Rigel is described as 'is the App that collects articles and other contents, like videos, about history, science, art, literature and more topics from the most renown magazines and blogs across the internet. But Rigel IS NOT YANA (Yet Another News Aggregator)!' and is an app in the News & Books category. There are more than 100 alternatives to Rigel for a variety of platforms, including Online / Web-based, Android, iPhone, Windows and iPad. The best alternative is Inoreader, which is free. Other great apps like Rigel are Flipboard (Free), NewsBlur (Freemium, Open Source), Feedbro (Free) and Reeder (Paid).
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.
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.