# The best Plunk alternatives Web page: https://fromly.io/alternatives/plunk ## Why people 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 ## The alternatives ### Fromly 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. - Pricing: Your first 1,000 emails are free. After that, every email costs $0.001, prepaid. Unlimited contacts. - Strengths: 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 - Limits: No A/B testing, signup forms or SMS yet; Stripe is the only billing tool connected today - Website: https://fromly.io - Comparison: https://fromly.io/compare/fromly-vs-plunk ### Sequenzy 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. - Pricing: Free up to 2,500 emails, then volume tiers, from $19/mo for 15,000 emails - Strengths: 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 - Limits: Prices move in tiers: 16,000 emails cost the 30,000 tier; A large product to learn when you only need a few flows - Website: https://www.sequenzy.com - Comparison: https://fromly.io/compare/fromly-vs-sequenzy ### Resend An email API built for developers, with broadcasts and automations on top. - Best for: Developers who mostly send transactional email from code. - Pricing: Transactional plans by volume, 3,000 free; marketing priced by contacts, from $20/mo for 50,000 emails - Strengths: 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 - Limits: 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 - Website: https://resend.com - Comparison: https://fromly.io/compare/fromly-vs-resend ### SendGrid 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. - Pricing: Plans by volume, 60-day free trial, from $19.95/mo (Essentials) - Strengths: 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 - Limits: No lasting free plan, only a 60-day trial; Marketing campaigns are a separate product and plan; One teammate only on Essentials - Website: https://www.twilio.com/en-us/sendgrid - Comparison: https://fromly.io/compare/fromly-vs-sendgrid ### Mailgun An email API and SMTP relay for developers sending at high volume. - Best for: Engineering teams sending large volumes of transactional email. - Pricing: Plans by volume, 100 emails a day free, from $15/mo for 10,000 emails - Strengths: 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 - Limits: 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 - Website: https://www.mailgun.com - Comparison: https://fromly.io/compare/fromly-vs-mailgun ### Brevo 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. - Pricing: Plans by email volume, free with a daily cap, from $9/mo for 5,000 emails - Strengths: 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 - Limits: 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 - Website: https://www.brevo.com - Comparison: https://fromly.io/compare/fromly-vs-brevo ### Kit Email marketing for creators (formerly ConvertKit): newsletters, landing pages and selling digital products. - Best for: Creators and newsletter writers who sell to their audience. - Pricing: Priced by subscribers, no send limits, from $33/mo for 1,000 subscribers (billed yearly) - Strengths: 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 - Limits: 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 - Website: https://kit.com - Comparison: https://fromly.io/compare/fromly-vs-kit ## Frequently asked questions ### 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. ## Sources Prices and features of each tool were checked on its own website: Plunk on 2026-10-10, Sequenzy on 2026-10-10, Resend on 2026-10-10, SendGrid on 2026-10-10, Mailgun on 2026-10-10, Brevo on 2026-10-10, Kit on 2026-10-10.