My wife has her own kindle but rarely reads anything on it.
Our library buys anything she wants to read which is not in their collection and is in print.
Usually, one of the librarians is the next name on the list after she reads it.
Since she usually get her book recommendations from print reviews that app would not save much effort.
Overdrive claims to be an ebook distributor and lists some of the publishers they distribute for on their homepage. Perhaps only the publishers they distribute are on their site and cloud library is used for the rest of their ebooks.
It is different here from NYPL. We are only 22k people in town. The library is well funded, and well staffed. It has a full calendar of events from book groups to concerts, to lectures, and topical events. It allows people in neighboring towns to pay to use the library. It is very much a part of the community.
Instead of FOL sales they give away deacquisitioned books to the public.
Way back in the 1960s when I worked for NYPL, the branch libraries were not allowed to give away or sell deacquisitioned books. All had to be shipped to 42nd street where they were placed in Sanitation Department trucks.
I would appropriate some of the childrens books and make them available to groups who worked with poor kids. There was still a lot of joy to be shared with those kids.
Literally thousands of books were transported to the dump.
The research library was privately owned, and they would sell books, deacessioned and donated to staff for 10 cents a paperback, or 25 cents hard cover.
Under the PL 480 program undeveloped countries received food aid in return for books published in their countries. Various depository libraries received two copies of every book published in countries like India.
NYPL only kept one copy and sold the others to staff. The only defect was a PL 480 stamp. My first book sales were some of those PL 480 Food for Peace books.