Email vs SMS Marketing: Which Should a Small Business Use?
Quick answer
Email is the base: a fraction of a cent per message, room for content, and the home of nurture sequences and newsletters. SMS is the interrupt: read within minutes, so it suits reminders, same-day offers and review requests to people who have opted in, at roughly $0.0079 per US segment. Start with email; add SMS when your business runs on appointments or time-limited offers. Our plans do both in one place: $100 a month for email campaigns, $199 adds a nurture sequence and SMS campaigns, $299 adds lifecycle automations. Sending is at cost.
Side-by-side comparison
| SMS | ||
|---|---|---|
| Cost to send | A fraction of a cent per message | About $0.0079 per US segment (up to 160 characters) |
| When it is read | Hours to days, if at all | Usually within minutes |
| How much fits | Long copy, images, buttons, links | A sentence or two and one link |
| Consent needed | Yes (opt-in, unsubscribe link) | Yes, stricter: explicit opt-in plus A2P 10DLC registration for US numbers |
| Best for | Nurture sequences, newsletters, offers with detail, receipts | Reminders, same-day offers, review requests, missed-call text-back |
| Frequency people tolerate | Weekly to monthly | A few a month at most |
| On our plans | From $100/mo | From $199/mo, usage at cost |
What email is for
Email is where the patient work happens. A new lead gets a welcome and a 7-email nurture sequence that answers their questions before they ask; existing customers get a monthly send with something useful and an offer; everyone gets a receipt or a confirmation they can find again. It costs almost nothing per message, so list size barely matters, and it carries enough content to persuade. Its weakness is attention: a good campaign is opened by a minority of the list and read hours later, which is fine for persuasion and useless for "we have a slot at 3pm".
What SMS is for
A text is read. That is its entire advantage and it is a large one, for the messages that need to be seen now: the appointment is tomorrow, the offer ends tonight, the order is ready, "you called while we were busy, how can we help?", "how did we do?" the day after a job. It costs real money per message, holds a sentence, and annoys people quickly, so it is a scalpel, not a newsletter. Reply-able texts also turn a campaign into conversations, which is why the SMS inbox and the CRM should be the same tool.
The rules: consent and A2P registration
Both channels need consent and an easy way out. SMS is stricter: US carriers require A2P 10DLC registration of the business and its messaging use case before local numbers can send business texts, and Canadian carriers filter unregistered business traffic. Texting people who did not opt in gets numbers blocked and can carry fines. We register every account, build consent capture into your forms and keep the opt-out working; if a provider does not mention any of this, that is the red flag.
What to send on which channel
| Message | Channel | Why |
|---|---|---|
| Welcome and nurture sequence for new leads | Needs room to explain and prove; read over days | |
| Appointment confirmation and reminder | SMS | Must be seen; cuts no-shows |
| Monthly newsletter or offer with detail | Content, images, several links | |
| Same-day or weekend flash offer | SMS | Time-limited; read in minutes |
| Review request after a job | SMS, with email backup | Highest response by text the next day |
| Win-back after months of silence | Email first, SMS if no response | Start cheap and gentle, escalate once |
| Missed-call text-back | SMS | The caller is holding the phone right now |
How they work together
The strong setup is one list and one set of automations that choose the channel per message: a new web lead gets a text within a minute and the nurture sequence by email over the next weeks; a booked customer gets email details and a text reminder; a finished job triggers a text asking for a review with an email fallback. That is what the $199 plan builds and the $299 plan extends with win-back and segmentation, all in a GoHighLevel sub-account at $29 a month, or in your existing Mailchimp, ActiveCampaign or Klaviyo account for the email side.
Email and SMS, written and automated for you, from $100 a month
Campaigns, nurture sequence, reminders and review requests, sending at cost. No contract, pay by card.
Campaigns — $100/mo Campaigns + Nurture — $199/mo Full Lifecycle — $299/mo
See the full cost breakdown, the service page, or book a free call.
Frequently asked questions
Neither is better; they do different jobs. SMS is read almost immediately and suits time-sensitive messages to people who know you: appointment reminders, flash offers, review requests. Email carries more content, costs a fraction of a cent, tolerates a longer list and is where nurture sequences and newsletters live. Most small businesses should run email as the base and add SMS for the few messages that need to be seen now.
On GoHighLevel, email is a fraction of a cent per message and US SMS is billed at Twilio’s published rate of roughly $0.0079 per segment, with a segment being up to 160 characters. Both are passed through at cost on our plans; the management fee is $100 to $299 a month.
Yes. Consent is required, US carriers require A2P 10DLC registration in your business name, and Canadian carriers filter unregistered business texts. Unsolicited texting gets numbers blocked and can carry fines. We register every account and build the consent capture into your forms.
SMS: appointment confirmations and reminders, a same-day or weekend offer, "your order is ready", a review request the day after a job, a missed-call text-back. Email: the welcome and nurture sequence, monthly newsletters, longer offers with images, receipts and anything the reader may want to find again.
Yes. GoHighLevel holds the contact list, the email builder, the SMS inbox and the automations in one place, so a lead can get a text now and an email tomorrow from the same workflow. That is why our plans use it by default; a sub-account is $29 a month.
Email, unless your business runs on appointments. Build the list, the welcome sequence and a monthly send first; add SMS on the $199 plan when you have consented numbers and messages that need to be seen within minutes.