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Notix vs Resend.

Notix and Resend send the same JSON email call through the same kind of platform, and both have a free plan with no card: 5,000emails a month on Notix, 3,000 on Resend. They part ways after that: Resend has nine SDKs and React Email; Notix has an OTP API, a pre-send deliverability check, marketing mail on a shared suppression list, for $15 a month rather than $20 at 50,000 emails. Which one fits depends on which of those lists you will actually use.

At a glance

The two services, criterion by criterion.

Resend's figures were read from its pricing page on 2026-09-12; the date is repeated under the table. Notix figures come from its own pricing page.

Figures read from resend.com on 2026-09-12; Notix figures come from its own pricing page.
CriterionResendNotix
Free tier3,000 emails a month, 100 a day, 1 domain5,000 emails a month, 200 a day, no card, no end date
Entry paid planPro $20 a monthPro $15 a month
Included on that plan50,000 emails a month50,000 emails, usage past that metered on the same invoice
SMTP relayYes, on every planYes, on every plan
SDKsNode, Python, PHP, Ruby, Go, Java, Laravel, Rust, .NETTypeScript, Python, Go, PHP
WebhooksYesYes, signed, for email, contact and domain events
OTP / verification APINoYes, email and SMS codes
Deliverability check before sendingNoYes, a pre-send check API
Billing outside USDUSD by cardUSD by card; naira and shillings from a prepaid wallet
SLANot stated on the pricing page99.9% on Pro, credits on the pricing page
Prices and limits read from the vendors' own pages: resend.com on 2026-09-12. Notix figures are from its own pricing page.

Pricing.

Notix Free stops at 5,000 emails a month, Resend's at 3,000, with daily caps of 200 and 100; neither asks for a card. Resend allows one sending domain on Free; Notix allows 1. The paid step is where they differ: Resend Pro is $20 a month for 50,000 emails, Notix Pro is $15 for 50,000. Past the allowance, Resend moves you to a larger tier while Notix meters the overage on the same invoice at the rate on the pricing page. At 10,000 or 50,000 emails the gap is $5 a month; at 100,000 it depends on what Resend's next tier costs on the day.

Sending API.

The send call is close to identical: a JSON body with from, to, subject and html, an API key in the header, an idempotency key to make retries safe. Both return a message id you can read back. Notix adds batch sends and scheduled sends on the same endpoint family, and its email API exposes contacts, templates and campaigns over the same key. Resend has a broadcasts API for its marketing side. For a plain transactional send, code written for one runs on the other after a client swap.

Deliverability tooling.

Both verify a domain with SPF, DKIM and DMARC records and both report bounces and complaints. Notix adds two things Resend does not have: a deliverability check you call before a send, which returns a spam score, missing headers and domain problems, and a suppression list shared between transactional and marketing mail, so a receipt never goes to an address that bounced a campaign. The transactional email API page describes both. Resend suppresses bounced addresses per account; the pre-send check is not something it offers.

Marketing features.

Resend has broadcasts, segments and automations for marketing mail, and its documentation assumes React Email for building messages. Notix has contact books with double opt-in, a template editor, campaigns and journeys, all in the same account as transactional sending and on the same suppression list. Both cover the common ground of a newsletter to a segment; the difference is that Notix treats the two kinds of mail as one product with one bounce list, and Resend treats them as two features side by side.

SDKs.

This one is Resend's. It ships official SDKs for Node, Python, PHP, Ruby, Go, Java, Laravel, Rust and .NET. Notix ships TypeScript, Python, Go and PHP; anything else calls the JSON endpoint with a plain HTTP client, which the docs show for curl. If your codebase is Ruby, Java, Rust or .NET and you want a typed client with releases you can pin, Resend has one today and Notix does not. If your stack is one of the four Notix covers, the two SDKs are interchangeable in shape.

One-time codes.

Resend sends the email you compose; generating a code, storing it, expiring it and checking the user's answer are yours to build. Notix has a verification API that does all four in two calls, by email or by SMS, with a risk score on the request. If sign-in or sign-up codes are part of your product, this is the largest practical difference between the two; if you never send a code, it is a row you can skip.

Billing regions.

Resend bills in US dollars by card. Notix bills in US dollars by card too, and additionally lets teams in Nigeria and Kenya fund a prepaid wallet in naira or shillings, from which Pro is charged each month, so a card that clears international charges is not required. The plan prices are the same everywhere; only the currency and the payment method differ. If you are billing from Lagos or Nairobi, this is often the deciding row.

Support and SLA.

Notix states a 99.9 percent uptime commitment on Pro, with the credit schedule written on the pricing page; the free plan is best effort. Resend's pricing page does not state an SLA figure for its Pro plan, so this page does not put one in its mouth. Both offer email support; neither publishes response times on the plans compared here.

Verdict

Choose by the list you will use.

Choose Resend if

  • You build templates in React Email and want the vendor's examples to match.
  • Your stack is Ruby, Java, Rust or .NET and you want an official typed SDK.
  • You want the better-known name, with more tutorials and community answers.

Choose Notix if

  • You send one-time codes and would rather not build the code, expiry and check yourself.
  • You want a deliverability check before a send and one suppression list across all mail.
  • You want $5 a month back at 50,000 emails.

Already decided? The switching from Resend page has the SDK and SMTP swap and the suppression import.

FAQ

Questions this comparison gets asked.

Is Notix cheaper than Resend?
At the 50,000-email line, yes: Notix Pro is $15 a month for 50,000 emails and Resend Pro is $20 for the same volume. Notix Free covers the first 5,000 emails a month at $0; Resend's free plan covers 3,000. Above 50,000, Notix meters the extra on the same invoice; Resend moves you to its next tier.
Which has more SDKs, Notix or Resend?
Resend. It publishes official SDKs for nine languages: Node, Python, PHP, Ruby, Go, Java, Laravel, Rust and .NET. Notix publishes four: TypeScript, Python, Go and PHP, and every other language uses the JSON endpoint directly. If a typed client for Ruby, Java, Rust or .NET matters to you, Resend has it and Notix does not.
Can I send OTP codes with Resend?
Resend sends the email you compose; generating the code, storing it, expiring it and checking it are yours to build. Notix has a verification API that does all four in two calls, by email or SMS. If one-time codes are a core part of your product, that is the largest practical difference between the two.
Does either service have an SLA?
Notix states a 99.9% uptime commitment on Pro with credits described on its pricing page. Resend does not state an SLA on its pricing page. Neither figure is a measurement of delivery speed; both are commitments about the API being up.
Can I pay for Notix or Resend without a US dollar card?
Notix accepts a card in dollars and also a prepaid wallet in naira or shillings for teams in Nigeria and Kenya, from which Pro is charged each month. Resend bills in US dollars by card. Neither price changes by region; only the way you can pay does.
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