How to Browse the Windows Store from Win8.1
To order an app, tap or click the app’s tile.
The Store takes you directly to the ordering screen for the app. For example, if you tap or click the tile for the Kindle app, you see the ordering page.
On the left, you see an overview of the app and you can get a more detailed feature list by clicking or tapping on the Show More link. Slide to the right, and you see the Ratings and Reviews. Even farther to the right, and you should see a release history (except for Microsoft’s own Metro apps, of course), list of permissions required, languages, and links to the manufacturer’s site.
The star rating shouldn’t impress you — it’s the accumulated wisdom of all the people who’ve bothered to rate the app. But the supported languages section, if there is one, may be of interest — and the permissions list is detailed and thorough. At the very least, you can vent your spleen on the Reviews page if the app doesn’t live up to your expectations.