Copying audio files from Zoom H2n/similar to iPhone?

Our drummer is currently in the Philippines and we're not sure when he's coming back. This is inconvenient, but we'd still prefer to capture some of his kit drums on a cheap field recorder than get someone local to do it. So...
He has an iPhone 7. He's previously got some good basic recordings off a Zoom H2n, thought we'd need to provide him with one of those, or similar. He's not technical, so it needs to be fairly simple. I was looking at options like the IQ7...

...but I'm not sure how that would compare to a dedicated recorder like the H2n. If he got one of those though, I'm not sure of the best way to transfer recordings to his iPhone to send them to us online...? He doesn't have a computer/laptop. I'm not sure if you can copy WAVs off a micro-SD card from an H2n straight onto an iPhone via a simple adaptor like this, or if it would be easier to connect them up with an audio cable, and whether that would make much difference to the audio quality under the circumstances. (We want to include stuff on final tracks, but it can be lo-fi or whatever.) Any thoughts or ideas welcome...!
He has an iPhone 7. He's previously got some good basic recordings off a Zoom H2n, thought we'd need to provide him with one of those, or similar. He's not technical, so it needs to be fairly simple. I was looking at options like the IQ7...

...but I'm not sure how that would compare to a dedicated recorder like the H2n. If he got one of those though, I'm not sure of the best way to transfer recordings to his iPhone to send them to us online...? He doesn't have a computer/laptop. I'm not sure if you can copy WAVs off a micro-SD card from an H2n straight onto an iPhone via a simple adaptor like this, or if it would be easier to connect them up with an audio cable, and whether that would make much difference to the audio quality under the circumstances. (We want to include stuff on final tracks, but it can be lo-fi or whatever.) Any thoughts or ideas welcome...!