Our email marketing software reviews separate creator newsletters, ecommerce lifecycle campaigns and detailed marketing automation. Mailchimp, Klaviyo, ActiveCampaign, Kit and Brevo solve overlapping but different jobs. Compare documented workflows and terms, not an untested deliverability winner.
email marketing software reviews: comparison overview
| Tool | Best for | Free plan | Main advantage | Main drawback | Pricing basis |
|---|---|---|---|---|---|
| Mailchimp | General campaigns | Yes, limited | Templates, segments and reports | Tier automation and contact costs | Contact/tier subscriptions |
| Klaviyo | Ecommerce lifecycle | Yes, limited | Ecommerce flows and reports | Contact/send allowances and SMS costs | Contact plans plus messaging |
| ActiveCampaign | Branching nurture | Trial only | Multi-step journeys and reports | Enhanced CRM needs eligible add-ons | Contacts, tiers, add-ons |
| Kit | Creator publishing | Yes | Broadcasts, pages, recommendations | Automation/user allowances vary | Subscriber tiers |
| Brevo | Small campaigns | Yes, limited | Limited free entry and channels | Send caps and advanced tiers | Send tiers and channels |
Mailchimp
Campaign builder and audience management.
Strengths: Templates, segments and reports.
Limitations: Tier automation and contact costs.
Pricing model: Contact/tier subscriptions. Mailchimp official pricing.
Best for: General campaigns.
Klaviyo
Customer-data email and SMS.
Strengths: Ecommerce flows and reports.
Limitations: Contact/send allowances and SMS costs.
Pricing model: Contact plans plus messaging. Klaviyo official pricing.
Best for: Ecommerce lifecycle.
ActiveCampaign
Configurable automation.
Strengths: Multi-step journeys and reports.
Limitations: Enhanced CRM needs eligible add-ons.
Pricing model: Contacts, tiers, add-ons. ActiveCampaign official pricing.
Best for: Branching nurture.
Kit
Creator newsletters.
Strengths: Broadcasts, pages, recommendations.
Limitations: Automation/user allowances vary.
Pricing model: Subscriber tiers. Kit official pricing.
Best for: Creator publishing.
Brevo
Email/transactional messages.
Strengths: Limited free entry and channels.
Limitations: Send caps and advanced tiers.
Pricing model: Send tiers and channels. Brevo official pricing.
Best for: Small campaigns.
Deliverability and evaluation
Inbox placement depends on permission, sender authentication, reputation, content and recipients. We have not run a controlled deliverability test. Check SPF, DKIM and DMARC, suppression handling and reporting using a consented sample. No product is a measured winner here.
How to choose
A newsletter, ecommerce program and sales nurture sequence require different data. Check list portability, connectors, consent and the cost of contact/send growth. Recreate one representative campaign and agree which conversion or engagement metrics matter before subscribing.
Related StackReporter guides
- best email marketing software
- email marketing for small business
- free email marketing tools
- Klaviyo review
- Klaviyo vs Mailchimp
- Mailchimp review
Sources and methodology
StackReporter compares published documentation, plan descriptions and review sources. We did not conduct hands-on performance, uptime, payroll-accuracy or deliverability testing for this article. Recommendations reflect workflow fit and documented trade-offs, not guaranteed outcomes. Prices and eligibility can change; confirm exact terms before buying.
We may earn a commission from eligible partner links. Editorial sources are not affiliate offers; commercial relationships do not determine conclusions. See FTC guidance below.