Emojis in sms- do they cost? HTC One M8

[AC Question]

I've not had this phone very long, I was coming from a LG G2 where the emojis changed the sms to a mms. But it doesn't happen on the HTC One M8, I was wondering if I would be charged to use emjois

 

[srkmagnus]

I've not had this phone very long, I was coming from a LG G2 where the emojis changed the sms to a mms. But it doesn't happen on the HTC One M8, I was wondering if I would be charged to use emjois

Does your plan allow for sending/receiving mms? I'm pretty sure emojis are sent via mms; however, I could be wrong.

 

[Farrr42]

In my plan it only allows sms. My phone doesn't convert the message into a mms when I use them, but if I put an actual picture a small message will pop up saying its a mms. So I was just curious because on my other phones emojis usually change the message to mms.