Feeder is one such RSS reader available on Android, and it's completely free and open-source. For an open-source app, the interface is genuinely gorgeous, and the user experience is equally intuitive.

Discover 8 top open source Android apps for 2025 that protect your privacy, boost productivity, and offer powerful features for free.

To edit a PDF file on your Android for free, you can use the Adobe Acrobat Reader: Edit PDF app. While you can’t modify existing text or images with a free account, you can add new text ...

4. Media365 Book Reader It’s another e-book reading software that comes for free and is available for both the Android and iOS platforms.

The Chrome browser for Android now has a native PDF reader that lets you view documents directly in the app.

Make the most of your Android-based E Ink e-reader It’s not easy finding apps purpose-built for E Ink devices, considering that over 90% of the market is controlled by either Kindle or Kobo ...