[devit]

Why not use a flat rate Spotify-like model?

Paying per article seems to have the big issue that you actually have to think whether you to want to pay or not and might feel cheated if the article is not as good (they offer refunds, but there must be a limit or catch or everyone would just refund everything).

[Freak_NL]

Blendle has no flat-rate, but if you buy several articles from a single issue of a publication, Blendle will simply give you access to the complete issue (e.g., today's New York Times) when the amount you paid for the separate articles exceeds the cost of the complete issue.