Expensive but worth it

While the Collins dictionary app is about the same price as you can get the hardcover dictionary on amazon it is well worth having for the serious student and translator. I own both and have not been able to discern any real difference in terms of word and usage content. The app also has links to Wiki content for
most ,if not all entries, which is a big plus. While I grew up and spent the vast majority of my career in foreign languages long before the information revolution, I embrace this technology.

jaydub1948 about Collins Spanish Dictionary