The #1 Coloring App for a reason & it's free

I downloaded this Free App on my Iphone a few months ago. It's basically a paint by number. What I love is that it's totally free unlike others where you have to pay after your 3 day trial period. With this App you have full access to every single picture, you can pay a one time fee of $3 to get ride of the ad's but that's a waste of money, the Ad's only pop up when you are finished a picture and are only on the screen for 5 seconds then you can close them.
I love this because there are probably close to a thousand pictures, they add a new 'daily picture' daily as well as 8 new pictures each day. If you follow their FB page, they give free bonus pictures at least once a week. There are themed groups to find what you like easier such as nature, animals, people, places, mandalas, marine, food, fantasy etc. There is something for everyone and if you don't finish a picture, it saves your progress and you pickup where you left off later. Oh and it's not battery draining and it doesn't take up much space on your phone.
It does require WiFi, but a tip is to start a bunch of pictures, even just color one piece and close it, do this a bunch of times and then when your not connected to the net, open the App and go under 'in-progress' and you can resume coloring any of the pictures you started without WiFi - I did this for when I went away on vacation, started like 30 odd pics.
This App has really helped with my stress and anxiety, to make a long story short, I had a parent in palliative care for 4-5 weeks and I spent many nights sleeping in their room - needless to say I was stressed out. When they were sleeping (which was a lot near the end) this App got me out of my own head, calmed my nerves and let me escape reality for awhile.
Go check it out, I think you will like it.