Overview
Selzy and Brevo are both affordable marketing platforms. For our take on each, see our Selzy comparison and Brevo comparison.
Use-case matchups
| Need | Better fit | Why |
|---|---|---|
| AI-assisted email creation | Selzy | Selzy has the stronger AI builder, assistant, template, and image tooling. |
| Email plus SMS, WhatsApp, live chat, CRM, and transactional email | Brevo | Brevo is the broader multi-channel platform. |
| Large contact list with moderate sending | Brevo | Unlimited contacts can be cheaper when volume is controlled. |
| Smaller list with frequent email sends | Selzy | Unlimited emails can work if send frequency is high enough. |
| SaaS transactional plus lifecycle email | Sequenzy | Stripe-triggered lifecycle email is outside both tools' core positioning. |
Best Fit by Channel Strategy
Best email platform for AI-assisted campaign production
Selzy fits teams that mainly need email campaigns and want AI help for writing, templates, and images. It makes the most sense when send volume is high and the channel mix stays email-first.
Best multi-channel marketing platform for large contact databases
Brevo is the better fit for teams managing big lists across email, SMS, WhatsApp, live chat, CRM, and transactional email. Its unlimited-contact model is strongest when contact count is high but email volume is controlled.
Best SaaS email platform for lifecycle and transactional messages
Sequenzy fits SaaS teams that care less about SMS and WhatsApp and more about Stripe-aware onboarding, lifecycle campaigns, newsletters, and transactional email in one workflow.
Brevo's Multi-Channel Advantage
Brevo includes email, SMS, WhatsApp, live chat, CRM, and transactional email in one platform with unlimited contacts. Selzy is email-only with a Telegram chatbot on higher plans. For a complete marketing stack, Brevo is dramatically more capable.
Selzy's AI Edge
Selzy's AI features are genuinely useful. AI email builder, an assistant that can translate, proofread, or write copy, an AI template generator, and AI image creation. If you want AI to help create better emails faster, Selzy's toolset is more developed.
The Sequenzy Alternative
For SaaS founders needing transactional email alongside marketing, Sequenzy combines transactional email and marketing campaigns with Stripe integration at $49/month.
Pricing reality
Brevo is cheaper at the cited 10k-contact comparison point because it charges around email volume with unlimited contacts. Selzy is more expensive at 10k contacts but includes unlimited email sends, so the math changes if your send frequency is unusually high.
Before buying, model contacts, monthly send volume, SMS/WhatsApp usage, transactional email needs, automation tier, AI requirements, and whether a CRM or live chat layer replaces other tools.
Sequenzy's $49/month comparison is relevant only if the team needs SaaS marketing plus transactional email and Stripe events, not if the buying reason is WhatsApp, live chat, or broad SMB CRM.
Review signals
The reviews on this page line up with the feature split. Selzy reviewers praise AI creation tools and email-only simplicity, while warning about missing transactional email and channels. Brevo reviewers praise replacing multiple tools, unlimited contacts, and multi-channel capability, while warning that AI features are less developed.
Use that as the demo script: Selzy should prove content speed and email workflow; Brevo should prove channel coordination, transactional sending, CRM, and real pricing with add-ons.
Unlimited Contacts vs Unlimited Emails
The pricing model difference is significant. Brevo charges per email volume with unlimited contacts. Selzy charges per contact with unlimited emails. This creates different cost dynamics depending on your sending patterns.
If you have a large contact list but send infrequently (monthly newsletter to 50,000 contacts), Brevo's unlimited contacts model saves money. If you have a smaller list but send frequently (daily emails to 5,000 contacts), Selzy's unlimited emails model might work better. Most businesses fall somewhere in between.
At 10,000 contacts, Brevo's $25/month for 50,000 emails beats Selzy's ~$55/month for unlimited emails. The math only favors Selzy if you send more than 50,000 emails per month to 10,000 contacts, which is five emails per contact per month. Few businesses send that frequently.
The Transactional Email Question
Brevo includes transactional email on every plan, which is a significant advantage for businesses that need password resets, order confirmations, or account notifications alongside marketing campaigns. Running transactional and marketing email from one platform simplifies infrastructure and provides unified analytics.
Selzy has no transactional email capability. If you need transactional messages, you need a second service like SendGrid, Postmark, or Resend. This adds cost, complexity, and another platform to manage. For businesses that need both types of email, Brevo eliminates this problem entirely.
For SaaS companies specifically, Sequenzy also combines transactional and marketing email with the added benefit of native Stripe integration for subscription-based automation.
Channel Strategy for Growing Businesses
As businesses grow, single-channel email marketing often hits diminishing returns. Open rates plateau, click rates stabilize, and subscriber fatigue sets in. Multi-channel marketing through SMS, WhatsApp, and live chat provides additional touchpoints that can re-engage subscribers who have tuned out email.
Brevo's multi-channel capabilities let you coordinate messages across channels from one platform. A welcome email followed by a WhatsApp message for high-value prospects, or an SMS reminder for abandoned carts that email did not recover. These cross-channel workflows increase total engagement and conversion rates.
Selzy's email-only approach works for businesses where email is sufficient, but limits your growth options. Moving to a multi-channel strategy later means migrating to a new platform, which is always disruptive. Consider whether you will need additional channels within the next year before committing to an email-only tool. Use our email deliverability guide to maximize the impact of whichever platform you choose.
Migration checklist
| Step | What to confirm |
|---|---|
| Contacts and consent | Export contacts, lists, tags, segments, custom fields, suppressions, unsubscribes, bounces, and consent source. |
| Channel scope | Decide whether SMS, WhatsApp, live chat, Telegram chatbots, and transactional email move together or remain separate. |
| Automations | Rebuild welcome, nurture, promotional, transactional, chatbot, and suppression workflows in the target platform. |
| Templates and AI assets | Move templates, brand assets, generated images, content prompts, forms, and landing pages. |
| Sending setup | Reverify SPF, DKIM, DMARC, sender identities, tracking links, unsubscribe behavior, and transactional event tests. |
Decision checklist
- Choose Selzy if AI-assisted email creation and unlimited sends matter more than channels.
- Choose Brevo if multi-channel messaging, unlimited contacts, transactional email, and CRM matter more.
- Avoid Selzy if SMS, WhatsApp, CRM, or transactional email are required.
- Avoid Brevo if the main need is advanced AI content creation for email.
- Consider Sequenzy if SaaS lifecycle and Stripe-triggered transactional plus marketing email are central.
