After the last update, it lost several features, and the developer has no intention of restoring them, despite the code being simple. I contacted him, and he's quite unfriendly.

EDIT: after this review, Sam, the developer of Stickxy, minimarks, and Kanbase, decided to close my account: "Unfortunately, due to your abuse of our support channel earlier, your access to the app has been terminated." I've only asked him via email about missing features in the new version, nothing more...

EDIT (2): I've found a much better and more complete alternative: raindrop.io. The free version is better than minimarks (which only has a paid version). Finally, the unjustified ban worked out well for me.