I assume you are asking what this product's PA rating is. It is a US product, and does not have a PA rating-- though with its ingredients and SPF, I assume it is approximately PA +++. With only zinc oxide and titanium dioxide, I would not trust it to be PA ++++.

can this be used all over the face to avoid the white cast of other spf sticks?

No this is for cheeks and eyes for color - it’s a bronzer so I wouldn’t try to put it all over your face

is the berry shade similar to the universal blush in the beauty on the go palette?

This Color Balm in Berry is a deep raspberry hue, great for adding a more vibrant pop of color whereas Universal Blush from our Beauty On The Go palette is more neutral! We hope this helps!

Can blush color be used all over face?

Yes, it can. In the summer I have used the bronze as eyeshadow. It doesn't irritate my eyes because of the mineral sunscreen formula. It can also be used for contouring and as a bronzer. It's a great product!