Comparison

Infobip vs Postmark

On the evidence we track, Infobip leads this comparison with a composite score of 81/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Infobip full profile →Postmark full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

★Infobip81

Postmark63

Attribute comparison across 2 tools
Attribute	InfobipLeader	Postmark
Vioscale score	81 / 100low · 48%	63 / 100low · 49%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	freemium
Price levelpricing.price_level	high	low
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	30	22
Security
Disclosure policysecurity.disclosure_policy	✓	-
Gdprsecurity.gdpr	✓	✓
Reliability
Sla pctreliability.sla_pct	99.9	-
Status pagereliability.status_page	✓	✓
Market
Availabilitymarket.availability	Available worldwide · Popular in US, CA, GB · HQ GB	Available worldwide · HQ US

Score

Vioscale score

Infobip81 / 100low · 48%

Postmark63 / 100low · 49%

Pricing

Free tier

Infobip✓

Postmark✓

Model

Infobipfreemium

Postmarkfreemium

Price level

Infobiphigh

Postmarklow

Transparent

Infobip✓

Postmark✓

Integrations

Count

Infobip30

Postmark22

Security

Disclosure policy

Infobip✓

Postmark–

Gdpr

Infobip✓

Postmark✓

Reliability

Sla pct

Infobip99.9

Postmark–

Status page

Infobip✓

Postmark✓

Market

Availability

InfobipAvailable worldwide · Popular in US, CA, GB · HQ GB

PostmarkAvailable worldwide · HQ US

Capabilities

Feature-by-feature on the axes that matter for communication apis. “-” means undocumented, not absent.

Capability comparison for Communication APIs
Capability	Infobip	Postmark
Channels
SMS	✓	-
Voice	✓	-
WhatsApp	✓	-
RCS	✓	-
Transactional email	✓	✓
Video / real-time	✓	-
In-app chat	✓	-
Verify / OTP / 2FA	✓	-
Messaging
Two-way messaging	✓	✓
Reach
Geographic coverage	Global	Global
Delivery
Email deliverability tools	✓	✓
Commercial
Published per-unit pricing	✓	✓

Channels

SMS

Infobip✓

Postmark-

Voice

Infobip✓

Postmark-

Infobip✓

Postmark-

RCS

Infobip✓

Postmark-

Transactional email

Infobip✓

Postmark✓

Video / real-time

Infobip✓

Postmark-

In-app chat

Infobip✓

Postmark-

Verify / OTP / 2FA

Infobip✓

Postmark-

Messaging

Two-way messaging

Infobip✓

Postmark✓

Reach

Geographic coverage

InfobipGlobal

PostmarkGlobal

Delivery

Email deliverability tools

Infobip✓

Postmark✓

Commercial

Published per-unit pricing

Infobip✓

Postmark✓

What each one is

The product in its own terms, so the numbers below have context.

Infobip

Leader

Infobip is an omnichannel cloud communications platform enabling businesses to send messages via SMS, email, voice, WhatsApp, Viber, and other digital channels. It offers global message delivery with high reliability, advanced routing, and tools for building automated customer conversations.

Independently observed

Postmark

A transactional email platform that sends emails through API and SMTP endpoints, with built-in capabilities for tracking delivery success, handling bounces, and processing inbound messages. Designed for developers who need to integrate email delivery into applications.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Infobip

Leader

from €115/moUsage-basedFree tier

Usage-based pricing with per-message SMS/WhatsApp, flat-rate email, and per-minute voice. Viber has €115-€175 monthly minimum. Prices vary by destination country.

SMS-
- Flexible pricing by destination country
- 98% open rate
- Global delivery
- Fraud protection
Email-
- 99.4% deliverability rate
- 120k emails per minute processing
- 2 second average delivery
WhatsApp-
- Utility messages
- Authentication/OTP
- Marketing messages
- Free-form customer responses
Viber€115/mo
- Promotional, transactional, OTP, and conversational messages
- Minimum commitment €115 (standard) or €175 (select countries)
Voice-
- Inbound call handling
- IVR automation
- 95% global coverage
- 70+ direct operator connections

as of 2026-08-14verify ↗

Postmark

from $1.20/moSubscriptionFree tier

From $15/mo. Free tier with 100 emails/month. Pay-as-you-go overages starting at $1.80 per 1,000 emails.

FreeFree
- 100 emails/month
- REST API
- SMTP
- Transactional email
- Sandbox Mode
- +3 more
Basic$15/mo + $1.80 per 1,000 overage emails
- 10,000+ emails/month
- Industry-leading deliverability
- 45-day retention
- 5 custom domains
- Unlimited emails/day
- +3 more
Pro$16.50/mo + $1.30 per 1,000 overage emails
- 10,000+ emails/month
- Industry-leading deliverability
- Customizable retention up to 365 days
- 10 custom domains
- Unlimited emails/day
- +5 more
Platform$18/mo + $1.20 per 1,000 overage emails
- 10,000+ emails/month
- Industry-leading deliverability
- Customizable retention up to 365 days
- Unlimited custom domains
- Unlimited emails/day
- +5 more

as of 2026-08-05verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Infobip	Postmark
WebPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓

Platforms

Web

Infobip✓

Postmark✓

Deployment

Cloud / SaaS

Infobip✓

Postmark✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Infobip

Leader

13 total

SMS
Email
Voice
MMS
WhatsApp
RCS
Messenger
Viber
Instagram
Google Business Messages
Apple Messages for Business
LINE
Zalo

Independently observed

Postmark

22 total

Mailcoach
Datadog
Craft CMS
Customer.io
ActiveCampaign
Supabase
Bubble
Figma
Google Sheets
Gravity Forms
Gravity SMTP for WordPress
Netlify
Slack
Stripe
Stripo
Typeform
WordPress
WP Mail SMTP
Zapier
Tabular
SureTriggers
Marka Email Generator

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.