Resend is the newer, developer-first service: a free plan that does not end, nine SDK languages, React Email, and a Pro plan at $20 for 50,000 emails. SendGrid is the incumbent: no free plan since May 2025, Essentials from $19.95, and above it the dedicated IPs, volume tiers and published SLA that high-volume senders buy. The table reads both from their own pricing pages, with the read date, and puts Notix in a separate third column so you can see where a smaller service with more in the box sits against each.
Resend’s figures come from resend.com/pricing, read on 2026-09-12. SendGrid’s come from Twilio’s Email API pricing page, read on 2026-09-13. The Notix column is read from its own pricing page and is there as a third option, not as the subject of this page.
| Criterion | Resend | SendGrid | Notix |
|---|---|---|---|
| Free tier | 3,000 emails a month, 100 a day, 1 domain | 60-day trial, 100 a day; sending stops when the trial ends (the free plan was retired from 27 May 2025) | 5,000 emails a month, 200 a day, no card, no end date |
| Entry paid plan | Pro $20 a month | Essentials from $19.95 a month | Pro $15 a month |
| Included on that plan | 50,000 emails a month | 50,000 to 100,000 emails a month on Essentials, volume-priced | 50,000 emails, usage past that metered on the same invoice |
| SMTP relay | Yes, on every plan | Yes | Yes, on every plan |
| SDKs | Node, Python, PHP, Ruby, Go, Java, Laravel, Rust, .NET | Node, Python, PHP, Ruby, Go, Java, C# | TypeScript, Python, Go, PHP |
| Webhooks | Yes | Yes | Yes, signed, for email, contact and domain events |
| OTP / verification API | No | No | Yes, email and SMS codes |
| Deliverability check before sending | No | Email validation API on Pro and above | Yes, a pre-send check API |
| Billing outside USD | USD by card | USD by card | USD by card; naira and shillings from a prepaid wallet |
| SLA | Not stated on the pricing page | Stated for Pro and Premier plans | 99.9% 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. | |||
This is the clearest difference. Resend’s free plan is 3,000 emails a month, 100 a day, on one domain, and it does not expire. SendGrid retired its free plan from 27 May 2025 (Twilio changelog); a new account gets a 60-day trial of 100 emails a day, and sending stops when the trial ends unless the account moves to a paid plan. A side project or a pre-launch product can live on Resend’s free plan indefinitely; on SendGrid it has two months.
Resend Pro is $20 a month for 50,000 emails. SendGrid Essentials starts at $19.95 a month and is volume-priced from 50,000 up to 100,000 emails. At 50,000 the two are within a dollar. At 100,000 SendGrid is still inside Essentials, while on Resend that volume is the next tier or overage; the exact step depends on the pricing page at your send count. Past a few hundred thousand a month, SendGrid’s Pro (from $89.95, with dedicated IPs) and Premier tiers are priced for that scale, and that is where its pricing is designed to win.
Both are a JSON endpoint that takes from, to, subject and a body, and both accept SMTP on every plan, so an existing SMTP integration moves to either with a credential change. SendGrid’s v3 API adds personalizations, dynamic templates and scheduled sends. Resend’s API is smaller and pairs with React Email for templates written as components. Neither requires a client library.
Resend publishes libraries for Node, Python, PHP, Ruby, Go, Java, Laravel, Rust and .NET. SendGrid publishes Node, Python, PHP, Ruby, Go, Java and C#. The overlap covers most stacks; Resend adds Rust and a first-party Laravel package, and React Email is the reason many React teams choose it. On a language neither covers, both are a plain HTTP call.
Both deliver webhooks for delivery, bounce and complaint events, and both suppress hard bounces and complaints automatically. SendGrid sells an email validation API on Pro and above, and its dedicated IPs and managed warm-up are how large senders protect reputation. Resend has no validation product and no dedicated IPs on the plans read for this table. Neither offers a pre-send deliverability check on the message itself.
Both bill in US dollars by card. SendGrid states a service level agreement for Pro and Premier plans; Resend’s pricing page does not state one. These are the commitments each vendor publishes, not measurements of either service’s uptime.
Pick Resend if you want a free plan that stays free, the wider SDK set, React Email, and you send under a few hundred thousand emails a month. Pick SendGrid if you already send at scale or plan to, want dedicated IPs with managed warm-up, need a published SLA, or already have Twilio as a vendor. At the entry price the two cost about the same; the choice is the free plan and the tooling around it against the volume tiers above it.
On the same criteria: a free plan of 5,000 emails a month and 200 a day with no card and no end date, Pro at $15 a month for 50,000 emails with usage past that metered on the same invoice, SMTP on every plan, TypeScript, Python, Go and PHP SDKs, signed webhooks, an OTP and verification API for email and SMS codes, a pre-send deliverability check, and billing in naira or shillings from a prepaid wallet as well as US dollars by card. It has fewer SDK languages than either and no dedicated IPs.
The full picture is on Notix vs Resend and Notix vs SendGrid.
Same free tier shape, $5 a month less at 50,000 emails, plus OTP and deliverability APIs and naira or shilling billing.
AlternativesA free plan that does not end after 60 days, a suppression import, and an API you can move to in an afternoon.
ComparePricing, sending API, deliverability tooling, SDKs and billing regions, side by side with a read date.
CompareWhat changes when you leave a 60-day trial for a free plan that stays, and where SendGrid's scale still wins.
CompareEvery vendor in one table with read dates, and a straight answer to which transactional email API a startup should pick.
NotixA free plan with no card, and Pro at $15 a month for 50,000 emails. Only sent volume is metered.
Notix is free to try without a card: verify a domain, copy an API key, send one message, and compare it against the two above on your own traffic.