Sound Effects for Apps

So I was looking for something like this, I think this app is great in terms of sound (it’s Waldo &Friends app)

https://www.youtube.com/watch?v=XXf7U1VymXQ

Playing the app the sound is really good.

So anyone knows any good sites for professional sound effects? Free or paid, it’s ok either way.
Thanks in advance.

I saw this on the first result on google : https://www.freesound.org/browse/tags/sound-effects/

This one is crazy good and crazy cheap:

https://www.assetstore.unity3d.com/en/#!/content/17256

Yes, it’s a unity asset, but you don’t have to use it in Unity. They’re standard .wav files.

Hear a demo here: https://www.youtube.com/watch?v=oWAaGkZNIBE

I’m not affiliated with these guys at all, but I own this library.

Thanks, I’ve seen the video and the sounds are really cool.