Is there some tool that can aggregate RSS feeds and send it once a day to Kindle?
I tried Kindle4RSS, this works really cool, but automatic sending is only in paid version. I have circa 3 articles in month and paying 2$/month is quite expensive for it. I also don't need this cool article collection (all articles in one file), It could be simpler - articles one by one.
I also tried to find project on IFTTT, but without success.
Note: I'm searhing for something online, not app.