Stroke orders for all characters in duolingo Chinese course
The hellochinese iOS app added an add-on section which has the stroke order information for all the characters in duolingo Chinese course. And you can also practice handwriting every character using its stroke recognition feature.
If this were to be included for Far East Asian languages, like Chinese and Japanese, that emphasize stroke-order in characters, that would be great!
In case you want to try the writing practice, along with writing and productive learning, try LingoDeer. The structure is fixated, and all Chinese, Japanese and Korean courses are longer than Duolingo's, but they are all awesome! You can also "Test Out" to skip ahead (can only be done from very bottom).