HTTP Cookies not working on iOS,HTTP Cookies and iOS Builds

Hi there,

I am currently developing a game w$$anonymous$$ch builds to both WebGL and iOS. To remember users, I store an HTTPCookie once a user logs into their account, w$$anonymous$$ch has a 14 day expiry. These cookies work perfectly well in my WebGL builds, however on my iOS builds they aren't getting stored. I don't know how to approach t$$anonymous$$s problem. I do not want to use player prefs to store user data. Does anyone know how I can go about solving t$$anonymous$$s?

Thank you!