Looks like a great app, developer has made it free with this note: "Hi all, I am the developer of Chromatic: Color Puzzles. My app has received many reviews stating that it helps people with anxiety, OCD, insomnia, etc.
In light of the financial difficulties experienced by many at these times, I have decided to make the in-app purchase free (normally USD$2.99). If you’re in a bad place mentally, I hope Chromatic can help you relax a bit!"
FREE IAP as well
App description:
Today’s world is too stressful, too demanding, and too chaotic. Take some time to de-stress! Chromatic is a colors-based puzzle game ideal for rest and relaxation.
The concept is refreshingly simple: just tap colors to swap them until harmony is restored. You will find puzzles with the perfect hues and level of challenge for you.
Express your artistic side by organizing colors into satisfyingly beautiful arrangements. Explore the endless number of multidimensional gradients that can be stretched across your screen. Get lost in captivating colors and ambient music.
Chromatic allows you to:
Reduce negative emotions with relaxing puzzles
Challenge your perceptual skills
Create harmony from chaos
Chromatic is:
Based on color theory and visual perception
Invigorating, yet relaxing
Satisfying and rewarding
Chromatic has:
A clean interface and a simple design
Featured puzzles based on the time of year
Endless puzzles using every color imaginable
Chromatic does not have:
Time limits - too stressful!
High scores - too much pressure!
Third-party ads - too annoying!
Upvote for size of app in title.