| Best when | Engineering, product and growth all send messages to users, across channels and customer accounts | A marketing team runs push, in-app experiences and campaigns for a consumer app |
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| Who uses it | Engineers, product, growth, and agents over MCP; unlimited seats | Marketers and CX teams in the dashboard; engineers on the SDKs and API |
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| Messages covered | Transactional, product and customer engagement, in one system | Campaigns, journeys and in-app experiences; transactional email and SMS inside their packages |
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| Built and changed from | Dashboard agent, your own agent over MCP, CLI and API | Dashboard with AI agents; REST API for sends and Automations |
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| Channels | Email, SMS, WhatsApp, mobile push, web push, Slack, Teams, in-app, webhook, every plan | Push, web push, in-app, Message Center, Live Activities; email, SMS and wallet as purchased packages |
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| Data model | Users, lists, objects, tenants and sub-tenants | Channels tied to named users, with tags and typed attributes |
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| Multi-tenancy | Nested tenants with own provider, domain, template version and defaults | Projects under a company account; no tenant object |
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| Preferences | Per category: channels, digest schedule, conditions; tenant defaults | Opt-in per subscription list, in a hosted or embedded centre |
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| Journeys and workflows | One send step for all channels; batch, digest, branch, failover, versions | Journeys of Sequences, Scenes and In-App Automations; A/B tests and holdouts |
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| In-app | Inbox and toasts on web and mobile, headless option | Message Center, In-App Automation, Scenes with surveys and stories |
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| Provider failover | Ordered providers with timer and delivery confirmation | No second provider; falls back to another opted-in channel |
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| Log retention | 30 days Free, 90 days paid, rendered content kept | Unicast content not stored; multicast and analytics 13 months |
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| AI | Agent builds, writes copy and debugs in dashboard or Slack; MCP; Agent SDK | Scene, Experimentation and Recommendation agents and AI-built Journeys, in the dashboard |
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| Hosting | SuprSend cloud on every plan; your VPC, on-prem or BYOC on Enterprise, full product, supported | Airship cloud; US and EU data centres |
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| Pricing model | Per notification per channel; a digest counts as one; 10,000 free | Monthly active users, contacts and impressions, by quote |
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| Implementation | Free plan, no sales call; first workflow the same day | Essentials self-service; Enterprise by quote with services |
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| Compliance | SOC 2 Type II, GDPR, HIPAA BAA on Enterprise | SOC 2 Type II, report under NDA |
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| G2 | 4.8, 129 reviews | 4.0, 83 reviews |
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