Klaviyo
E-commerce email & SMS with deep Shopify data.
Global Compliance ROI
Lifecycle Messaging: Email vs SMS vs WhatsApp (2025)
Compare deliverability, speed, conversions, cost, and compliance — then use the decision wizard to tailor the channel mix to your use-case.
Onboard users, drive feature adoption, recover churn.
Top pick: WhatsApp for SaaS ActivationSee all comparisons
75%
ComplianceROISpeed
Deliverability
86%
Speed
72%
CTR
45%
Personalization
92%
Cost Efficiency
94%
Compliance
82%
Global Reach
98%
- Best for: newsletters, onboarding, receipts
- Advanced personalization & templates
- Cheapest at scale
Suggested tools
These cards link to your directory for discovery (and reviews for depth).
SMS
75%
ComplianceROISpeed
Deliverability
94%
Speed
96%
CTR
58%
Personalization
70%
Cost Efficiency
72%
Compliance
88%
Global Reach
86%
- Best for: alerts, OTPs, time-sensitive nudges
- Near-instant delivery & high CTR
- Watch cost at volume
Suggested tools
These cards link to your directory for discovery (and reviews for depth).
79%
ComplianceROISpeed
Deliverability
92%
Speed
93%
CTR
64%
Personalization
84%
Cost Efficiency
80%
Compliance
90%
Global Reach
74%
- Best for: conversational commerce & support
- Template approval + buttons, rich media
- Great read rates in adopted regions
Suggested tools
These cards link to your directory for discovery (and reviews for depth).
Explore tools by channel
E-com favorite
Mailchimp
All-in-one email + simple automation.
Customer.io
Behavioral campaigns with granular control.
Brevo (Sendinblue)
Affordable newsletters & automations.
ConvertKit
Audience building for creators.
Quick decision wizard
Tick what matters most — we’ll suggest a mix:
Goals
Suggested channel
We recommend WhatsApp as your primary channel.
Secondary: email , sms — mix channels via behavior-based triggers.
Conversational Template buttons Region adoption varies
Costs, templates, and compliance at a glance
| Channel | Typical cost | Templates | Opt-in | Best use |
|---|---|---|---|---|
| Very low CPM at scale | HTML, liquid/handlebars, blocks | List opt-in, easy unsubscribe | Newsletters, onboarding, receipts | |
| SMS | Pay-per-text; varies by country | Short text + links | Explicit opt-in; quiet hours (region) | Alerts, OTP, time-sensitive promos |
| Template/session pricing | Approved templates w/ buttons | User consent; brand template approval | Conversational commerce & support |
Pricing and policies vary by provider and region. Verify with your vendor before scaling.
FAQs
Which should I implement first?
Start with Email for scale and cost-effectiveness, layer SMS for time-sensitive nudges, and add WhatsApp where adoption is strong.
How do I avoid audience fatigue?
Use behavior-based triggers and caps (e.g., max 2 SMS/week). Shift long-form content to Email; keep SMS/WhatsApp for short actions.
How do I measure impact?
Track per-channel revenue attribution, holdout groups, and blended LTV — not just CTR. Compare journey time-to-action across channels.
Some links may be affiliate (marked as sponsored). Using them supports our work at no extra cost to you.