Plunk vs SendMails

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Plunk

See full pricing history

USD · US · source: www.useplunk.com

Plan	Pricing	Charged by	Offer type
Free forever	Free 1,000 emails / mo	Flat · 1,000 emails / mo	Standalone · Free
Pay as you grow	USD 0 per email $0.001 / email	Usage · email	Standalone · Usage based

SendMails

See full pricing history

USD · US · source: sendmails.io

Plan	Pricing	Charged by	Offer type
Basic	USD 50 monthly $50/month	Flat · per month	Standalone · Fixed
Pro Highlighted	USD 80 monthly $80/month	Flat · per month	Standalone · Fixed
Unlimited	USD 100 monthly $100/month	Flat · per month	Standalone · Fixed

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Plunk

Free forever

Highlights No credit card required: Included
Highlights Transactional emails: Included
Highlights Workflow automation: Included
Highlights Campaign broadcasts: Included
Highlights Custom domains: Included
Highlights Click & open tracking: Included
Highlights Unlimited contacts: Included
Highlights Plunk branding on emails: Included

Pay as you grow

Highlights Everything in Free: Included
Highlights No Plunk branding: Included
Highlights Monthly spend cap: Included
Highlights Unlimited emails: Included

SendMails

Basic

Plan card 50,000 subscribers: Included
Plan card Unlimited email campaigns: Included
Plan card Unlimited workflow automations: Included
Plan card Unlimited lead-capture popups: Included

Pro

Plan card 250,000 subscribers: Included
Plan card Unlimited segmentation: Included
Plan card Email validation integration: Included
Plan card API integrations: Included

Unlimited

Plan card Unlimited subscribers: Included
Plan card Unlimited email campaigns: Included
Plan card Unlimited workflow automations: Included
Plan card Outgoing webhooks: Included

How their prices changed

Each date shows when a public price was observed, not when it took effect. An archived region or currency can differ, so a currency change is not necessarily a price increase.

Plunk

September 21, 2026
Official pricing page
- Free forever: Free
- Pay as you grow: USD 0 per email
August 27, 2026
Official pricing page
- Free — Free: Free
- Paid — Pay as you grow: $0.001 per email

SendMails

August 27, 2026
Official pricing page
- Basic: USD 50 monthly
- Pro: USD 80 monthly
- Unlimited: USD 100 monthly