I'm using an iPad 3 with iOS 8, and typing on an apple bluetooth keyboard. Apostrophes are introduced in Lesson 8, but during the lesson, there are none - so instead of "I'll", I have to type "Ill". It's the same in the following lessons as well; no apostrophes. If I click 'Details', I can see them in the text of the lesson.
I'm learning the Colemak layout.

Thank you for very much for your bug report. I don't know why, but there where some characters missing in the colemak layout definition. I completed four characters for typing without shift key: '`[\ and one for typing with shift key: {.
I think there are still some characters missing for typing with Alt Gr and Alt Gr + Shift, we will add them later.
Could you please check if typing of an apostrophe now works for your case? Thank you.

All the best from Berlin,
Your Tipp10 Team

The ticket was marked as "resolved".