I've used Numeracy to perform ad-hoc data exploration on several different datasets and to collaborate with colleagues using the results of the explorations. The team is super responsive to feedback and support requests.
The team behind Numeracy are some really talented folks I worked with back in my Dropbox days. That culture of thoughtful user experience design coupled with deceptively well executed technical work carries over perfectly to Numeracy.
I'd love to have an on-prem version so we could use this at work!
In getting Bright solar off the ground, I've tried several tools from psql, pgcli, pgweb, Metabase and finally Periscope. For quick analysis, nothing even compares to the raw speed of Numeracy.
Numeracy gets out of my way and lets me write SQL, but goes above and beyond. The automatically calculated column statistics of any query have already helped me identify and fix data bugs I wasn't even looking for, and the "record view" for JSONB types is singlehandedly saving my vision.
This is the simple SQL tool I've been looking for since the first time I used phpMyAdmin, and is steadily replacing my BI use cases too.
Our entire team has been using Numeracy for a year+ -- it's been rock solid and many of us use it daily. Don't know where we would be without it!