I just checked their app again and it doesnt work indeed, I'll take it off the list for now. There are other tools for creating charts like this one, or this oneif that's what you're looking for :). Source: about 3 years ago

If you don't like the process of making the cards, you could try exporting the words or sentences from kindle into Anki. I like to use clippings.io. These were some of my highlights from The Little Prince. Unsurprisngly there's also a DeepL add-on for Anki for mass translations. Source: over 1 year ago

I used my yesterday's evening to create a small JS script to remove automatically more than 90% of duplicate entries (at least for me :P). As far as I know, there isn't any working script/program to do this with the latest kindles or nothing maintained anymore (if there is, tell me). Also, clippings.io doesn't do anything with their promised "deduplication", so I created this makeshift way of more or less cleanly... Source: almost 2 years ago

I was originally "anti-Kindle" (well anti-Amazon tbh) and loyal to a proper paperback/hardback book. When I had to do lots of business travel I tried a Kindle (Voyage) and I'm fully converted. It's not just having all books on one device, it's that the battery last for ages, it's fairly robust (I treat it badly - thrown in travel bag etc) and it still survives...but, the huge thing for me was Wiki, Dictionary and... Source: almost 2 years ago

Are all tools /websites compatible such as clippings.io? Source: about 2 years ago

In the past I used clippings.io to import "My Clippings.txt" and then to export to Evernote, sadly the author went nuts and now charges in Russian gold. Source: about 2 years ago