Plunk vs UniOne

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 — Free	Free Free forever 1,000 emails per month	Flat · 1,000 emails / mo	Standalone · Free
Paid — Pay as you grow Highlighted	$0.001 per email $0.001 per email	Usage · $0.001 per email	Standalone · Usage based

UniOne

See full pricing history

USD · US · source: unione.io

Plan	Pricing	Charged by	Offer type
Standard	USD 6 monthly Starting at $6/month for 50,000 emails	Usage · per channel or location	Standalone · Starting at
Individual	Contact sales Custom pricing	Usage · per channel or location	Standalone · Contact sales

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 — Free

Highlights Emails per month: 1,000 emails

Included
Highlights Credit card required: No

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

Paid — Pay as you grow

Highlights Emails per month: Unlimited emails

Included
Highlights Plunk branding on emails: No

Excluded
Highlights Monthly spend cap: Yes

Included

UniOne

Standard

Plan card 50,000 emails per month: Included
Plan card Transactional email: Included
Plan card Bulk email campaigns: Included
Plan card SMTP API: Included

Individual

Plan card Custom email volume: Included
Plan card Custom support: Included
Plan card Volume pricing: Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

Plunk

August 27, 2026 Source
- Free — Free: Free
- Paid — Pay as you grow: $0.001 per email

UniOne

August 27, 2026 Source
- Standard: USD 6 monthly
- Individual: Contact sales