This unsourced SO answer says: > Unfortunately the memory limit on iOS Safari is rather low. It’s limited to 384MB on version 15, it’s lower on earlier version

This unsourced SO answer says: > Unfortunately the memory limit on iOS Safari is rather low. It’s limited to 384MB on version 15, it’s lower on earlier versions, and it’s probably device specific as well. > As I said it depends on the device as well but it's always between 200-400MB Its a decision, not a hardware limitation. Helps keep web bloat in check, but it’s a worse experience for the user. I’m sure Apple’s happy to suggest a native app without such limits tho