Startup alternatives guide
8 Brevo Alternatives for Startups in 2026
Match the email platform to the messages your startup actually sends, and to the price you will pay at your real list size.
For a startup moving SaaS lifecycle email out of Brevo, Customer.io is a strong alternative when product events should drive the next message. Its Essentials plan is $100 a month for 5,000 profiles, so the fit is clearest when an event taxonomy and identity model are already part of the product stack.
Brevo covers newsletters, automation and transactional sending in one account, which is why many startups begin there. The reasons to look elsewhere are usually specific: billing events that should trigger mail, product usage that should decide the next step, contact counts that grow faster than sends, or a need to keep application mail on a separate sender. This guide compares eight alternatives on those points. Prices are the figures published on each vendor's pricing page when it was checked on 7 October 2026.
Where Brevo fits and where startups outgrow it
Brevo's free plan allows 300 email sends a day for up to 100,000 contacts. Its Starter plan starts at $9 for 5,000 emails a month with no daily sending limit, and Standard starts at $18 on the same 5,000-email base and adds automation, A/B testing and advanced reports. Those numbers are attractive for a company that mails a large list in campaigns.
Startups usually feel the friction elsewhere. A trial ends and nobody emails the account owner. A card fails and the recovery message goes to a generic inbox. A sales lead needs to know which emails were opened before the call. A product team wants onboarding steps keyed to what a user did in the app, not to a date on a calendar. Each of these needs a different data model, and that is where the alternatives differ.
The migration question is therefore not which tool is cheapest on the pricing page. It is which messages must be triggered by which events, and who owns each message class. Keep that question in front of you as you read the comparison below.
Comparison at a glance
The table gives each alternative's best use case, its entry price with the plan and billing basis, and the limitation that matters most for a startup.
| Alternative | Best for | Starting price (plan and billing) | Key limitation |
|---|---|---|---|
| Customer.io | Product-event journeys | Essentials at $100 a month; 10,000-profile plan at $145 a month, billed monthly | Needs a maintained event naming scheme and clean user identity |
| ActiveCampaign | Sales-led nurture and lead scoring | Starter at $15 a month for 1,000 contacts, monthly or annual | Cost rises with contact count; configuration takes time |
| MailerLite | Newsletters and simple nurture | Free up to 250 subscribers; Comfort at $12 a month, or $10.80 a month billed yearly | Limited product-event and CRM depth |
| Loops | Lean product updates and onboarding | Free Early Stage plan; Growing Audience at $99 a month | Free plan carries a Loops footer and send caps |
| Userlist | Account-aware B2B messaging | Basic at $149 a month for up to 10,000 users | Price scales with user count; transactional mail stays separate |
| Mailchimp | Familiar campaign operations | Free up to 250 contacts and 500 sends a month; Standard at $20 a month for 500 contacts | Cost climbs steeply through contact tiers |
| Resend | Developer-run application and product email | Free up to 3,000 emails a month; Pro at $20 a month for 50,000 emails | Built around API-driven sending; marketing plans are secondary |
| Postmark | Critical transactional delivery | Free up to 100 emails a month; Basic at $15 a month from 10,000 emails | Not designed for promotional campaigns |
How to read the prices
Vendors meter on two different axes. Contact-based tools, including ActiveCampaign, Customer.io, MailerLite, Mailchimp, Userlist and Resend's marketing plans, charge for the people stored in the account. Volume-based tools, including Brevo, Postmark and Resend's sending plans, charge for emails sent and generally leave contacts unlimited.
A startup with a large free-user base and few sends per user may prefer volume pricing. A startup with a smaller paying list and heavy sending may prefer contact pricing. Model both against your own numbers before choosing, and remember that a free plan is only useful while your list and send volume stay under its caps.
Cost at realistic list sizes
The next table shows contact-priced plans at three list sizes. Where a vendor does not publish a price for a given size, the row is left out rather than estimated.
| List size | Vendor and plan | Monthly price | Billing and limits |
|---|---|---|---|
| 500 contacts | MailerLite Comfort (500-subscriber tier) | $12 | Monthly billing; $10.80 a month billed yearly; monthly allowance is 10 times the subscriber ceiling, so 5,000 emails |
| 500 contacts | Mailchimp Standard (500-contact selector) | $20 | Monthly billing; up to 6,000 emails a month at this selector |
| 500 contacts | Resend Marketing Free (up to 1,000 contacts) | $0 | Unlimited broadcast sending, 10,000 automation runs, 3 segments |
| 1,000 contacts | ActiveCampaign Starter (starting price at 1,000 contacts) | $15 | Same per-month figure whether billed monthly or annually |
| 1,000 contacts | Loops Early Stage | $0 | Up to 4,000 sends in any rolling 30 days, to the 1,000 newest contacts; Loops footer |
| 5,000 contacts | Resend Pro marketing (5,000 contacts) | $40 | Unlimited broadcast sending and unlimited segments |
| 5,000 contacts | Mailchimp Standard (2,501 to 5,000 contacts) | $100 | Up to 60,000 emails a month |
| 10,000 contacts | Customer.io Essentials (10,000 profiles) | $145 | Billed monthly; profile-based tier |
| 10,000 contacts | Userlist Basic (up to 10,000 users) | $149 | Monthly; segments for users and companies |
| 10,000 contacts | Resend Pro marketing (10,000 contacts) | $80 | Marketing plan at this contact count |
| 10,000 contacts | Mailchimp Standard (5,001 to 10,000 contacts) | $135 | Up to 120,000 emails a month |
Cost at email volumes
Volume-priced plans are easier to read when each row is a monthly send count. Yearly figures are shown only where the vendor states them. Brevo's published tiers make the monthly send limit explicit, while Postmark and Resend publish separate delivery plans.
| Vendor and plan | Price | Volume basis |
|---|---|---|
| Brevo Free | $0 a month | 300 sends a day; up to 100,000 contacts |
| Brevo Starter | $9 a month | From 5,000 emails a month; no daily sending limit |
| Brevo Standard | $18 a month | From 5,000 emails a month; automation, A/B testing, advanced reports |
| Postmark Basic | $15 a month | Starting at 10,000 emails a month |
| Postmark Basic at 50,000 emails | $55 a month | 50,000 emails a month |
| Resend Pro | $20 a month | 50,000 emails a month |
| Resend Scale | $90 a month | 100,000 emails a month |
1. Customer.io: product-event journeys
Customer.io suits a SaaS team whose messages depend on what users do inside the product: an event that marks activation, a feature that is never used, a teammate invitation that was never accepted. Its workflows branch on events and attributes, which makes it a strong choice for behavioral onboarding and for re-engagement based on real usage.
The limitation is data discipline. Event branching is only as reliable as the event names and user identifiers behind it. A startup needs an agreed event taxonomy, a stable user ID, and one owner who changes both carefully. Without that, a journey built in a week can quietly send to the wrong audience for months.
Eligible early-stage companies that have raised under $10 million can receive 12 months free through the Startup Program, which is decided on eligibility. The paid Essentials plan is $100 a month and includes the visual workflow builder, email and community support, and basic data integrations. Profile-based Essentials tiers start at $145 a month for 10,000 profiles and reach $505 a month and up at 50,000 profiles. Premium, with custom profile volume and premium support, is listed at $1,000 a month.
Price: Essentials $100 a month; Essentials at 10,000 profiles $145 a month; at 20,000 profiles $235 a month; at 30,000 profiles $325 a month; billed monthly. Premium $1,000 a month. See the Customer.io pricing page for current terms.
2. ActiveCampaign: sales-led nurture and scoring
ActiveCampaign fits a startup whose growth depends on sales conversations: lead scoring, branching nurture, and a CRM-style view of who was contacted and when. Its Starter plan includes email marketing, marketing automation, a standard CRM and ecommerce integrations, so a founder-led sales motion can be run from one account.
For SaaS lifecycle billing, the plan descriptions do not list billing-event triggers, so confirm them in the integration documentation before committing to a migration. Configuration takes longer than a single-purpose lifecycle tool, and cost rises as the contact count grows.
Price: Starter $15 a month, Plus $49 a month, Pro $79 a month and Enterprise $145 a month. Each starting figure applies to 1,000 contacts and scales with the contact count you select. The monthly and annual figures shown are the same. There is no free plan, but a free trial is available. See the ActiveCampaign pricing page.
3. MailerLite: newsletters and simple nurture
MailerLite is a good Brevo alternative when most of a startup's mail is a newsletter with a light welcome series. Its free plan covers up to 250 subscribers and 2,500 emails a month, which is enough for an early newsletter test and a short onboarding sequence.
It falls short when a program needs product events, account relationships or billing triggers. Its strength is simplicity. A startup that needs branching on product usage should look at Customer.io or Userlist first, and treat MailerLite as a deliberate simplification rather than a general lifecycle engine.
Price: Comfort starts at $12 a month for the 500-subscriber tier, or $10.80 a month billed yearly, with a monthly allowance of ten times the subscriber ceiling (5,000 emails at 500 subscribers). Power is $25 a month, or $22.50 a month billed yearly, with unlimited monthly emails. See the MailerLite pricing page.
4. Loops: lean product email
Loops suits a SaaS team that wants product updates, onboarding messages and simple campaigns in one place without a large platform. Its Early Stage plan is free and includes all features, which makes it a low-risk place to test whether a startup needs more.
The limits decide whether the free plan lasts. It allows up to 4,000 sends in any rolling 30 days, to the 1,000 newest contacts, and it carries a Loops footer. Sending is capped at 10 emails per second. The Growing Audience plan, at $99 a month, allows unlimited sends to subscribers and transactional sends to users outside the audience. A startup with a growing contact base should model that move early, because the change from free to paid is a step rather than a slope.
Loops has less breadth than a CRM-led or commerce-led platform. For sales scoring or product-behavior journeys with many branches, the tools above are a better match.
Price: Early Stage $0 (up to 4,000 sends in any rolling 30 days); Growing Audience $99 a month. See the Loops pricing page.
5. Userlist: account-aware B2B messaging
Userlist is relevant when messages should be addressed to companies as well as to individuals. Its segments cover users and companies, and it supports in-app messages alongside lifecycle email. In B2B SaaS, a message to an account administrator is a different decision from a message to one team member, and Userlist is organized around that split.
The migration work is identity. Map users to companies, decide which person receives account-level mail, and keep consent and suppression consistent across both. Templates are the easy part. Keep receipts and security notices on a separate transactional stream, whichever marketing tool you choose.
Price: Basic at $149 a month for up to 10,000 users; Professional at $349 a month for the same user count, adding A/B split testing and conversion goals; Enterprise with custom message limits. See the Userlist pricing page.
6. Mailchimp: familiar campaign operations
Mailchimp suits a startup whose team already knows its editor and wants a broad campaign tool for newsletters and launch announcements. Its free plan covers one audience, up to 250 contacts and 500 sends a month, with a daily cap of 250.
Costs climb steeply as the list grows, and the send allowance scales with contact tiers rather than with the product events you might want to act on. Product-triggered journeys and account-aware rules should be tested in a pilot rather than assumed to work.
Price: Free for up to 250 contacts; Standard at $20 a month for the 500-contact selector, with up to 6,000 emails a month; $100 a month for 2,501 to 5,000 contacts, with up to 60,000 emails a month; $135 a month for 5,001 to 10,000 contacts, with up to 120,000 emails a month. A 14-day Standard trial is offered. See the Mailchimp pricing page.
7. Resend: developer-run application and product email
Resend suits a startup whose engineering team wants application email sent through an API, with code-owned templates and sending domains. Its free plan covers 3,000 emails a month, with a limit of 100 a day across 3 domains, which is enough to separate product mail from campaigns early.
Resend is not a replacement for lifecycle automation. Its marketing plans add contact-based pricing and segments for broadcasts, but the core product is API-led sending. If your program depends on complex journeys, compare it with the lifecycle tools above. Treat Resend as the delivery boundary for application mail.
Price: Free for 3,000 emails a month; Pro at $20 a month for 50,000 emails; Scale at $90 a month for 100,000 emails. Marketing plans: free at 1,000 contacts, with unlimited broadcast sending and 10,000 automation runs; $40 a month at 5,000 contacts; $80 a month at 10,000 contacts. See the Resend pricing page.
8. Postmark: critical transactional delivery
Postmark fits when receipts, password resets and operational alerts need a dedicated stream that is separate from campaigns. Message streams keep message classes apart, which makes it easier to explain what each sender is for when a complaint or deliverability question arrives.
It is not a promotional campaign tool. A startup that wants nurture, segmentation and newsletters should pair Postmark with a marketing platform rather than stretch it into one.
Price: Free for 100 emails a month; Basic at $15 a month starting at 10,000 emails, with Pro at $16.50 and Platform at $18 at the same starting volume; Basic at $55 a month for 50,000 emails. See the Postmark pricing page.
Which alternative to start with
The decision table matches each common startup need to a starting point and gives the reason in the plan details.
| If you need | Start with | Because |
|---|---|---|
| Journeys branched on in-app behavior | Customer.io | Event-based workflows; Startup Program offers 12 months free to eligible companies |
| Sales-led scoring and CRM-style nurture | ActiveCampaign | Starter at $15 a month for 1,000 contacts; Plus adds standard segmentation and landing pages |
| A newsletter with a few hundred subscribers | MailerLite | Free for up to 250 subscribers and 2,500 emails a month |
| Messages addressed to companies and their users | Userlist | Segments for users and companies; Basic at $149 a month for 10,000 users |
| Early product updates without a large platform | Loops | Free Early Stage plan with all features; Growing Audience at $99 a month |
| An existing Mailchimp program | Mailchimp | Familiar editor; Standard at $20 a month for 500 contacts |
| Application mail kept separate from campaigns | Postmark or Resend | Resend's free plan covers 3,000 emails a month; Postmark's free plan covers 100 and Basic starts at $15 for 10,000 |
How to choose
Start with message classes, not tools. List onboarding, billing notices, security alerts, newsletters, sales nurture and product updates. Each class needs one owner and one sending identity, and some classes should not share a stream with campaigns at all.
Next, price by the axis that will grow fastest. For many startups the contact list grows faster than the number of sends, which favors volume pricing. For others, a large base of users who receive few emails each favors contact pricing. The cost tables above show both models at real sizes.
Then check the event model. A tool is only useful for lifecycle mail if it can receive your billing and product events with stable names, and if a customer who cancels or unsubscribes is removed from the right flows automatically.
Finally, pilot one flow before committing. A payment-recovery flow, a trial-ending flow or a welcome series makes a good first test because success or failure shows up quickly in the account data.
Migration checklist from Brevo
- Export contacts and the suppression list from Brevo, and reconcile the counts before you import anything.
- Authenticate the sending domain with the DNS records the new vendor provides, and keep the old records in place until the cutover is finished.
- Rebuild one flow first, such as a welcome or onboarding series, with the same trigger and the same exit condition.
- Run both systems in parallel for a fixed window and compare delivery, unsubscribes and suppression hits.
- Move billing-triggered mail last. Test each failed-payment path with a test account, including the link target and the message copy.
- Document which automations were rebuilt, which were retired and who owns each message class.
- Turn off the old Brevo automations only after the parallel window closes and the suppression lists match.
Brevo alternatives FAQ
Which Brevo alternatives have a free plan?
Several do. MailerLite includes up to 250 subscribers and 2,500 emails a month, Mailchimp includes up to 250 contacts and 500 sends a month, Loops offers up to 4,000 sends in any rolling 30 days to its 1,000 newest contacts, Resend includes 3,000 emails a month, and Postmark includes 100 emails a month. Brevo's free plan allows 300 sends a day for up to 100,000 contacts. The limits measure different things, so compare them against your own volume.
Do I need a separate transactional email provider?
Not always, but it is safer when receipts, password resets and security alerts must keep arriving even if a campaign causes a complaint spike or a suppression problem. Postmark and Resend are built for that separation, and most marketing platforms in this guide leave transactional sending to a different stream.
How do I compare contact-based pricing with email-volume pricing?
Start with two numbers: how many contacts you store, and how many emails you send each month. Contact-based tools such as ActiveCampaign, Customer.io, MailerLite and Userlist scale with the first number. Volume-based tools such as Brevo and Postmark scale with the second. The two figures are not directly comparable, so price your real list against each vendor's plan table rather than comparing headline prices.
How long is the Customer.io startup program?
Eligible early-stage companies that have raised under $10 million can receive 12 months free through Customer.io's Startup Program. Eligibility is decided by the vendor, so check the terms on its pricing page before you plan a migration around the free period.
Should a startup move everything off Brevo at once?
Usually not. Move one message class at a time, starting with the lowest-risk flow such as a welcome series, then run both systems in parallel. Move billing-triggered mail last, because a broken failed-payment message costs revenue directly.
Continue with the startup alternatives hub, automation use cases, and transactional email platforms.