As promised in our announcement for the new simplified course, we have added an ability to switch between the traditional and simplified courses. You can access it from the application settings page.
We have more details on how it works in our course switching documentation page. As stated there, it is best to pick one course and stick with it long term. Unsure which course to pick? You can make a thread in this forum about your goals and motivations for learning Chinese and we can help advise.
Next up on our list are various improvements to the review and lesson quizzes and surfacing more data to you on the dashboard to give you an idea of your progress.
The course selection modal says “different pinyin, slightly different visual form, etc) will be later re-introduced as lessons, so you will lose some progress.”
If I switch once and then switch back will I lose any progress?
The skip status of items seems to be controlled independently between the simplified and traditional course. My guess is that HanziHero keeps two copies and that when I switch the e.g. Traditional copy is frozen and I suddenly gain access to the Simplified version. Hence if I switch back it would be unfrozen and my progress would remain.
You’d be right the only caveat is that items which are the same in both component composition, meaning are synced. So if, for example, you review 半 and then switch courses, whatever progress you made on 半 will be reflected in the other course, and vice versa if you switch back.