EpsilonUnlock marketing's full potential
vs
OmnisendEmail & SMS marketing for ecommerce brands
Comparison · Email Marketing · weekly run Nov 2
Epsilon vs Omnisend
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Omnisend is the stronger AI pick in Email Marketing: it has a visibility score of 10.6 versus 0.9 for Epsilon.
Choose Epsilon if…
- You need ISO 27001 or SOC 2 audit for parts of the business coverage
- You prefer a larger, established vendor (5,000+ employees)
- flexible technology for high-volume programs
- campaign operations, strategy, and creative services
Choose Omnisend if…
- You want the brand AI engines rank higher (10.6 vs 0.9)
- Specialized for e-commerce and online retail marketing
- Strong Shopify and WooCommerce integrations
- Combines email, SMS, and automation workflows
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Epsilon | Omnisend |
|---|---|---|
| Visibility score | 0.9% | 10.6% |
| Change vs last week | New | New |
| Rank in Email Marketing | #35 | #12 |
| Share of voice | 0.2% | 4.2% |
| Mentions this run | 1 | 20 |
| Positive in AI answers | — | 38% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Epsilon 0pp · Omnisend 0pp over 0 weekly runs.
Engine by engine
Omnisend leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
EpsilonOmnisend
Head to head in AI answers
0 engine answers name both brands
0Epsilon ranked higher
0Omnisend ranked higher
Features, pricing & fit
| Dimension | Epsilon | Omnisend |
|---|---|---|
| Pricing model | — | Usage-based |
| Entry price | — | Free; paid from $16 / mo |
| Free plan | — | Yes |
| Integrations | — | 330+ |
| Compliance | ISO 27001, SOC 2 audit for parts of the business | — |
| Support | — | 24/7 live chat and email support |
| Founded | 1969 | 2014 |
| Headquarters | Irving, Texas, United States | Global (LinkedIn lists United Kingdom) |
| Employees | 5,000+ | 201–500 |
| Funding | — | Angel |
| Best for | Brands that want personalized, omnichannel marketing run at individual level and at scale | Growing and mid-sized ecommerce businesses focused on email and SMS marketing |
Plans side by side
Epsilon
Pricing not available.
Omnisend
Free$0month
Standard$16month (500 contacts)
Pro$59month (2,500 contacts)
CustomCustomcontact sales
Pros and cons
Themes from the AI answers that mention each brand
Epsilon
- flexible technology for high-volume programs
- campaign operations, strategy, and creative services
Omnisend
- Specialized for e-commerce and online retail marketing
- Strong Shopify and WooCommerce integrations
- Combines email, SMS, and automation workflows
- Intuitive, scalable automation without feature bloat
- Budget-friendly with prebuilt email, SMS, and push workflows
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Epsilon vs Omnisend”, https://slateindex.ai/compare/epsilon-vs-omnisend, data of Nov 2, 2026. Licence: CC BY 4.0.