vioscale
Comparison

Bandwidth vs Postmark

No clear leader: Postmark (63.1) and Bandwidth (60.3) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Bandwidth full profile →Postmark full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Bandwidth60
Postmark63
Score
Vioscale score
Bandwidth60 / 100medium · 73%updating
Postmark63 / 100low · 49%updating
Pricing
Free tier
Bandwidth✗
Postmark✓
Model
Bandwidthcommercial
Postmarkfreemium
Price level
Bandwidthlow
Postmarklow
Transparent
Bandwidth✓
Postmark✓
Integrations
Count
Bandwidth7
Postmark22
Security
Gdpr
Bandwidth✓
Postmark✓
Hipaa
Bandwidth✓
Postmark–
Iso27001
Bandwidth✓
Postmark–
Soc2
Bandwidth✓
Postmark–
Reliability
Status page
Bandwidth✓
Postmark✓
Market
Availability

Capabilities

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

Channels
SMS
Bandwidth-
Postmark-
Voice
Bandwidth✓
Postmark-
WhatsApp
Bandwidth-
Postmark-
RCS
Bandwidth-
Postmark-
Transactional email
Bandwidth-
Postmark✓
Video / real-time
Bandwidth-
Postmark-
In-app chat
Bandwidth-
Postmark-
Verify / OTP / 2FA
Bandwidth✓
Postmark-
Messaging
Two-way messaging
Bandwidth-
Postmark✓
Reach
Geographic coverage
BandwidthGlobal
PostmarkGlobal
Delivery
Email deliverability tools
Bandwidth-
Postmark✓
Commercial
Published per-unit pricing
Bandwidth-
Postmark✓

What each one is

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

Bandwidth

A cloud communications company providing voice services and phone number management, with integrations for conversational AI and contact center platforms.

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.

Bandwidth

from $0.00/moUsage-based

Usage-based pricing from $0.004 per SMS to $0.15 per call verification. Volume-based discounts. Custom enterprise pricing available.

  • SMS Messaging$0.00 per message + $0.01 per message + $0.01 per message
  • MMS Messaging$0.01 per message + $0.02 per message
  • Voice API$0.01 per minute + $0.01 per minute + $0.00 per 100 character + $0.00 per 100 character + $0.00 per minute + $0.00 per minute + $0.01 per call
  • Authentication API$0.05 per authentication + $0.15 per call
  • SIP TrunkingContact sales
as of verify ↗

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 verify ↗

Platform & deployment

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

Platforms
Web
Bandwidth✓
Postmark✓
Deployment
Cloud / SaaS
Bandwidth✓
Postmark✓

Integrations

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

Bandwidth

7 total
  • Call Verification
  • Pindrop
  • Genesys
  • Five9
  • Webex
  • Zoom
  • Conversational AI Integrations
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.