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AirDrop for Files, Folders, Zip archives (Through the file manager side).
I've made a connection to the Mac via Sftp, and that works well. That said, I think AirDrop is a faster method and moving files, folders, and zip archives to the Mac would be a good candidate for its use. Texttastic already is a destination (Open in …) when receiving AirDrop.
Customer support service by UserEcho
Hello, you can already tap and hold a .zip file in Textastic for iPad/iPhone and choose "Open In…" which allows you to use AirDrop to send the file another iOS device or Mac.