature type / creature compendiums maybe
I made my own campaigns to find stuff more easy.
I've got many generic campaigns I've made up for locating things by theme:
Just scroll down there, I've got monsters all in one place, locales in another, etc.
What types specifically are you looking for? I am not yet proficient in the SoundSet Creator, but something like that could possibly be made and shared as community content (if someone is more proficient than I and interested in doing that).