SMS Marketing vs Email Marketing: Which Fits Your Business?

Text messages are best for short, urgent, time-sensitive messages to people who already know you. Email is best for anything that needs detail, design or a paper trail, and it reaches a bigger audience for less money. Most Canadian small businesses do best with email as the foundation and SMS as a tightly controlled add-on. In Canada, both channels fall under the same anti-spam law, so consent comes first either way.

We're a marketing agency in London, Ontario. We work with businesses across many industries, and we've seen owners burn money on both channels. Here is how to choose without that mistake.

TL;DR

• Use SMS for appointment reminders, delivery updates, last-call offers and anything that expires in hours.
• Use email for newsletters, estimates, receipts, education and any message that needs links, images or a record.
• Email is cheaper per contact and easier to scale. SMS is a bigger interruption, so it has less room for error.
• Canada's anti-spam law (CASL) covers both. You need clear opt-in consent and a working unsubscribe, and you must be able to prove it.
• You don't have to pick one. Email carries the detail and SMS delivers the nudge.

Table of Contents

• The real difference between SMS and email marketing
• When SMS is the right call
• When email is the right call
• What each channel costs
• Canadian rules: CASL applies to both
• How to choose: a quick decision guide
• Our perspective
• Where we can help
• FAQ
• Sources

The real difference between SMS and email marketing

SMS marketing means sending promotional or service messages by text to people who agreed to receive them. Email marketing means doing the same by email. That sounds trivial, but the channels behave very differently because of how people use their phones and their inboxes.

A text arrives on the lock screen and gets read, usually within minutes. An email lands in a crowded inbox, where it might sit for a day, get filtered to spam or get ignored. Vendor guidance consistently describes SMS as the right fit for short, time-sensitive updates, offers and reminders, with email better for long-form content like newsletters and product launches. Oracle's channel strategy guidance makes the same trade-off point: SMS gives up reach, design and frequency in exchange for urgency, while email gives up immediacy for depth and scale.

You'll see "98% open rate" quoted all over the web for SMS. Treat that number carefully. It comes from vendors who sell texting software, and a high open rate on a small, willing list isn't the same as revenue. What matters is how many of the right people act, and what each message costs you.

Side by side

The pattern across Oracle's and other vendors' guidance is the same: email supports larger audiences and more frequent sending, while SMS audiences are typically smaller and sending is generally more expensive.

When SMS is the right call

SMS earns its place when timing is the whole point. Think of messages a customer would be annoyed to see a day late.

• Appointment reminders. A text the morning before cuts no-shows for dentists, salons, clinics and home-service crews.
• Arrival and delivery windows. "We're 20 minutes away" is a text, not an email.
• Time-limited offers. A short "order by 5 PM" style message works because it's short and expires.
• Booking confirmations. The customer wants it now, on the device in their hand.
• Follow-up with someone who just raised their hand. A quick text to a person who asked for a quote can start a conversation.

Good SMS looks like what a person would type. It names your business, says one thing, and gives one next step. A message that reads like a flyer gets deleted, and often gets an unsubscribe.

Where SMS goes wrong

1. Texting too often. A text is a tap on the shoulder. Two or three a week from a landscaper feels like harassment.
2. Texting people who only gave you an email address. That's a consent problem, and we cover it below.
3. Using SMS for anything long. If it needs a paragraph, it's an email.
4. Ignoring the cost. Platform plans and per-message fees add up quickly once your list grows.

When email is the right call

Email is the workhorse. It's cheap, it scales and it can hold real information.

• Newsletters and updates that keep you on the radar between purchases.
• Estimates, proposals and invoices that people need to save and forward.
• Education. A seasonal maintenance checklist, a how-to, a case for why your service is worth the price.
• Welcome and nurture sequences for new leads who aren't ready to buy yet.
• Promotions with visuals, where a photo of the work sells better than a sentence.

Email's weaknesses are real, too. Inboxes are crowded, open rates are lower than texts, and messages can land in spam or render badly on some devices. A tired list and a weak subject line will sink a campaign faster than any channel choice. If you want to know what outsourcing this looks like, our breakdown of what an email marketing agency costs and what you actually get is a good place to start.

What each channel costs

We don't quote prices for other companies' products, and your numbers will depend on the platform you pick. But the shape of the costs is predictable.

Email is usually priced by list size or send volume, and the cost per message is tiny. Small lists can often run on a low-cost or entry-level plan. The real cost is the time or the person writing, designing and managing it.

SMS is usually priced per message (often per message segment, so a long text can count as two), plus a monthly platform fee. Canadian carriers and platforms differ, so ask any provider for the full rate card, including what an incoming reply or a message with an image costs.

A simple way to compare the two before you commit:

1. Estimate the size of the list you can lawfully build in the next 12 months for each channel.
2. Multiply by how many messages per month you would realistically send.
3. Add platform fees and your time.
4. Divide by the number of leads, bookings or sales you would need to break even.

If the SMS number only works at a send frequency your customers will hate, it doesn't work.

Track the same four things on both channels: click-through rate, replies or conversions, cost per message and how long people take to respond. Don't judge on opens alone. Email opens are muddied by mail apps that preload images, and SMS opens are a number few platforms can truly verify.

Triggered beats scheduled

Whichever channel you pick, a message that fires because the customer did something almost always beats a blast to the whole list. Booking confirmation, abandoned quote, "how did we do?" after a job, a reminder before a service call. Set those up first. Our guide to marketing automation for small business walks through where to start.

Canadian rules: CASL applies to both

This is where small businesses get caught. Canada's Anti-Spam Legislation is not an email-only law. It applies to commercial electronic messages sent to electronic addresses in Canada, and the CRTC's guidance confirms that includes both email and text messages.

What that means in practice:

• Get consent before you send. Express consent needs a clear, positive action by the person. Pre-checked boxes don't count, and the burden of proving consent sits with you, the sender.
• Treat consent as channel-specific. Someone who gave you their email address for a quote hasn't agreed to marketing texts. Ask for each channel on your form, in plain words, and record which one they chose.
• Identify yourself. Every message must clearly say who's sending it and give valid contact information. Because texts are short, CASL allows a clearly labelled link to a web page carrying the sender identification and contact details.
• Make unsubscribing easy. Every message needs a simple, working opt-out, and requests must be honoured within 10 business days. We'd do it the same day, because a text that says STOP and then keeps coming gets reported.
• Keep your records. A university compliance guide advises holding consent records for the life of the consent plus three years, and longer if you want a stronger defence.

CASL also doesn't apply to everything. Non-commercial messages and one-way display advertising, like banner ads, fall outside it. When in doubt about how it applies to your list, particularly an older one, talk to a lawyer who handles Canadian anti-spam compliance. We're a marketing agency, not a law firm, and this isn't legal advice.

How to choose: a quick decision guide

Answer these honestly.

Do you already have customers' email addresses? Start with email. It's the cheapest way to talk to people you already serve.

Is your business built on appointments, scheduled jobs or deliveries? Add SMS reminders and confirmations. This is the highest-return use of texting for most local service businesses.

Do you sell something that needs explaining? Lead with email, because you can't explain a roof replacement in 160 characters.

Do you run time-limited promotions? Use email for the full offer and a short SMS for the last-call nudge, only to people who opted in to texts.

Do you have the capacity to reply to texts? SMS invites a conversation. If nobody answers within the hour, you've made your customer service worse.

Examples that work together

• A London home-service company. Email goes out with the seasonal maintenance checklist. A text goes out the day before each booked visit with the arrival window.
• A restaurant or retailer. The email announces the new menu or collection with photos. A short text on the day reminds opted-in regulars about the weekend-only item.
• A professional services firm. Email delivers the proposal and a case study. A text confirms the meeting time the morning of.

The pattern: email carries the detail, and SMS gives the immediate alert. Canadian guidance on transactional messages recommends exactly that split, with email for documented information and SMS for the immediate alert.

Our perspective

We don't think "SMS vs email" is the right fight. The better question is which message belongs where, and whether your website and lead process are capturing people in the first place.

Here's what we see. A lot of owners get excited about texting because it feels direct, then bolt it onto a site that doesn't collect contacts properly. They end up with a tiny list, no clear consent and nobody following up. Email, meanwhile, gets written off as old-fashioned right before it would have paid for itself.

Our advice, plainly:

1. Fix the foundation first: a site that makes it easy to enquire and clearly asks for permission to contact.
2. Build your email list and a few automated emails that run without you.
3. Add SMS for the moments where speed matters: confirmations, reminders and replies to new enquiries.
4. Keep your sending frequency lower than you think you can get away with.
5. Measure leads and booked work, not open rates.

We work with businesses across multiple industries, not only one niche, and the answer changes with the business. A contractor with a full schedule needs different messaging than a boutique with a weekly drop. That's why we don't sell a one-size-fits-all package.

— Launch & Found

Where we can help

Channels only work when the rest of the marketing does. At Launch & Found we're based in London, Ontario, and we also serve businesses in surrounding Ontario service areas. Our work covers advertising, website design, SEO and media production, and that's usually where lead capture starts: a site that earns enquiries, ads that send people to it and content that gives them a reason to opt in.

Pricing is by custom quote after we assess whether we're a fit for your business. There are no fixed-price packages. If you'd like to talk it through, contact Launch & Found for a quote.

FAQ

Is SMS better than email marketing?

Not across the board. SMS is better for urgent, short messages to people who've opted in, and email is better for detail, design and reaching a larger audience at lower cost. For most small businesses, email is the base and SMS is the add-on for time-sensitive moments.

Can I text customers who only gave me their email address?

No, not for marketing. CASL consent is channel-specific, so you need to ask for permission to send texts and keep a record of what each person agreed to. Collect both consents separately on your forms, and never use pre-checked boxes.

How much does SMS marketing cost compared with email?

SMS is usually priced per message plus a platform fee, and it generally costs more per contact than email. Email is often priced by list size and is cheaper per message. Ask any provider for the complete rate card before you compare, including fees for replies and longer messages.

Do I have to include an unsubscribe option in text messages?

Yes. Commercial texts need sender identification and a working way to opt out, just like emails, and CASL requires opt-outs to be honoured within 10 business days. Because texts are short, you can link to a page with your full contact details.

Should I use both SMS and email?

If you have the consent and the capacity to manage both, yes. Use email for the story and the detail, and SMS for reminders and short alerts. Start with email, then add texting where timing matters most.

Sources

• Frequently Asked Questions about Canada's Anti-Spam Legislation (CRTC)
• Doing Business in Canada: CASL (Gowling WLG)
• Doing Business in Canada: CASL, scope of the law (Gowling WLG)
• Canadian Anti-Spam Legislation FAQs (MacEwan University)
• Digital Channel Strategy: Strengths and Weaknesses of Email, SMS, Push (Oracle)
• When to Use SMS vs Email Marketing (Mailchimp)
• SMS vs Email vs Live Chat in Canada (Omnifox)

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• Dynamic Number Insertion: How It Works and When to Use It
• ROAS vs ROI: What Each Tells You and Which to Track
• Contractor Lead Generation: What Works in Ontario