Notix vs SendGrid.

Pricing.

SendGrid retired its free plan from 27 May 2025 (Twilio changelog). A new account gets a 60-day trial of 100 emails a day, then Essentials from $19.95 a month for 50,000 to 100,000 emails, Pro from $89.95 with dedicated IPs, and Premier at custom pricing for more than 5 million a month. Notix Free is 5,000 emails a month and 200 a day with no card and no end date; Pro is $15 a month for 50,000 emails, and usage past that is metered on the same invoice. Under 100,000 emails Notix costs less; above that, SendGrid’s volume tiers are the number to compare against your own send count.

Sending API.

Both are a JSON endpoint that takes from, to, subject and a body, and both accept SMTP on every plan. SendGrid’s v3 API adds personalizations, dynamic templates and scheduled sends. Notix adds idempotency keys on every send (a retried request returns the original message rather than a duplicate), batch and scheduled sends, templates, and a delivery record you can read back by id. Neither requires a client library; the difference on a normal transactional call is the header you set and the host you post to. Read the transactional email API page for the Notix side of the call.

Deliverability tooling.

SendGrid offers an email validation API on Pro and above, and its dedicated IPs and managed warm-up are how high-volume senders protect reputation. Notix has no dedicated IPs. It has a pre-send deliverability check API that scores a message before it goes out, domain verification with SPF, DKIM and DMARC, and delivery, bounce and complaint analytics per domain. Both suppress bounces and complaints automatically; Notix shares one suppression list across transactional and marketing mail, so an address that unsubscribes from a newsletter never receives a campaign again, and a hard bounce is honoured everywhere.

Marketing features.

SendGrid sells Marketing Campaigns as a separate product with its own pricing, an automation builder, A/B testing and a large contact ceiling. Notix includes contact books, double opt-in, templates, campaigns and journeys in the same account and the same invoice as transactional mail. It does not have SendGrid’s A/B tests or its automation editor today. A team whose marketing programme is the heavier side should weigh that section of the table more than the price row.

SDKs.

SendGrid publishes libraries for Node, Python, PHP, Ruby, Go, Java and C#. Notix ships TypeScript, Python, Go and PHP, and documents the plain HTTP calls for everything else. If your stack is Ruby, Java or .NET, Notix is a fetch call rather than an installed package; the request is small enough that most teams find that acceptable, but it is a real difference and the table says so. The email API page shows the same call in five languages.

One-time codes.

SendGrid sends the email you compose; generating a code, storing it, expiring it and checking the user’s answer are yours to build, and SMS codes mean a second Twilio product. Notix has a verification API that does all four in two calls, by email or by SMS from the same account, with a risk score on the request. If sign-in or sign-up codes are part of your product, this row matters; if you never send a code, skip it.

Billing regions.

SendGrid bills in US dollars by card. Notix bills in US dollars by card too, and, for teams in Nigeria and Kenya, from a prepaid wallet in naira or shillings funded by local payment methods; the same wallet pays for SMS. A team without a dollar card can run Notix Pro; it cannot run SendGrid Essentials.

Support and SLA.

SendGrid states a service level agreement for Pro and Premier plans and offers tiered support with dedicated account management at the top. Notix states a 99.9 percent monthly uptime SLA on Pro, with the credit schedule written on the pricing page, and support by email; there is no enterprise support tier today. Neither figure here is a claim about measured uptime; both are the commitments each vendor publishes.