Amazon spent a lot of time advertising that devs get "70% of the sale price or 20% of the list price, whichever is greater".
Consequently, many people are under the impression that when the download the free app of the day, they are doing the devs a favor and earning them 20% of their list price, and I have absolutely seen people in public forums run around advertising when an app from a dev they like is a free-app-of-the-day, telling people to help support said developer by downloading the app even if they don't really want it because said developer will receive some financial support from the download.
The fact that all of the above is bullshit and that Amazon has been secretly negotiating that down to 0% of the list price with the admonition that the developers cannot tell anyone they aren't getting the 20% everyone thinks they're getting tends to indicate that Amazon is aware of this confusion and exploiting it for their own gain.
Consequently, many people are under the impression that when the download the free app of the day, they are doing the devs a favor and earning them 20% of their list price, and I have absolutely seen people in public forums run around advertising when an app from a dev they like is a free-app-of-the-day, telling people to help support said developer by downloading the app even if they don't really want it because said developer will receive some financial support from the download.
The fact that all of the above is bullshit and that Amazon has been secretly negotiating that down to 0% of the list price with the admonition that the developers cannot tell anyone they aren't getting the 20% everyone thinks they're getting tends to indicate that Amazon is aware of this confusion and exploiting it for their own gain.