Is it okay to use an iphone as an e-reader for a textbook?
Added (1). I rented a chemistry e-book on amazon for one of my classes but I'm not able to open it online and only allowed to read it in the kindle app. My mac is too old to install the kindle app so i can only read the book on my phone.
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Is it okay to use an iphone as an e-reader for a textbook?