ReaderStar is described as 'As Google Reader is dying, I needed a tool to retrieve all my starred and shared items. Exporting through Google Takeout was not enough, it exported files that I could not open anywhere, and was cumbersome' and is an app in the News & Books category. There are more than 100 alternatives to ReaderStar for a variety of platforms, including Online / Web-based, Windows, Android, Mac and iPhone. The best alternative is Feedly, which is free. Other great apps like ReaderStar are Inoreader (Freemium), QuiteRSS (Free, Open Source), Tiny Tiny RSS (Free, Open Source) and Flipboard (Free).
Feedly is a better way to organize, read and share the content of your favorite sites. It weaves the content from the RSS feeds of your favorite websites into a fun magazine-like experience and provides seamless integration with social networks.
Discover, share and read the best on the web. With Inoreader, content comes to you, the minute it's available. Subscribe to RSS Feeds, Blogs, Podcasts, Twitter searches, Facebook pages, even Email Newsletters! Get unfiltered news feeds or filter them to your liking.
Tiny Tiny RSS is an open source web-based news feed (RSS/Atom) reader and aggregator, designed to allow you to read news from any location, while feeling as close to a real desktop application as possible.
Flipboard is a fast, beautiful way to flip through the news, photos and updates your friends are sharing on Facebook and Twitter. - See your social media in a magazine layout that is easy to scan and fun to read.
NewsBlur is a personal news reader that brings people together to talk about the world. It shows you the original site and allows you to read stories directly off the site while keeping track of what you read. It also filters and highlights stories you like and dislike.
Netvibes is a multi-lingual Ajax-based personalized start page or personal web portal much like Pageflakes, My Yahoo!, iGoogle, and Microsoft Live. It is organized into tabs, with each tab containing user-defined modules.