Can apps access other apps RAM on iOS

Question

I’m currently researching the sandboxing and memory management mechanisms on iOS. My question revolves around whether one app can access or interfere with the RAM of another app. I’ve read that iOS has strong isolation policies, but I’m unsure about the following:

• How strict is the memory isolation enforced by iOS?
• Are there any documented exceptions or vulnerabilities that might allow cross-app memory access?
• What are the underlying mechanisms that prevent or potentially allow such access? Clarification on these points would greatly help in understanding the security boundaries set by iOS.