Adobe Digital Editions 4+

I had to download this to read ebook from my local library and it’s one of the worse apps I have ever used in my life. I have an iPhone XS Max and this app is not maximized for this phone or any phone models with the black bar at the top, because the first time of the page is right where the black bar is which means you can’t read at least 3-4 words every page! The app also loves to freeze out or just glitch out randomly, especially when you switch out of it and come back in or change screen orientation. I also like continuous scrolling for reading instead of having to swipe because it’s a hassle, not to mention if you are reading in a dark/dim space it has to load every page (which takes a bit) and the loading screen is WHITE while I’m reading in dark mode! I honestly can’t believe this is a published app! I wish I could use the books app right on my iPhone for the library materials but sadly I can’t. This is really a pity and I hope adobe fixes this disaster soon so people can actually use it to read or study.

There are problems that me and all of my classmates mentioned while we were using this app. The main problem is that it lags and stops a lot if you are using it offline. When you flip through pages too much, it starts to freeze for a while before you can flip the pages again. So when we were looking for a certain page in our ebook, the app lagged every 10-15 seconds. This happens less frequently with internet connection, but it can still happen. Especially if the app has not loaded certain parts of the book yet.
Another problem is that there isn't a simpler way to find a certain page. Even though the app has a scroller that helps you jump through the pages, it doesn't indicate which page you're going to flip to. If there's a way you can do this in the future, that would be good as well.
TL;DR I don't recommend this app for anyone who wants to use this for ebooks. Whether for educational or recreational purposes. It's better if you find an app that can do so much better until Adobe fixes these problems. It's not worth it.

I just purchased an eBook and it required me to download this app to read it. I spent $40 on it. I want to share my extreme dissatisfaction with the quality of the eBook format. It was ridiculously challenging to download and I spent nearly 40 minutes trying to figure out how to download it. I finally figured out what the issue was by looking at the comments on the IOS reviews page from several others that had similar issues. The trouble was that you cannot use safari to download it so I had to get an all new internet browser to download it. Then once it was finally downloaded I was incredibly disappointed in the quality of the e-reader itself. The content in the book is great. I know because I have the paperback version. But I was looking for an electronic version that I could take on the road with me and easily access when away from home. When you read the book in the eBook format it looks awful. Words are cut off, you can't even finish reading complete sentences because the formatting is all wonky. This app is absolutely is ridiculous. The quality is so poor it is completely unreadable.