We know it takes a lot for someone to throw down money on a smartphone or tablet app. Most people would rather find a free alternative even if the app isn't as good. That's why we put together this list of apps that we wouldn't mind someone gifting us this holiday season. Some, like Spotify, are services, while others are extremely helpful tools or just flat out fun to use. So if you were ever thinking of buying someone an app as a gift, there's now a list for that.