I’m seeing a lot of conflicting posts in the forum regarding OTG for the Spark. Is it supported? Where can I buy a cable? (iOS)

Thanks

I seems the RC surely supports OTG, your phone (device) might not. I'm waiting for my OTG to arrive tomorrow, hope it all goes well.

Supported by DJI? No
Is it working? Yes
On iOs it is said, you don't need it, but it is available
Where to buy?  Amazon or Ebay, p.ex

Flying today (Poland, CE) - OTG works fine (4.2.12, Android 7, Redmi 4X)