Pretty useful even if imperfect

This is overall a pretty useful and well-thought out presentation app. If you have Keynote slides or import them from PDF. The screen annotations are also really helpful especially on an iPad with an Apple Pencil.

Quirks:
- Cant erase annotations again.
- After switching the slide, annotations are permanent and cant be undone again (until stopping the presentation where they all disappear).
- No easy way to just add an empty page for extra illustrations on the fly.
- Cut&paste and copy&paste would be soooo useful for annotations.
- After stopping the presentation, all annotations are gone and cant be exported to pdf or so.

ace apertura about Keynote, v2.6.1