Replay Video Editor by Stupeflix
https://appsto.re/us/ZSbyP.i
Bought the full Replay video app for iPad Air 2 and I'm quite happy with this app. (Was featured on the key note.) Overall it's great for making cool montage videos very quickly. It's easy to use with some cool customization features.
Be warned. The output quality is stuck at 480P with no option to change this.
I think it's fantastic but the output quality needs work. The app really needs options for video output quality. At least a 720P option. Because 480P doesn't look good even on my iPhone 5. Especially with most devices out there being equipped with greater than 480P screens.
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It would mostly be used for web browsing, emails and Skype. She also takes 100's of photos so I thought getting the better camera would be a bonus plus it has the option of the slow motion setting at 240fps while the others don't....
I highly recommend your mother takes one for a test drive at a store. In particular, have her take photos with the iPad. I argue the iPad Air 2 camera has its uses but they're limited. You'll know it when you have to actually take pictures with an iPad Air 2 in your hands. One thing to keep in mind is the iPad Air 2 because of its size doesn't function as a good quick point and shoot like an iPhone 4 or other mobile phone would.
Personally for me I rather take spot photos with my iPhone 5 and beam them (I miss iPhoto) to the iPad for storage. I also have a much better semi pro camera that I use in conjunction with the iPad when I'm out taking photographs as a hobby. Only I use the camera adapter to transfer all the photos and then clear the sd card afterward. I'm also prefer to review them on the iPad Air. I own the 128GB iPad Air now.