10 paid apps on sale for free right now

As the year draws to a close, there's just enough time to squeeze in one last list of the day's best paid iPhone and iPad apps that are currently on sale for free. Just like 2016, these deals won't last much longer, so be sure to take advantage while you still can. These are paid iPhone and iPad apps that have been made available for free for a limited time by their developers. There is no way to tell how long they will be free. These sales could end an hour from now or a week from now — o