SMS is email's quieter, higher-engaged cousin. 95%+ open ratevs 25% for email. Here is the ROI and setup.
Real SMS benchmarks (from $40M+ in our client data)
- →Open rate: 95%+ (vs 25-35% email)
- →Click rate: 15-25% (vs 1.5-3.5% email)
- →Conversion rate on promotional: 3-8%
- →Revenue per subscriber: $3-$12/month (2-3x email)
- →Typical list size: 10-30% of email list
Setup requirements (US market)
- →Explicit opt-in (TCPA↗compliance)
- →Clear disclosure: price, frequency, STOP instructions
- →Short code or toll-free number (not long code)
- →Double opt-in recommended
- →Honor STOP/HELP/UNSUBSCRIBE immediately
Best platforms
- →Attentive: enterprise, premium support, best UGCcreative
- →Postscript: mid-market, Shopify↗-native, strong flows
- →Klaviyo↗SMS: best if already on Klaviyoemail
- →Yotpo: if already on Yotpo reviews
How to collect SMS subscribers
- →Checkout opt-in (highest intent, 20-40% capture)
- →Popup with phone field (2x email popup conversion)
- →Welcome series CTA
- →Post-purchase page
- →SMS-exclusive offers
What to send
- →New product launches (fast, urgent)
- →Flash sales with end time
- →Abandoned cart (1-2 messages max)
- →Order updates (transactional)
- →Back-in-stock alerts (highest CVR)
What NOT to send
- →Generic content/newsletter
- →Anything non-urgent
- →More than 6-8 sends per month
- →Messages without a clear CTA
Frequently asked questions
Is this approach right for early-stage companies?
Most frameworks in this space assume a certain level of operational maturity, dedicated team members, established measurement infrastructure, some history of experimentation to build on. Pre-seed and seed-stage companies often lack these prerequisites and need a lighter-weight adaptation. For brands doing under $3M in annual revenue, focus on three or four of the principles that matter most for your specific business model rather than trying to implement the full framework at once. Rigor matters more than coverage at this stage.
How does this work for B2B versus B2C businesses?
The underlying principles around sms marketingroi apply across both contexts, but execution differs meaningfully. B2B email typically has longer sales cycles, multiple stakeholders per deal, and consideration periods measured in months rather than minutes. Measurement frameworks need longer windows. Attributionbecomes more complex. The same core strategic logic applies, but the tactical implementation looks different. We've worked extensively in both contexts and can flex the approach accordingly.
What changes when we integrate this with existing systems?
Every implementation requires integration work, systems don't exist in isolation. Analytics platforms, CRM, email systems, ad accounts, BI tooling all need to talk to each other for this to work at scale. Plan for 2-4 weeks of integration work at the start of any implementation. Shortcutting this phase creates data quality issues that compound and undermine the entire program over 6-12 months. We've seen teams skip integration work to move faster, only to spend 6 months later reconciling measurement discrepancies that could have been prevented upfront.
When should we reconsider the approach?
Every 6 months, run a structured review against the principles outlined here. Ask whether the market has shifted meaningfully, whether your business model has evolved, whether competitive dynamics have changed. Frameworks should evolve with context. A rigid commitment to any specific approach, including ours, eventually becomes the problem rather than the solution. The teams that outperform long-term are the ones that update their operating model based on evidence, not the ones that defend past decisions.
.Gartner, CMO Spend SurveyApply this: free email tools.
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