The Quantum X iOS is an iOS app developed by Google for quantum simulation, allowing users to run various quantum experiments and simulations on their iOS devices. It is part of the Quantum Series, which includes other iOS apps developed by Google. The Quantum X iOS is based on a quantum simulation engine and provides a platform for exploring quantum mechanics through interactive simulations. If you are referring to something else, such as a Quantum Multiverse iOS, it is important to clarify that this is not a real app. The concept of a Quantum Multiverse is not a widely recognized term in the context of iOS or quantum mechanics. If you meant the Quantum Series or Quantum X Series, I can provide more detailed explanations about those. If you have a specific concept in mind, please provide additional context so I can assist you better.