Cool Reader - Fast and small cross-platform eBook reader for desktops and handheld devices
FYI - Find your documents, like magic 🔮
FBReader - FBReader is an e-book reader for various platforms. Features:
Findo - Your smart search 🔍 assistant across personal cloud ☁️
iReader - iReader is one of the most accomplished ways to read the books right from your smartphones.
Vaultedge - Access all your documents in one place.