SMS is the cheap, universal text; MMS is the pricier message that carries a picture. Neither is 'better', they're tools. SMS reaches everyone at the lowest cost for plain reminders and asks. MMS costs more but lets a candidate photo or a voter-guide graphic do what words can't.
When plain SMS is right
Deadlines, polling places, event reminders, quick asks, anything where the words are the whole message. It's the cheapest per send and reaches every phone, so it's your default for volume.
When MMS earns its cost
A candidate headshot that builds recognition, a simple graphic with early-vote dates, a shareable image. If the picture changes the response, the extra cost is worth it. If it's decoration, send SMS.
Frequently asked questions
What's the difference between SMS and MMS?
SMS is text-only, cheapest, and universal; MMS carries images and longer content at higher cost. Use SMS for reach and plain messages, MMS when an image does real work.
Is MMS worth the extra cost for campaigns?
When the image changes the outcome, a recognizable candidate photo, an early-vote graphic, yes. For plain reminders where words suffice, SMS delivers the same result cheaper.
Informational, not legal advice.
Keep reading: SMS vs MMS vs RCS: which format to use and MMS file limits by carrier.