When comparing Cortana vs Wox, the Slant community recommends Wox for most people. In the question“What are the best power user tools for Windows?” Wox is ranked 10th while Cortana is ranked 46th. The most important reason people chose Wox is:
There are [themes](https://www.getwox.com/theme/builder) available for the app as well as [plugins](https://www.getwox.com/plugin) both of witch allow the user to customize the launcher to their liking.
Ranked in these QuestionsQuestion Ranking
Pro Can recognize music
You can ask Cortana what music is playing and she will attempt to identify it.
Pro Will let you know when artists you're interested in play in your area
Cortana monitors your Bing search history, social network actions, music played, etc to find out what are your favorite artists and will let you know if they plan to play in your area.
Pro Extensible with addons
Addons such as choclatey and Clipboard are some of the more popular ones, but it stands to reason that just about anything will be extensible if someone writes a plugin in order to perform that specific function.
Pro Easily search the web
There is a built in web search function in the Wox launcher that allows users to easily search sites like IMDB or Wikipedia by prefixing their searches with keywords such as "wiki".
Pro Really fast
Faster than most other launchers.
Con Functionality is limited on non-Windows devices
While Cortana is available on Android and iOS, certain features on those operating systems are either limited or non-existant. For example, there's no hands-free voice activation on iOS, and on Android it's only available on the homescreen and nowhere else, etc.
Con UI flicker
The UI flickers when using the app and does not have any foreseeable fix other than speeding the app up, which did not completely alleviate the issue.