"Don't even think about it. Just transpose it."
The answer is usually singability, playability or creativity, or a combination of those factors.
Guitar chords and ukulele chords have more in common than most people realize. An experienced guitar accompanist actually knows plenty about ukulele chords ... though he or she may be completely unaware.
Key Switch allows you to instantly transpose any ukulele chord chart to a guitar perspective—this allows you to 'think guitar' while learning to play ukulele. Read more about playing ukulele chords ... from guitar to ukulele! And visa versa, if you play uke and want to venture into guitar, you'll have a lot of applied knowledge. Either way the secret is a simple transposition, and Key Switch can help.
With the recent resurgence of interest in ukulele, sooner or later, a guitarist is likely to find an ukulele in their hands. If this happens to you, you'll easily be able to leverage your guitar intelligence toward instantly understanding the Ukulele.