Normal SMS message

Be careful not to send an SMS with MMS cost on iPhone

Perhaps not everyone knows, but all SMS you enter a title (in the ‘Subject’ field) automatically turns a MMS and therefore, you are charged for this even if you do not include any image, video or audio files.

Normal SMS message

MMS Message

So, if your intention is just to send an SMS, never use the Subject space, to avoid surprises in your cell phone bill. ?

If the “Subject” field does not appear for you, go to Settings> Messages> Show Subject

GordoGeek Tip