As far as pure Chinese language dictionaries go, this is one of the best ones out there. It has a smart new interface and pulls from a larger variety of sources. It’s a good resource to have when you come across any ambiguities in the English definitions for Chinese characters or phrases. I often like to pop into this dictionary to verify that I understand the meaning of the characters that I’m using. They source this dictionary directly from Taiwan’s Ministry of Education. You can choose the phonetic system you want, but entries are in Traditional Chinese only.
Included in the app are also dictionaries for Taiwanese and Hakka, which are fun to reference if you happen to encounter those languages quite often (as happens in Taiwan).
Another really great thing about this dictionary is that you can get it for Android, iOS, as well as download it on Windows, OSX and even Linux.
Check out the online version here: https://www.moedict.tw/ There are links to the mobile apps at the top right of the page.