Overview

Selzy and Brevo are both affordable marketing platforms. For our take on each, see our Selzy comparison and Brevo comparison.

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.

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.