Bug reports, requests, and anything else go here.
This is made by one person and answered by one person, so a reply may take a few days. Some messages may not get one, but every report is read.
These three make it far more likely the cause can be found.
The Kakesu version is on the app's App Store page. A screenshot of the screen where it happens helps too.
The URLs and notes you save are your browsing history, plainly. Unless they are needed to look into something, please do not send them. When sending a screenshot, do check that nothing you would rather keep private is in it. You will never be asked what any of them contain.
Kakesu is a tool for tossing things in and digging them back out — that alone. So accounts, reading other people's bookmarks, rankings, and feeds are not going to be built. That was decided from the start.
But anything that would make digging things out easier is very welcome. Send it over.