Pre-paid customer, $15 unlimited text and photo messaging plan, iPhone 8. When I first signed up, I was receiving photo texts without any problem, even though I did not have a data booster added to my account. This makes sense, as it is my understanding that while MMS requires data to be on, you aren't charged for that data usage if you are on the unlimited text and photo message plan.
Today, I added a data booster to have for emergencies only, and when I checked usage later, I found that my 5MB was used from the data booster for receiving photo messages. What gives?
Best answer by Allan M
When you turn on data on your phone to send or recieve a picture message your phone will use data in the background occassionally. Stuff like notifications, updates, apps that arent closed, android services, etc. Will all use data in the background even if you yourself arent doing anything.