Our take
Pick Loops if saaS teams who will stay on Free $0 (1,000 subscribed contacts, 4,000 marketing+transactional sends / 30 days, Loops footer, 10 emails/sec, no card) while they send a first onboarding mail, then land on Growth at $49/month (starts at 5,000 subscribed contacts on the card we fetched; slider continues) when they need unlimited sends and the branding off. Pick Postmark if app teams who will stay on Free
Best for
Loops Email you start at $0
Postmark Transactional streams you start at $0
Free plan
Loops $0 · up to 1,000 subscribed contacts. 4,000 total marketing + transactional sends per rolling 30 days. 10 emails/second. “Powered by Loops” footer. Unlimited contact *storage*; the send cap is the limiter
Postmark $0 · / month. 100 emails / month. No overages. Never expires. For testing an integration or a side project
Lowest paid
Loops Not published by the vendor
Postmark Basic $15
Next step up
Loops
Postmark Pro $16.50
Runs where
Loops Desktop editor; models hosted
Postmark Hosted
Watch out
Loops Free is 4,000 sends / 30 days to the first 1,000 contacts
Postmark Free caps at 100 emails / month with no overages
Last checked
Loops 2026-10-22 · loops.so/pricing
Postmark 2026-10-23 · postmarkapp.com/pricing
saaS teams who will stay on Free $0 (1,000 subscribed contacts, 4,000 marketing+transactional sends / 30 days, Loops footer, 10 emails/sec, no card) while they send a first onboarding mail, then land on Growth at $49/month (starts at 5,000 subscribed contacts on the card we fetched; slider continues) when they need unlimited sends and the branding off.
Read the Loops pageapp teams who will stay on Free at $0 (100 emails / month, no overages) while they open a first Servers list, then buy Basic at $15 / month (10,000 emails, extra $1.80 / 1,000) when they leave the 100-email bucket.
Read the Postmark page
