The Epipes iOS app is a great way to make highland/borderpipes/smallpipes sounds with WARBL. Especially with the forthcoming demise of Universal Piper, EPipes is a simple and reliable option. You'll need to change a few of the default settings, and I put together a PDF (below) outlining those changes. Note that EPipes doesn't respond to MIDI pitchbend messages, so the WARBL slide/vibrato/expression settings won't have an effect.
https://warbl.xyz/Using%20WARBL%20with% ... Xgaj5f7_Vc
EPipes iOS app settings
EPipes iOS app settings
Andrew Mowry
info@warbl.xyz
info@warbl.xyz