This is a nice little app. It shows the date and times of equinoxes and solstices in a clean, intuitive and easy to use interface. You can select either local time or UTC, northern or southern hemisphere, for any year between 1492 and 3491 CE (why they chose those particular years is puzzling, but beside the point). If that's all you need, this does the job nicely. To the extent that I've verified it, the times are accurate to within a minute or two when compared with other reputable sources I use.
I have a couple of full-featured astro apps that surprisingly don't provide times of equinoxes and solstices, and this fills that gap nicely. That's all it claims to do, and it does it well. Worth every one of the 99 pennies I paid for it.