# Haraka vs Loops

**Leader by Vioscale score:** Loops

| Attribute | Haraka | Loops |
|---|---|---|
| **Vioscale score** | 55.8 (31% (low)) | 64.7 (54% (medium)) |
| activity.commits_last_30d | 3 | - |
| adoption.dependent_repos | 22 | - |
| adoption.github_stars | 5,613 | - |
| deployment.options | `{"on_prem":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | A free, open-source SMTP server written in Node.js that efficiently handles thousands of concurrent email connections and allows developers to extend functionality through a modular plugin system written in JavaScript. | A cloud-based email platform for software companies to build and manage marketing, transactional, and lifecycle emails. Integrates with agents and your product stack to automate customer journeys based on user behavior and events. |
| features.capabilities | `{"smtp_relay":true,"deployment_model":"self_host","inbound_email_parsing":true}` | `{"iso_27001":false,"smtp_relay":true,"soc2_type_ii":false,"pricing_model":"usage_based","hipaa_compliant":false,"deployment_model":"saas","rest_api_sending":true,"open_click_tracking":true,"inbound_email_parsing":false,"dedicated_ip_available":true,"webhook_event_streaming":true,"bounce_complaint_handling":true,"marketing_template_builder":true}` |
| integrations.count | - | 5 |
| integrations.list | - | `[{"name":"Supabase"},{"name":"Zapier"},{"name":"Stripe"},{"name":"Claude"},{"name":"Polar"}]` |
| language.primary | JavaScript | - |
| license.spdx | MIT | - |
| market.availability | - | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://haraka.github.io","retrievedAt":"2026-08-21T12:43:50.604Z"}` | `{"type":"usage","plans":[{"free":true,"name":"Free","summary":"Free, no credit card required","features":["Up to 4,000 sends/month","Up to 10 emails per second","All features included","Includes Loops footer branding"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"For early products and smaller audiences","contactSales":false,"includedLimits":{"sends":"4,000/month","rate_limit":"10 emails/second","subscribed_contacts":"1,000"}}],"summary":"Free to start. Paid plans based on subscribed contacts; no additional charge for sends or team seats.","currency":"USD","freeTier":true,"sourceUrl":"https://loops.so/pricing","retrievedAt":"2026-08-25T12:17:06.121Z","billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | free | low |
| pricing.transparent | yes | yes |
| release.cadence_days | 40 | - |
| release.history | `[{"url":"https://github.com/haraka/Haraka/releases/tag/v3.3.3","date":"2026-08-04T20:10:53Z","type":"stable","version":"v3.3.3"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.3.2","date":"2026-07-21T04:50:50Z","type":"stable","version":"v3.3.2"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.3.1","date":"2026-06-12T22:48:11Z","type":"stable","version":"v3.3.1"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.2.1","date":"2026-05-25T14:51:46Z","type":"stable","version":"v3.2.1"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.2.0","date":"2026-05-24T20:49:44Z","type":"stable","version":"v3.2.0"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.7","date":"2026-05-20T05:28:41Z","type":"stable","version":"v3.1.7"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.6","date":"2026-05-15T16:35:46Z","type":"stable","version":"v3.1.6"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.5","date":"2026-04-02T16:13:38Z","type":"stable","version":"v3.1.5"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.4","date":"2026-03-30T20:33:23Z","type":"stable","version":"v3.1.4"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.3","date":"2026-02-20T23:06:24Z","type":"stable","version":"v3.1.3"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.2","date":"2026-01-10T00:47:23Z","type":"stable","version":"v3.1.2"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.1","date":"2025-05-19T20:16:54Z","type":"stable","version":"v3.1.1"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.0","date":"2025-03-28T03:29:34Z","type":"stable","version":"v3.1.0"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.0.5","date":"2024-10-01T21:02:42Z","type":"stable","version":"v3.0.5"},{"url":"https://github.com/haraka/Haraka/releases/tag/3.0.4","date":"2024-08-22T00:12:38Z","type":"stable","version":"3.0.4"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.0.3","date":"2024-02-08T06:53:10Z","type":"stable","version":"v3.0.3"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.0.2","date":"2023-06-16T21:10:53Z","type":"stable","version":"v3.0.2"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.0.1","date":"2023-01-19T22:59:23Z","type":"stable","version":"v3.0.1"},{"url":"https://github.com/haraka/Haraka/releases/tag/3.0.0","date":"2023-01-06T18:09:52Z","type":"stable","version":"3.0.0"},{"url":"https://github.com/haraka/Haraka/releases/tag/2.8.28","date":"2021-10-15T06:14:52Z","type":"stable","version":"2.8.28"}]` | - |
| security.gdpr | - | yes |
| security.scorecard | 6.8 | - |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=Haraka&per_page=100","last_12m":1,"max_severity":"CRITICAL"}` | - |

## Capabilities (Email Delivery Infrastructure)

| Capability | Haraka | Loops |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Deployment model | Self host | Saas |
| Rest API sending | - | ✓ |
| Smtp relay | ✓ | ✓ |
| Inbound email parsing | ✓ | ✗ |
| Dedicated ip available | - | ✓ |
| Bounce complaint handling | - | ✓ |
| Open click tracking | - | ✓ |
| Marketing template builder | - | ✓ |
| Webhook event streaming | - | ✓ |
| HIPAA compliant | - | ✗ |
| SOC2 type ii | - | ✗ |
| ISO 27001 | - | ✗ |
| Pricing model | - | Usage based |

*Source: Vioscale. Generated 2026-09-01T16:42:01.626Z. "-" = undocumented, not absent.*