FBReader vs ImageGlass

FBReader is an ebook reader for Windows, macOS, Linux, Android, and iOS. It opens formats including ePub, fb2, mobi, HTML, RTF, and plain text, as well as ePub books protected with Readium LCP. Its Book Network can synchronize collections, reading positions, bookmarks, and custom shelves across supported devices. Books in the network are stored in the user's Google Drive space, while metadata, covers, and reading positions are stored on FBReader servers.

Online OPDS book catalogues are supported on Android, Windows, macOS, and Linux; iOS support is planned. Android Premium adds PDF and comics support, Google and DeepL translation integration, and automatic reading aloud. The free iOS version is limited to ten books and disables online translators. FBReader offers free plans for desktop, Android, and iOS; Android Premium is $14.99 as a one-time purchase. The company says its current code is closed source.

ImageGlass is a desktop image viewer for browsing and viewing image files on Windows, macOS, and Linux. It supports more than 90 formats, including WEBP, GIF, SVG, PNG, JXL, HEIC, and RAW. Viewing tools include slideshows, thumbnails, color picking, hardware-accelerated rendering, and EXIF information through ExifGlass. Built-in edits cover rotation, flipping, cropping, lossless compression, and resizing. Pro adds an HDR Tone Mapper, free and margin panning, File Watcher, custom mouse clicks, and settings and feature locks. The app can associate external editing apps, use custom hotkeys with them, and accept extensions built with its SDK. ImageGlass says it does not scan image libraries for analytics or send images, filenames, or folder paths elsewhere. Classic is free. Pro Individual is $14.90, paid once purchase; Pro Team is $69, paid once purchase. Pro Business is $9,917 a year. The 14-day Business trial requires no account, online activation, or device lock for local license verification.