Thanks for sharing your opinion. Unfortunate you had to leave a 1 star review for a service you haven’t tried.
We are very clear about the cost of our service in the plugin description. We never ever claim the service is free, while the plugin obviously is. The plugin lets you configure and preview your app, if you like the app and the service, you can sign up at a cost. Serviceware like Mobiloud is perfectly in line with the WordPress policy, as you can read at the URL below, point nr.6
https://www.ads-software.com/plugins/about/guidelines/
Regarding your preview errors, there are 70 million WordPress sites with different configurations, themes and plugins, lots could go wrong. 99% of the times though, some additional configuration is required to have the app preview work for you. Something we can help with, at no cost. Also it’s worth remembering you need your site to be publicly available over the Internet for the preview to work (no localhost or local IP), this is because the app needs to be able to download the content and configuration from your site.
If you still need any help, we’re always available at [email protected]