Litchi on iTunes, one is $22 other is $27, difference?

[marklyn]

I see two Litchi software on iTunes... one is $22.99 and the other is $27.99 but I can't tell right off what is the difference between the two.
I have an iPad mini 4 and Mavic pro, but not sure which one I'd want to purchase. Help please.
(see attached)

 

[JeepDSL]

The $27.99 one is actually two apps:

 

[marklyn]

OK, so in my defense I saw that the more expensive one had two apps in it but then I wondered... why not just sell the Osmo app by itself? I thought there was more to it.
So then I guess I need the $22 app.

 

[JeepDSL]

Yep, unless you have an Osmo as well.