A few years back, I was playing Kerbal Space Program and had the need to convert back and forth between decimal degrees and degrees-minutes-seconds. I found some online tools to do it, but they were naive and forgot that floating point numbers are still kind of tricky on a computer. I wrote a post about that, and I also wrote a simple web form with Javascript to do it the right way. Anyway, for reasons, I deleted that code early this year and then, a couple months later, I started playing with KSP again.
Two days ago, I ran into the decimal degrees to DMS problem again, and still the free tools are doing it wrong. So this time, I wrote an app and sent it up to the App Store.
