MailgunTransactional Email API Service For Developers
vs
OmnisendEmail & SMS marketing for ecommerce brands
Comparison · Email Marketing · weekly run Nov 2
Mailgun 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 Mailgun.
Choose Mailgun if…
- You want a lower entry price ($15 vs $16)
- You need SOC 2 Type II or ISO/IEC 27001 or ISO 27701 or GDPR compliant or HIPAA compliant or PCI-compliant SAQ-A merchant coverage
- recommended for sending larger volumes programmatically
Choose Omnisend if…
- You want the brand AI engines rank higher (10.6 vs 0.9)
- AI answers describe it more positively (38% vs 0% positive)
- Specialized for e-commerce and online retail marketing
- Strong Shopify and WooCommerce integrations
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Mailgun | Omnisend |
|---|---|---|
| Visibility score | 0.9% | 10.6% |
| Change vs last week | New | New |
| Rank in Email Marketing | #36 | #12 |
| Share of voice | 0.2% | 4.2% |
| Mentions this run | 1 | 20 |
| Positive in AI answers | 0% | 38% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Mailgun 0pp · Omnisend 0pp over 0 weekly runs.
Engine by engine
Omnisend leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
MailgunOmnisend
Head to head in AI answers
0 engine answers name both brands
0Mailgun ranked higher
0Omnisend ranked higher
Features, pricing & fit
| Dimension | Mailgun | Omnisend |
|---|---|---|
| Pricing model | Usage-based | Usage-based |
| Entry price | Free; paid from $15 / mo | Free; paid from $16 / mo |
| Free plan | Yes | Yes |
| Deployment | Cloud, hosted in US and EU regions | — |
| Integrations | — | 330+ |
| Compliance | SOC 2 Type II, ISO/IEC 27001, ISO 27701, GDPR compliant, HIPAA compliant, PCI-compliant SAQ-A merchant | — |
| Support | Knowledge Center, Documentation, Ticket support, Chat support on higher plans | 24/7 live chat and email support |
| Founded | 2010 | 2014 |
| Headquarters | — | Global (LinkedIn lists United Kingdom) |
| Employees | 201–500 | 201–500 |
| Funding | Growth investment (Thoma Bravo) · $51M raised | Angel |
| Best for | Developers and engineering teams that need to send transactional and marketing email through an API | Growing and mid-sized ecommerce businesses focused on email and SMS marketing |
Plans side by side
Mailgun
Free$0month
Basic$15month (10,000 emails included)
Foundation$35month (50,000 emails included)
Scale$90month (100,000 emails included)
EnterpriseCustomcustom
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
Mailgun
- recommended for sending larger volumes programmatically
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, “Mailgun vs Omnisend”, https://slateindex.ai/compare/mailgun-vs-omnisend, data of Nov 2, 2026. Licence: CC BY 4.0.