Hard to use, not fit for iPad screen size, poor import support for CN users 避坑：给所有需要PDF有声书的中文用户建议， 不要订阅，非常难用，操作逻辑混乱，不适配iPad屏幕，导入文件需要iTunes， 虽然有局域网导入可用，但是大文件传输不稳定。不支持本地文件和iCloud云盘文件; 进入预览后，不知道怎么回退到主页面，只能完全退出应用程序，但是当你再打开时，又会自动询问你是否打开刚刚阅读的文件，容易误操作，切换文件很难。
Can’t Easily Access Documents On Device No Way To Open Documents Stored On The Device.
Don’t bother Unless you can read Hangul don’t bother getting this program. I can’t even get a refund for a useless product?
Don’t fool yourself If you think you’re going to get what you had on Android with this app, you’re sadly mistaken. Don’t buy this app. You will be gravely disappointed.
Update Update please
Frustrating Awful app. Useless! Not compatible with iPad. I purchased this based on my experience with Android app. But ios version is truly useless.
Horrible IOS version I’m trying to get a refund. I paid for the pro version for android and love it, 4 stars. This version is a pathetic attempt to work with iOS, they need to revamp or take it off the App Store.
Piece of Junk I own this in an old android version. It is my go to pdf app. Does so many things and does them easily. This version basically does not work. Can’t seem to highlight leave readable annotations or even load pdf files. Don’t waste even 2 dollars on it. Rip off
Needs work I consider myself who usually understands computers and online stuff fairly well. I cannot get a file loaded onto this app. I try to download my files using the Google Drive and it gives me an error. It tells me I can sign in through the app browser. I try that and it does absolutely nothing. Just an all white screen. This app is useless as is.
Hard to learn I use this app for pdf cross stitch charts and I like being able to highlight specific symbols. But it’s hard to remember how to upload and download files back and forth.
From 58 saved reviews since 30 May 2011, all countries.
Share of the 42 negative reviews that mention it
“TTS DOES NOT WORK, DO NOT BUY I never leave reviews but when charged for a feature that doesn't work, tried to contact first but they don't respond, I have a…”
“Granted, I was only $1.99, but Apple needs to pull this out before anyone else pays them money for a bad app.”
“As soon as I downloaded this app, the message popped up 'This App may slow down your iPhone.”
“It tells me I can sign in through the app browser.”
“Needs work I consider myself who usually understands computers and online stuff fairly well.”
“Very bad update Will not open period after latest update, truly disappointed”
Share of the 14 positive reviews that mention it
“Love this reader now.”
“Once you turn off the on-screen menus, relax the gestures, and set it up for vertical scrolling, it's perfect for reading software dev PDF ebooks on an iPad …”
“It is pretty easy to learn how to use.”
A drop after an update usually means the update broke something.