SMS & MMS Text Messaging: Do you Know the Difference?

Megan Reninger by Megan Reninger

It's no surprise that the trend towards texting is exploding and is continuing to be an increasingly powerful tool for companies to connect with their contacts instantly. Researchers anticipate that business text messaging and mobile usage is a force that's here to stay and not just a trend that will pass by. In fact, the next generation of text messaging is already upon us; it's called MMS messaging. But what's the difference?


SMS is an acronym for "Short Message Service" and is the oldest, most widespread, and frequently used texting technology that is supported by every single mobile network and device today. In the U.S. alone, over 6 billion SMS messages are sent daily. These messages are limited to 160 alphanumeric characters per message (That's just a fancy word for both letters and numbers).


MMS is an acronym for "Multimedia Message Service" and is most popularly used to send pictures or images. In the U.S. alone, annual MMS traffic has increased from 57 billion to 96 billion messages. Unlike SMS, MMS messages do not have a standard length.

Call-Em-All customers can send a .PNG or .JPG/.JPEG file up to 5 MB. This new feature is available in both "Create Broadcast" and in "Conversations" for our Pay-As-You-Go customers. MMS is not currently available for our monthly plans, more on that later. Common use cases include:

  • Upcoming Event Posters
  • Food Menus
  • Maps w/ Directions
  • Company Logos
  • Event Recap Pictures
  • Screenshots of PDF's

*We DO NOT allow sales, marketing, political, or promotional material. Explicit imagery is NEVER tolerated (nudity, partial nudity, cursing, etc.). Responsible Use Policy.


When deciding between SMS versus MMS, pinpoint your messaging goals and objectives. Are you interested in sending text-only or visual messages? Do your contacts engage and respond better with simple text messages or colorful imagery? Does the character count limit your content and communication goals? These are all things to consider when choosing between SMS and MMS messaging.


In the right use case, MMS is much more engaging to contacts than a plain text message. You might be wondering, "Does MMS cost more"? Simply put, yes - it involves the transmission of more data and mobile carriers typically charge 6X or more per MMS message than they do for an SMS message.


  • All outbound SMS messages are 1 credit (One 160 character text)
  • All outbound MMS messages, broadcasts and conversations, are 2 credits
  • Inbound messages are always free!


  • All outbound SMS messages are included with your monthly plan
  • Outbound MMS is not available due to the high cost. Customers can switch to a Pay-As-You-Go account, or create a separate Pay-As-You-Go account just for MMS.
  • Inbound messages are always free!

Send SMS or MMS Text Message

About Call-Em-All

Call-Em-All's mass texting service, voice broadcasting, and text conversations help organizations deliver important messages quickly and maintain better engagement with contacts.

Since 2005, we've delivered more than 1.2 billion voice calls and text messages for companies in healthcare, education, staffing & human resources, property management, utility, non-profits, and religious groups.

We're different because of our culture. We believe it's our biggest competitive advantage. We're passionate about creating positive experiences for our customers, and ensuring that our platform isn't being used to spam marketing or political messages.

fill-headshot-lightblue Megan Reninger fill-headshot-dots About Megan Reninger
Megan Reninger is a Digital Marketing Analyst at Call-Em-All with experience in content writing, social media management, and SEO optimization. A writer by day and a reader by night, she's an Austin native with a passion for baking and traveling. She is currently pursuing her Master of Business Administration - Marketing degree at Abilene Christian University.

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