I can only every strongly recommend that you use this pen without protective film.
Since the pressure sensitive pen leaves on stronger pressing correspondingly thicker strokes with apps like procreate or sketchbook, it is of course much more likely that you so will scratch.
For me an absolute no-go!
While there can be the pen precise use and he makes sketching and writing quite comfortable (though a stylus with rubber tip much worse is not MMN), but he can be less hold far angle than a pen with rubber tip, because the disc is not far can be tilted enough. That can not be too strongly inclined character movements. But this is not necessarily schlimm.Die Handball recognition work for me hardly or not, even though I have turned Multittasking on iPad and the pin from the iPad has been detected. Have I done something wrong or if it is connected to pin, I do not know.
Conclusion: The pen would have earned 4 stars (no scratches) and had (with scratches) get three, if one had pointed me at least clear that a protective film is indispensable. From other pens with rubber tips you're used to it, that you have nothing to worry about. And since adonitol - as I found out afterwards - has already received several complaints in order scratches - have a clear indication must be left anywhere on the site and especially on the box. Because that would diminish but the sales figures, you probably have little interest.
Very unfortunate, but a stylus, which leaves a very short time visible damage on such a high-quality device like an iPad, I can assign a star.