... which doesn't really make me feel comfortable.

I was a happy user of both Pixa and Delibar, but development slowed to a crawl or stopped completely: Delibar never received a Retina update and is confirmed EOL ("…not enough buyers!") for multiple years now, but this has not stopped the guys from keep selling it on their own page or including it in paid bundles. Pixa had some bugfixes but stopped receiving notable updates following the argument, that it is feature complete and everything else will come in 2.0 (which has not happened for two years now, probably because of Bear's development).

I perfectly understand, that a small team needs to focus its ressources on sustaining products, and I guess both Delibar's and Pixa's niches were too small. As a customer, however, I invested not only money but also my time when using the product. After becoming aware that a product's future support is uncertain I'm afraid to keep investing (although at that point the product might still be working as expected).

Anyway, after those two experiences I'm not ready to trust Shiny Frog with a far more relevant area than bookmarks or visual inspiration, an area, that above all else needs continuity and ongoing support. And when I read in their product announcement

Bear's future development relies on how much it will be successful and profitable, however we'll do our best to keep it updated, implement new features and respond to every support request in the shortest time possible.

I feel quite confirmed.