The best Plunk alternatives

7 tools to consider instead of Plunk, compared on price, free plan and features, with what each one does well and where it falls short.

TL;DR

  1. 1Fromly · SaaS teams on Supabase and Stripe who want emails driven by product data.
  2. 2Sequenzy · Teams who want one broad platform, with forms, A/B tests, SMS and revenue attribution included.
  3. 3Resend · Developers who mostly send transactional email from code.
  4. 4SendGrid · Companies sending high volumes of transactional email who want an established provider.
  5. 5Mailgun · Engineering teams sending large volumes of transactional email.
  6. 6Brevo · Small businesses who want email, SMS and a CRM in one subscription.
  7. 7Kit · Creators and newsletter writers who sell to their audience.

Why look for a Plunk alternative?

  • Emails on the free plan carry Plunk branding
  • Workflows start from events your code sends, and you would rather have your Supabase users and Stripe billing arrive on their own
  • You need features its pages do not list, such as A/B testing, signup forms or SMS
  • You only send transactional email at high volume, where a volume plan costs less than $0.001 per email

7 Plunk alternatives

  1. 1.Fromly

    Free, then $0.001 per email

    Email marketing for SaaS: connects to Supabase and Stripe so emails follow what users actually do, with campaigns, automations and a transactional API.

    Best for saaS teams on Supabase and Stripe who want emails driven by product data.

    Pros

    • Supabase sign-ups and Stripe billing on every contact, with no code
    • Pay per email from the first one, unlimited contacts
    • Each workspace sends under its own reputation

    Cons

    • No A/B testing, signup forms or SMS yet
    • Stripe is the only billing tool connected today
  2. 2.Sequenzy

    $19/mo for 15,000 emails

    An all-in-one email platform for SaaS and ecommerce: campaigns, automations, transactional API, SMS and a shared inbox.

    Best for teams who want one broad platform, with forms, A/B tests, SMS and revenue attribution included.

    Pros

    • A very broad feature set on every plan, free included
    • 2,500 free emails a month
    • From about 30,000 emails a month, as cheap as Fromly or cheaper

    Cons

    • Prices move in tiers: 16,000 emails cost the 30,000 tier
    • A large product to learn when you only need a few flows
  3. 3.Resend

    $20/mo for 50,000 emails

    An email API built for developers, with broadcasts and automations on top.

    Best for developers who mostly send transactional email from code.

    Pros

    • A polished developer experience: SDKs in many languages, React Email and a test mode
    • 3,000 free transactional emails a month
    • Above about 20,000 transactional emails a month, cheaper than Fromly: $35 for 100,000

    Cons

    • Marketing email is a separate plan, priced by contacts
    • The free plan stops at 100 emails a day
    • Automations are billed per run beyond the free 10,000
  4. 4.SendGrid

    $19.95/mo (Essentials)

    Twilio's email API and SMTP relay, one of the longest-running sending services, with a separate marketing product.

    Best for companies sending high volumes of transactional email who want an established provider.

    Pros

    • Built and proven for very high volumes, with a 99.99% uptime SLA
    • A dedicated IP included from the Pro plan
    • Part of Twilio, alongside SMS and voice

    Cons

    • No lasting free plan, only a 60-day trial
    • Marketing campaigns are a separate product and plan
    • One teammate only on Essentials
  5. 5.Mailgun

    $15/mo for 10,000 emails

    An email API and SMTP relay for developers sending at high volume.

    Best for engineering teams sending large volumes of transactional email.

    Pros

    • Cheaper than Fromly from 50,000 emails a month: $35 against $50, and $90 against $100 at 100,000
    • Built for very high volumes, with dedicated IPs, US or EU hosting and an uptime SLA
    • Email validation, inbound routing and inbox previews from the same vendor

    Cons

    • An API, not a marketing tool: the page says there is no send button, and no automations are listed
    • One sending domain and one day of logs on Free and Basic
    • No firm price for 500,000 emails without overage or a sales quote
  6. 6.Brevo

    $9/mo for 5,000 emails

    A marketing suite with email, SMS, WhatsApp, a CRM and transactional email.

    Best for small businesses who want email, SMS and a CRM in one subscription.

    Pros

    • Email, SMS, WhatsApp, push and a CRM under one roof
    • Cheaper than Fromly from about 100,000 emails a month: $82 on Starter against $100
    • A/B testing, forms, landing pages and revenue reports, which Fromly does not have

    Cons

    • Automation starts on Standard: 10,000 emails a month cost $35 there
    • Prices move in tiers: 10,001 emails on Starter cost the 15,000 tier, $25
    • Shared IPs by default; a dedicated IP only on Enterprise
  7. 7.Kit

    $33/mo for 1,000 subscribers (billed yearly)

    Email marketing for creators (formerly ConvertKit): newsletters, landing pages and selling digital products.

    Best for creators and newsletter writers who sell to their audience.

    Pros

    • Free up to 10,000 subscribers, with unlimited forms and landing pages
    • No send limits on any plan, so a frequent newsletter costs no more
    • Built-in selling of digital products, paid newsletters and subscriptions

    Cons

    • Priced by subscribers: a growing list costs more even if you email it less
    • No automations or sequences on the free plan
    • Made for creators, not for product data from a SaaS

Side by side

ToolPricingStarts at
Fromly$0.001 per email, first 1,000 freeFree, then $0.001 per email
SequenzyFree up to 2,500 emails, then volume tiers$19/mo for 15,000 emails
ResendTransactional plans by volume, 3,000 free; marketing priced by contacts$20/mo for 50,000 emails
SendGridPlans by volume, 60-day free trial$19.95/mo (Essentials)
MailgunPlans by volume, 100 emails a day free$15/mo for 10,000 emails
BrevoPlans by email volume, free with a daily cap$9/mo for 5,000 emails
KitPriced by subscribers, no send limits$33/mo for 1,000 subscribers (billed yearly)
Plunk(for reference)$0.001 per email, free plan up to 1,000Free, then $0.001 per email

FAQ

Plunk alternatives: questions, answered

What is the best Plunk alternative for SaaS?
It depends on what you need. Fromly costs the same as Plunk and fits a SaaS built on Supabase and Stripe that wants emails driven by product data. Sequenzy is broader, with forms, A/B tests and SMS. Resend suits teams that mostly send transactional email from code.
Is there a cheaper alternative to Plunk?
Fromly costs exactly the same. For transactional email alone, Resend Pro is $20 for 50,000 emails and $35 for 100,000, cheaper than $0.001 per email above 20,000. Self-hosting Plunk has no per-email cost at all.
Which Plunk alternative has a free plan?
Fromly offers 1,000 emails at sign-up, Sequenzy is free up to 2,500 and Resend up to 3,000 transactional emails (100 a day). Brevo allows 300 emails a day. SendGrid only offers a 60-day trial.

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