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How do SoloLearn earn?
SoloLearn is a free app to download without any in-app purchases, ads nothing. So how do they earn or they are a team of professionals who do this as part-time... Your answers and logic is appreciated!
4 Answers
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As @luka said in the link.. If you're really interested you can mail sololearn..
That and the article were the intention of my answer..
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@Frost's answer contains the links to address your question. Please put some effort into digging. This question has been asked at least 10 times this month.
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@Frost This don't gives my answer!