Enjoy Colouring
Would not commit to paying the outrageous fee - and ask the question, why do you release 2 daily pictures and only have one available to the user? This is bothersome, & certainly does not inspire me to pay for a subcription.
On the other hand, surprisingly I have come to enjoy this exercise of "clearing my mind".
VyeOne about
Recolor - Coloring Book, v2.6.1