# Litmus vs Mailosaur

**Leader by Vioscale score:** Mailosaur

| Attribute | Litmus | Mailosaur |
|---|---|---|
| **Vioscale score** | 40.4 (12% (low)) | 60.5 (55% (medium)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | - | Provides tools for validating emails and SMS messages through dedicated inboxes and phone numbers, with rendering previews across devices and email clients, integration into CI/CD pipelines, and automation via APIs and testing framework support. |
| features.capabilities | - | `{"sms_testing":true,"api_assertions":true,"spam_score_check":true,"ci_cd_integration":true,"rendering_preview":true,"multi_user_inboxes":true}` |
| integrations.count | 12 | 20 |
| integrations.list | `[{"name":"Salesforce Marketing Cloud"},{"name":"Adobe Marketo"},{"name":"Oracle Responsys"},{"name":"Oracle Eloqua"},{"name":"HubSpot"},{"name":"Acoustic Campaign"},{"name":"Mailchimp"},{"name":"Campaign Monitor"},{"name":"Trello"},{"name":"Slack"},{"name":"Dropbox"},{"name":"Dreamweaver"}]` | `[{"name":"Selenium"},{"name":"Playwright"},{"name":"Cypress"},{"name":"TestCafe"},{"name":"WebdriverIO"},{"name":"Cucumber"},{"name":"Robot Framework"},{"name":"Ghost Inspector"},{"name":"Postman"},{"name":"Insomnia"},{"name":"PowerShell"},{"name":"Node.js"},{"name":"Java"},{"name":"Python"},{"name":"Ruby"},{"name":".NET"},{"name":"PHP"},{"name":"Go"},{"name":"JavaScript"},{"name":"Okta"},{"name":"Microsoft Entra"}]` |
| market.availability | `{"primaryMarkets":["US","GB"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"GB","primaryMarkets":["GB","US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | - | `{"type":"subscription","plans":[{"free":false,"name":"Personal","summary":"$20/month (billed annually)","features":["Email compatibility testing","API for test automation","Forward emails to external addresses"],"minSeats":1,"components":[{"kind":"fixed","amount":20,"period":"month","currency":"USD"}],"description":"For individuals requiring email testing essentials","contactSales":false,"includedLimits":{"users":"1 (support for up to 3)","inboxes":"1","emails_per_month":"15,000"}},{"free":false,"name":"Core","summary":"$50/month (popular)","features":["Team access","Multiple inboxes","Email accessibility testing","Mail rules","POP3/IMAP connectivity","SMS support"],"minSeats":5,"components":[{"kind":"fixed","amount":50,"period":"month","currency":"USD"}],"description":"Collaborative testing scaled for teams","contactSales":false,"includedLimits":{"users":"5 seats","emails_per_month":"75,000"}},{"free":false,"name":"Enterprise","features":["Custom users and inboxes","SSO (SAML2/OIDC)","Separate permissions","Enterprise security","Account manager","Advanced support with SLAs"],"contactSales":true}],"addOns":[{"name":"SMS and authentication","components":[{"kind":"fixed","amount":37.5,"period":"month","currency":"USD"}]},{"name":"Email previews","components":[{"kind":"fixed","amount":25,"period":"month","currency":"USD"}]}],"summary":"From $20/month (billed annually). Free 14-day trial.","currency":"USD","freeTier":false,"sourceUrl":"https://mailosaur.com/pricing","retrievedAt":"2026-08-25T12:08:17.001Z","freeTrialDays":14,"startingPrice":{"amount":20,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | - | no |
| pricing.model | - | commercial |
| pricing.price_level | - | mid |
| pricing.starting_price | - | `{"amount":20,"currency":"USD"}` |
| pricing.transparent | - | yes |
| security.disclosure_policy | - | yes |
| security.gdpr | yes | yes |
| security.iso27001 | - | yes |
| security.pci | - | yes |
| security.soc2 | yes | - |

## Capabilities (Email Testing Dev)

| Capability | Litmus | Mailosaur |
|---|:--:|:--:|
| **Capabilities** |  |  |
| API assertions | - | ✓ |
| Rendering preview | - | ✓ |
| Spam score check | - | ✓ |
| Blocklist deliverability check | - | - |
| SMS testing | - | ✓ |
| Production sending addon | - | - |
| Ci cd integration | - | ✓ |
| Multi user inboxes | - | ✓ |
| Open source | - | - |

*Source: Vioscale. Generated 2026-09-01T17:07:29.423Z. "-" = undocumented, not absent.*