Apple Pencil support

no

https://www.apple.com/apple-pencil/

Compatible with

• iPad Air (3rd generation)
• iPad mini (5th generation)
• iPad (6th and 7th generation)
• iPad Pro 12.9-inch (1st and 2nd generation)
• iPad Pro 10.5-inch
• iPad Pro 9.7-inch

other std. capacitive touch stylus would work fine though they would work on all capacitive touch displays

https://www.google.com/search?sxsrf=ALeKk01J9wZbPrQOrA4L5nJokpG4o6umtw%3A1586431433721&ei=yQWPXq7QK7ue1fAPzqKx8AE&q=capacitive+touch+stylus+&oq=capacitive+touch+stylus+&gs_lcp=CgZwc3ktYWIQAzIFCAAQywEyBQgAEMsBMgYIABAWEB4yBggAEBYQHjIGCAAQFhAeMgYIABAWEB4yBggAEBYQHjIGCAAQFhAeMgYIABAWEB4yBggAEBYQHjoECCMQJzoCCAA6BggAEAcQHjoHCCMQ6gIQJ0oMCBcSCDExLTY5Zzg2SgoIGBIGMTEtNWcxULJ8WMSGAWDeiAFoAnAAeASAAYECiAHHDJIBBjExLjEuM5gBAKABAaABAqoBB2d3cy13aXqwAQo&sclient=psy-ab&ved=0ahUKEwju2MTQndvoAhU7TxUIHU5RDB4Q4dUDCAw&uact=5

No.

It never did.

No Apple Pencil works with any iPad made before late 2015.

This includes your iPad Air 2.

Older iPads are missing the necessary screen layer hardware that is needed for the Apple Pencil to interact with the iPad’s screen.

You will need to seek out a third party alternative.