Very low FPS on iOS devices

Hi, Apple just published my game, but as i tested it with my sister’s iphone 6 plus, the FPS is awfull… mabye 15 or less…

It’s an iphone 6 plus ios 8.3.

I also tested it with my brother’s 6s (ios 9), and it has the same low FPS :frowning:

I am using unity 5.1.1.

The game works perfectly on Android devices, and it’s a pixelated 2d with graphic assets that are 400kb all together! with efficient and simple code.

so my question is, Why is the FPS is that bad on iPhones?

Thanks, Tal Rumer.

Guys?

Using the profiler is the only way you can know for sure.

I

I don’t even have a mac, (so i can’t use the profiler)
What will the profiller tell me?
As i said game works perfectly fine on android and in the editor, it must be a bug with building to ios,

Mabye i can give my project for checking?