# Mailgun vs Stream

**Leader by Vioscale score:** Stream

| Attribute | Mailgun | Stream |
|---|---|---|
| **Vioscale score** | 59.1 (73% (medium)) | 80.3 (72% (medium)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | A developer-focused platform that handles sending transactional emails reliably, with integrated tools for validating email lists, testing inbox placement, monitoring sender reputation, and tracking email performance. | A platform providing SDKs and APIs for adding chat messaging, video calling, activity feeds, and content moderation to applications, supporting billions of end users across a globally distributed infrastructure. |
| features.capabilities | `{"email":true,"global_coverage":"global","deliverability_tools":true,"usage_pricing_transparent":true}` | `{"chat":true,"video":true,"voice":true,"two_way":true,"global_coverage":"global","usage_pricing_transparent":true}` |
| integrations.count | 2 | 14 |
| integrations.list | `[{"name":"Google Postmaster Tools"},{"name":"Microsoft SNDS"}]` | `[{"name":"Jenkins"},{"name":"GitHub"},{"name":"Slack"},{"name":"Postman"},{"name":"Xcode"},{"name":"Android Studio"},{"name":"React"},{"name":"React Native"},{"name":"Flutter"},{"name":"Swift"},{"name":"SwiftUI"},{"name":"Kotlin"},{"name":"Jetpack Compose"},{"name":"Expo"}]` |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"ios":true,"web":true,"android":true}` |
| pricing | `{"type":"subscription","plans":[{"free":false,"name":"Pilot","summary":"$49/mo (first month free), unlimited users","features":["First month free","Unlimited users","2,500 email address validations","25 inbox placement tests","Detailed documentation","Ticket support"],"commitment":"monthly","components":[{"kind":"fixed","amount":49,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"inbox placement test"},"kind":"metered","amount":0.75,"currency":"USD"},{"per":{"qty":100,"unit":"validations"},"kind":"metered","amount":1.2,"currency":"USD"}],"description":"Email validation and basic inbox placement testing","contactSales":false,"includedLimits":{"email_validations":"2,500","inbox_placement_tests":"25"}},{"free":false,"name":"Starter","summary":"$99/mo (first month free), unlimited users","features":["First month free","Unlimited users","5,000 email address validations","50 inbox placement tests","Spam trap monitoring (1 domain)","Blocklist monitoring (1 IP, 1 domain)","Google Postmaster Tools integration","Microsoft SNDS integration","Email health score","Detailed documentation","Ticket support"],"commitment":"monthly","components":[{"kind":"fixed","amount":99,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"inbox placement test"},"kind":"metered","amount":0.75,"currency":"USD"},{"per":{"qty":100,"unit":"validations"},"kind":"metered","amount":0.8,"currency":"USD"}],"description":"Email validation and monitoring with domain and IP reputation tracking","contactSales":false,"includedLimits":{"email_validations":"5,000","blocklist_monitoring":"1 IP, 1 domain","spam_trap_monitoring":"1 domain","inbox_placement_tests":"50"}},{"free":false,"name":"Contract","summary":"Custom pricing, contact sales for quote","features":["Unlimited users","Custom domain and IP monitoring","Custom email validations","Custom inbox placement tests","Designated Technical Account Manager"],"description":"Custom enterprise deliverability solution with dedicated support","contactSales":true}],"summary":"From $49/mo. First month free.","currency":"USD","freeTier":false,"sourceUrl":"https://www.mailgun.com/pricing/optimize/","retrievedAt":"2026-08-14T13:46:31.367Z","freeTrialDays":30,"startingPrice":{"amount":0.75,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"125k API calls, 5k activities/month","features":["Flat & Timeline Feeds","Notification & Aggregated Feeds","Security & Compliance","Global Edge Network"],"contactSales":false,"includedLimits":{"monthly_api_calls":"125,000","monthly_activities":"5,000"}},{"free":false,"name":"Start","summary":"$499/month billed annually, or $599/month","features":["All Feeds API features","Ranked Feeds","Ticketed Support","Security & Compliance","Global Edge Network"],"commitment":"annual","components":[{"kind":"fixed","amount":499,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"monthly_api_calls":"1,250,000","monthly_activities":"50,000"}},{"free":false,"name":"Elevate","summary":"$899/month billed annually, or $999/month","features":["All Feeds API features","Ranked Feeds","Ticketed Support","Security & Compliance","Global Edge Network"],"commitment":"annual","components":[{"kind":"fixed","amount":899,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"monthly_api_calls":"3,750,000","monthly_activities":"150,000"}},{"free":false,"name":"Enterprise","summary":"Custom pricing, scales to 100M+ users","features":["Activity-based pricing","99.999% SLA","SAML/SSO","Private Dedicated Servers","24/7 Support"],"commitment":"annual","contactSales":true}],"addOns":[{"name":"Image & File CDN Bandwidth","components":[{"per":{"qty":1,"unit":"GB"},"kind":"metered","amount":0.17,"currency":"USD"}]},{"name":"Image & File Storage","components":[{"per":{"qty":1,"unit":"GB"},"kind":"metered","amount":0.07,"currency":"USD"}]},{"name":"Image Resizing","components":[{"per":{"qty":1000,"unit":"images"},"kind":"metered","amount":5.8,"currency":"USD"}]}],"summary":"Free tier plus $499–$899/month plans with activity and API call overages. Free Maker program for companies under 5 team members and $10k MRR.","currency":"USD","freeTier":true,"sourceUrl":"https://getstream.io/activity-feeds/pricing/","retrievedAt":"2026-08-14T10:25:51.982Z","startingPrice":{"amount":499,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | no | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | low | high |
| pricing.transparent | yes | yes |
| reliability.sla_pct | - | 99.999 |
| reliability.status_page | yes | yes |
| security.disclosure_policy | yes | yes |
| security.gdpr | yes | yes |
| security.hipaa | - | yes |
| security.iso27001 | yes | yes |
| security.soc2 | yes | yes |

## Capabilities (Communication APIs)

| Capability | Mailgun | Stream |
|---|:--:|:--:|
| **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 | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T15:13:10.588Z. "-" = undocumented, not absent.*