"SUCKS!" it says, followed by one star. "Garbage. Needs major improvements, very slow app," says another, with an equally low rating. "Not great. Meh, and not accurate," says a third. These are extracts from user reviews of an actual sports app randomly selected on Google Play. Needless to say, it will take considerable work for the developer in question to get enough good feedback to push the rants and diatribes out of the way.
Some people download apps when they want to have some fun. Others do it when they need something that will help them solve a particular problem. Me? I tend to download apps during emergencies, like when my kids are screaming in a public place.
The problem with bad reviews is they have a way of staying around online forever, which is why developers will need to be sure their mobile apps perform as expected, based on a recent survey from Apigee.