I recently received an email from “We Buy Apps” declaring that this company is a startup for the marketing of apps and would be interested in buying “Periodical”. If I were ready, I would be offered something that I would not refuse.
However the conditions on the website already look quite questionable:
You sell the full and exclusive rights to the app. This includes the source code, all artwork, all assets (images, texts etc.), icons, Android credentials, web presence (social media, website etc.) and other assets of the app that are required to maintain the functionality and promotion of the app. You are selling the right to publish the app and will not be able to publish the same source code again, even under a different app name.
In addition, there is no imprint on the website and there is no information at all who is responsible for the whole thing. That alone is reason enough to refrain from it. With a little research, you can quickly find other “companies” that use exactly the method, such as “apps buyout”.
In fact, this is a large-scale action by scammers who buy apps to generate advertising revenue. See also the report by The Verge at the end of 2018: