This workshop will go through a typical workflow to set up a project in QGIS and using Input mobile app to collect data.
For iPhone and iPad devices you need to follow instructions from here (TestFlight app): https://testflight.apple.com/join/JO5EIywn
For more information, see: https://www.lutraconsulting.co.uk/blog/2019/09/10/input-on-ios/