I used ITrash a long time ago and switched to Appdelete two years ago because it was better. Because Appdelete development ceased, I was looking for an alternative again. As time goes, I gave ITrash another swing and see if it had been improved.
I ran Appdelete and ITrash when removing apps and compared results. ITrash found equally or more files. Especially more cache files were found, some very big in sized.
Back to ITrash and my old serial still worked. Good stuff.