Saturn and Jupiter are off in the morning sky now, but it’s that time of month and the three-day old Moon is a thin, spectacular crescent in the sunset sky. And Venus is still around, the third brightest object in the sky.
With a telescope or even a good binocular setup (mounted on a tripod for stability mainly), using much better optics than an iPhone has, you would see that Venus also displays a crescent, the same shape and oriented in the same direction as the Moon. It’s geometry.
Mercury’s out there too, lower down in the sunset sky, more difficult to see. Maybe I’ll give it a try in the next couple of days. (Guess what shape and orientation it displays through a telescope right now?)