The app allows you to save money through advertisements shown intermittently as you browse the Internet, by installing a third-party application that allows the user to seamlessly browse the Internet while allowing companies to display advertisements during times of inactivity.
Does it make sense to put a comma before the by in extra long sentences like the one above? Also, is it necessary or not?
The whole thing is very confusing. To start with, I don't know what you mean by saving money "through advertisements". The connection between the part before the comma and the part after is also unclear; for example, it is unclear whether "The app" and "a third-party application" are the same thing or different things, and, if different, what the connection between them might be.
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The whole thing is very confusing. To start with, I don't know what you mean by saving money "through advertisements". The connection between the part before the comma and the part after is also unclear; for example, it is unclear whether "The app" and "a third-party application" are the same thing or different things, and, if different, what the connection between them might be.