Rosco myColor 4+

Worse than a swatch book.

The single most useful feature set of an app like this — the only thing that makes it better than a swatch book — is the things that make computers good. Easy, searchable access to large volumes of data. Unfortunately, the Rosco app fails at this. Graphics are the first thing you see on opening the app - you have to hunt for a search field.
I can’t imagine anyone is using the screen on their phone as a colour reference (if you are, stop) — but I might be interested in the data about filters or comparing data between filters.
Unfortunately, the useful information is buried behind sliding panes and squares of colour.
It very much looks like Rosco have been transfixed by my-first-font and UI elements and totally forgotten UX and why people might actually use the app.
The detail of colours - CIE colour space charts for example, is useless images of the sheets from the swatch book. I can’t see where a colour sits in reference to others, zoom in for detail or even see the chart larger than a postage stamp.
Furthermore, they insist on gathering personal information to simply flag favourite or most often referenced filters. There is absolutely no need for it. There’s also no advantage to having the ability to accessing the information elsewhere. I’m never going to choose colours as a designer on my phone, then want to log in elsewhere to reference those colours. Just needless data scraping.
If Rosco would like to develop an app that’s actually user-focused then I might keep it on my phone. As it stands this is just a waste of 15.3MB.