Blog

What it costs to send a million transactional emails a month across Amazon SES, SendGrid, Resend, Mailgun and Postmark — and why the answer is almost always SES.

Payment fees are a percentage plus a fixed fee — so the effective rate you actually pay depends on your average order value. Here's the real cost across Stripe, PayPal, Square, Braintree and Adyen.

How the three leading authentication providers price per monthly active user — free tiers, per-MAU rates, and which is cheapest as your user base grows.

A head-to-head of Stripe (2.9% + $0.30) and standard PayPal Checkout (3.49% + $0.49) on real ticket sizes, plus when PayPal's higher fee is still worth paying.

A head-to-head of Twilio and Amazon SNS for US SMS — base per-message rates, the carrier fees both hide, free tiers, and when each one wins.

A normalized cost-per-1,000 comparison of Amazon SES, SendGrid, Resend, Mailgun and Postmark — and why the cheapest provider flips depending on how many emails you send.