Mac: Apple is well known for its overbearing rules and regulations about what can be sold in its stores. However, as How-To Geek reminds us, that doesn't mean either of Apple's app stores aren't filled with garbage. The Mac App Store is no exception.
How-To Geek digs into a bunch of different examples here, which includes search results for Microsoft's suite of office apps, PDF viewers and just about every other remotely popular type of application out there. In nearly every case, the Mac App Store has several overpriced imitation apps that do next to nothing. Usually they're either a pack of templates or a pack of supposed tutorials. Nearly every one of these apps uses an icon made to look identical to the actual app you're searching for, which makes it easy for someone who's not computer savvy to accidentally download an app they can't even use.
This type of scam app has been around since pretty much the dawn of software, but considering that a lot of people feel safe purchasing apps from the Mac App Store, it's worth a reminder here. Just because an app is in the Mac App Store doesn't mean it's legit.
Don't Be Fooled: The Mac App Store is Full of Scam [How-To Geek]