Question

is a platform used for mobile apps. brownberry html bluetooth ios

Explanation:

• BrownBerry: This is not a recognized platform for mobile apps.
• HTML: It is a markup language used for creating web pages, not a platform for mobile apps.
• Bluetooth: It is a wireless technology standard for exchanging data over short distances, not a platform for mobile apps.
• iOS: It is a mobile operating system developed by Apple Inc. for its mobile devices (such as iPhones and iPads), and it is a well - known platform for mobile apps.

Answer:

iOS