The Apple device owners. A personal touch can make a big difference in communication, showing a little style with nice penmanship, artistic skill, or perhaps humor with a sketch. While drawings can be made in other apps and shared as attachments, being able to do it all from one app is much more convenient.
Apple Messages works Google has made an effort to translate iMessages to Android devices more accurately recently, so that helps.
Apple's Messages app for the iPhone rotated into landscape mode. Once in landscape, a drawing button appears on the keyboard at the bottom-right, and tapping it opens a canvas. Then an image or a handwritten message can be drawn on the screen with a finger. Rotating back to portrait when finished allows the option to send the drawing as usual.
iMessage Drawing Options
When the iPhone's Messages app is switched to drawing mode, a strip at the bottom of the screen shows several preset cursive text snippets, including 'hello,' 'thank you,' happy birthday,' and more. In total, seven perfectly penned scripts are ready for instant use or as a way to get started. Tapping any of these will load them into the canvas where more drawings can be added to further personalize the message. The bottom also shows previous drawings that have been sent. If the list gets too long, some can be deleted by pressing and holding until the drawings shake. Tapping the 'X' that appears on a drawing will delete it from the list.
Editing options are limited to just being able to tap undo and there's no option to erase, so it's best to keep drawings simple unless looking for a challenge. If a more full-featured artistic option is needed, another app should be used instead and then the drawing shared with the Messages app. The iPhone's Notes app has a pretty nice set of drawing tools but there are plenty of creative paint and drawing apps on the App Store that offer more. With the ability to add custom or preset drawings and hand-written text, it's easy to make a special message or convey an idea that's best shown as an image when sending an iMessage on an iPhone.
Source: Apple