Installable Web-App (Add to home screen), work on any platform including both desktop and mobile devices.
Save articles in one click.
Group related feeds.
Tags are perfect for saving related articles.
Fetch full-text of an article for feeds that only offer partial-content.
Email articles as eBooks. Pushes to Kindle automatically and on schedule.
Read RSS directly on your E-Ink device's Web Browser.
A carefully designed shortcut system that completely eliminates the need for a mouse.
Import sources from other RSS readers.
Feed items can be automatically marked as read as you scroll through their titles.
Articles can be sorted from oldest to newest.
Individual display settings for each feeds.
A dozen light themes and dark themes with automatic switching.
... Furthermore, I reiterate that your platform is the state of the art among feed readers I know.
Let me share two examples that made me marvel at how advanced web applications have become: One is QiReader, a modern and smooth Progressive Web App (PWA) for reading. It shows that browsers are capable of doing more and more.
The software experience, including its features and user experience, is already excellent. Although there are many other readers out there, I still believe Qi Reader offers the best experience. -- I'm a devoted advocate for Web apps.
I am very much enjoying Qi Reader, works great online on all platforms, and the send to kindle functionality is just what I needed. I tried various RSS readers with send to kindle functionality, but this one is #1. Keep up the good work!