
This article outlines:
Why SMS outperforms email where it counts most
How to make the ROI case for a channel that costs per send
The rules of SMS marketing and how to grow your opt-ins
SMS marketing has quickly proven itself to be one of the most powerful tools in a restaurant marketer's toolkit. Guests today often prefer text messages over email, so SMS marketing is one of the most effective ways to reach a guest where they already are—it’s an investment with measurable, outsized returns. In this blog, we'll cover why SMS marketing works, how to think about the cost vs. value tradeoff, and how to build a strategy that drives real revenue for your restaurant.
What Is SMS Marketing?
SMS, or text marketing, is prized by marketers for its directness, immediacy, and ability to reach guests where they actually spend time: on their phones.
The numbers speak for themselves:
- 98% open rates: SMS messages are opened 4–5x more often than email (20–25%)
- 21–35% click-through rates: far exceeding email's 2–3%
- 89% of guests have signed up to receive texts from a business, up from 66% just five years ago
- 45% response rate, compared with 8% for email.
- 87% check their texts within 15 minutes of receiving a message
Your guests live on their phones. SMS gets you into their main inbox—not a promotions tab or a spam folder.
SMS doesn't just perform better—it feels different. It's a more personal, direct channel. Guests are used to texting the people they care about. When a restaurant shows up in that same space with something relevant and timely, it builds a genuine connection.
That sense of "a brand that actually knows me" is increasingly rare—and increasingly valuable for driving loyalty.
"But Email Is Free…"
Let's address this directly, because it's the number one hesitation we hear from restaurant operators.
Yes, SMS marketing has a per-message cost. Email does not. But that framing misses the bigger picture.
Think about it this way: If you send 1,000 emails and get a 8% response rate, that's 80 guests taking action. If you send 1,000 SMS messages and get a 45% response rate, that's 450 guests taking action—even accounting for the per-message cost. And those 450 guests are more likely to visit sooner, spend more, and come back again.
The data backs this up: guests are 67% more likely to purchase from a business if they are subscribed to SMS.
Want to know what this looks like for restaurant brands? California Fish Grill implemented SMS marketing with Olo Engage and found that SMS opted-in guests visited every 120 days on average, compared to 175 days for non-opted-in guests—a 46% improvement in visit frequency—and had a 4% higher AOV and a 69% higher guest lifetime value.
California Fish Grill found that SMS-opted-in guests were worth 69% more over their lifetime—visiting 46% more often and spending 4% more per visit.
And we have seen cases where the completion rate of post-visit surveys plummets after switching from text to email—in some cases the decrease is over 90%. Guest satisfaction scores often drop as well. That's the real cost of not using SMS.
So, yes, there is a cost per message—but the cost of not reaching your guests where they are is higher.
SMS Works Best as Part of a Larger Strategy
SMS isn't a replacement for email—it's a complement to it.
Think of email as your broad-reach awareness channel and SMS as your action driver. Use email to introduce a new LTO, build excitement, and reach your full list. Then follow up with an SMS to the most engaged segment, sending a time-sensitive nudge to get them through the door, or an immediate response after their experience.
Email sparks interest. SMS closes the deal.
Together, they create a powerful loop:
Email for seasonal campaign launches, menu updates, and broad audience awareness
SMS for post-visit surveys, loyalty redemption reminders, coupon pushes, and time-sensitive follow-ups.
Ready to Start Your SMS program? Know the Rules.
SMS marketing is governed by the Telephone Consumer Protection Act (TCPA) and the CTIA. A few key points:
- Get explicit opt-in. Texting guests without their permission is both an invasion of privacy and illegal. Guests must explicitly opt-in via mobile or web.
- Transactional messages are off-limits for opt-ins. You cannot solicit SMS marketing opt-ins through order confirmations, reservation confirmations, or other transaction-based messages.
- Confirm every new opt-in. New subscribers must receive a confirmation text that includes the purpose of your messages, a reminder that message/data rates may apply, opt-out instructions, and instructions on how to access help.
- Keep information accessible. Details about your SMS program should be available on your website and anywhere you collect opt-in data.
Compliance is straightforward if you use a platform built for it (Olo Engage handles SMS confirmation flows with compliance regulations automatically).
Growing Your SMS Opt-in Audience
These four quick plays will drive opt-ins for any restaurant brand.
At Checkout
One of the highest-intent moments to capture an SMS opt-in is when a guest is buying from you. Platforms like Olo Serve make this easy with a built-in SMS opt-in at checkout, for a seamless capture that doesn’t disrupt the ordering experience.
Web Forms
Add SMS opt-in fields to all guest-facing forms: waitlist, reservation, website sign-ups, guest WiFi, and more.
Short Code Opt-In
Invite guests to text a keyword to a short code in exchange for an incentive—a discount, a freebie, or early access to deals.
Cross-Channel Promotion
Promote your SMS program across email, social media, and in-restaurant signage. Remind guests of the value they get by staying connected.
The Bottom Line
SMS marketing isn't free—but neither is losing guests to a competitor who's reaching them more effectively. When you factor in the lift in visit frequency, increase in average check size, and improvement in loyalty engagement, the ROI of a well-run SMS program far outpaces its cost.
Email remains a vital part of your marketing mix. But if you're not pairing it with SMS, you're leaving money on the table—and leaving guests without the timely, personal communication that keeps them coming back.
Contact us to learn more about SMS marketing and how it can help deepen your brand’s relationship with guests.