vioscale
Comparison

MailHog vs Testmail.app

On the evidence we track, Testmail.app leads this comparison with a composite score of 82/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

MailHog full profile →Testmail.app full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
MailHog43
★Testmail.app82
Score
Vioscale score
MailHog43 / 100low · 19%
Testmail.app82 / 100low · 42%
Pricing
Free tier
MailHog–
Testmail.app✓
Model
MailHogcommercial
Testmail.appfreemium
Price level
MailHog–
Testmail.applow
Starting price
MailHog–
Testmail.app$12
Transparent
MailHog–
Testmail.app✓
Integrations
Count
MailHog–
Testmail.app3
Security
Gdpr
MailHog–
Testmail.app✓
Scorecard
MailHog2.6
Testmail.app–
Vulnerabilities
Reliability
Sla pct
MailHog–
Testmail.app99.99
Status page
MailHog–
Testmail.app✓
Adoption
Dependent repos
MailHog11
Testmail.app–
Github stars
MailHog16,138
Testmail.app–
Activity
Commits last 30d
MailHog0
Testmail.app–
Release
Cadence days
MailHog11
Testmail.app–
History
MailHog20 items
Testmail.app–
License
Spdx
MailHogMIT
Testmail.app–
Language
Primary
MailHogGo
Testmail.app–
Market
Availability

Capabilities

Feature-by-feature on the axes that matter for email testing dev. “-” means undocumented, not absent.

Capabilities
API assertions
MailHog✓
Testmail.app-
Rendering preview
MailHog✓
Testmail.app-
Spam score check
MailHog✗
Testmail.app-
Blocklist deliverability check
MailHog✗
Testmail.app-
SMS testing
MailHog✗
Testmail.app-
Production sending addon
MailHog✓
Testmail.app-
Ci cd integration
MailHog✗
Testmail.app-
Multi user inboxes
MailHog✓
Testmail.app-
Open source
MailHog✓
Testmail.app-

What each one is

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

MailHog

MailHog intercepts and stores SMTP messages during development, providing a web UI and JSON API for viewing and managing test emails, with the option to forward messages to real mail servers.

Independently observed

Testmail.app

Leader

Provides temporary, addressable mailboxes and APIs enabling developers to capture and verify emails in automated test workflows and CI/CD pipelines without contacting real users.

Independently observed

Pricing

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

MailHog

Pricing not documented yet.

Testmail.app

Leader
from $12/moSubscriptionFree tier14-day trial

From free to $299/month. Free tier with 100 emails/month. 14-day trial.

  • FreeFree
    • 100 emails/month
    • Unlimited users, email addresses, and mailboxes
  • Essential$12/month or $9/month billed annually
    • 10,000 emails/month
    • Full API access
  • Pro$39/month or $29/month billed annually
    • 50,000 emails/month
    • Unlimited custom namespaces
    • Visual email viewer
    • Priority support
  • Enterprise$129/month or $89/month billed annually
    • 1,000,000 emails/month
    • SSO with SAML 2.0 or OIDC
    • SCIM support
    • Enterprise invoicing
    • 99.99% uptime SLA
  • Unlimited$299/month or $269/month billed annually
    • 10,000,000 emails/month
    • All Enterprise features
    • Unlimited custom domains
    • Custom contracts with enterprise compliance support
as of verify ↗

Platform & deployment

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

Platforms
Web
MailHog✓
Testmail.app✓
macOS
MailHog✓
Testmail.app✗
Linux
MailHog✓
Testmail.app✗
Deployment
Cloud / SaaS
MailHog✓
Testmail.app✓
Self-hosted
MailHog✓
Testmail.app✗

Integrations

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

MailHog

Not documented yet.

Testmail.app

Leader
3 total
  • Microsoft Entra ID
  • Okta
  • OneLogin
Independently observed

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