I thank you @Frans Oosterholt talking this up. Linguaclick offers a free of commissions strategy, allowing teachers to keep all of their revenue & possibly provide courses at a lower cost, in contrast to commercial platforms that have large marketing costs. Funding from the EU improves credibility; In the end it comes down to choose between exposure and financial gains.
What are the opinions of others? What factors affect the platform you choose?
I am reading this blog What is Oracle Integration Cloud