How to use 돕다/도움이 되다?
How to translate sentence of that kind, using the words:
f.e. This app helps to improve your language skills.
And also how to use endings like 에게, 을/를 ih the sentences of that structure: Smth/smb helps smb to do smth.

이 앱은 자기의 언어 능력을 개선하는 것을 도와 줍니다. OR 이 앱은 자기의 언어 능력을 개선하는 데 도움이 됩니다.
What is correct? -_-'

Question

How to use 돕다/도움이 되다?
How to translate sentence of that kind, using the words: 
f.e. This app helps to improve your language skills. 
And also how to use endings like 에게, 을/를 ih the sentences of that structure: Smth/smb helps smb to do smth.

이 앱은 자기의 언어 능력을 개선하는 것을 도와 줍니다. OR 이 앱은 자기의 언어 능력을 개선하는 데 도움이 됩니다. 
What is correct? -_-'

Answer

In case of using "을", there is object so the transitive verb is used.
but "도움이 되다" is used as the intransitive verb.
So you can say two sentences both. :)

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