James O'Donoghue is a planetary scientist with JAXA, Japan's space agency. He used to work at NASA and has published papers on Saturn's atmosphere and rings. He knows a thing or two about our solar system's most gloriously ringed planet.
While Apple did a "nice job capturing the golden yellow shades of Saturn's cloud tops," it failed a major test by exaggerating Saturn's tilt way past 26.7 degrees. O'Donoghue named Apple's effort the overall winner for atmosphere, but it didn't quite top the competition.
The underdog winner of the scientist's informal contest was WhatsApp, thanks to the emoji designer's dead-on tilt and faithful rendition of the planet's rings.