Great app but super buggy

When this app works I love it. My issue is with getting it to work. Currently the app wont even open, it immediately closes. Regular use means spending 5-10 minutes to try and get the app to open and then actually work because it has to freeze repeatedly, then while using it the app freezes during different functions, such as the serenity scene, and causes a gorse close and restart.
Please fix this. I paid for the year and Im seriously considering getting my money back because the developers havent made a functioning app.

Highlyaddictedtothisapp about Happify: for Stress & Worry