Pricing & Plans
Transparent, developer-first pricing for individuals and teams of all sizes.
Compare features, quotas, and capabilities across Sinkbox plans below. All data and infrastructure is 100% hosted within the European Union (EU). When you sign up, you automatically receive a 14-day free trial of the Pro plan — no credit card required.
| Plan & Features | |||||
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| Limits & Capacity | |||||
| Users | 10 users | 100 users | 100 users | 100 users | Custom |
| Projects | 1 | 5 | 20 | 100 | Custom |
| Monthly inbox items | 50 | 2K | 10K | 100K | Custom |
| Retention | 3 days | 2 weeks | 1 month | 1 year | Custom |
| Storage | 10 MB | 100 MB | 500 MB | 5 GB | Custom |
| Pinned items | — | 5 | 10 | 50 | Custom |
| Monthly forwarding limit | — | — | 200 | 1K | Custom |
| Ingestion & APIs | |||||
| Email: SMTP |
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| Email: Generic API |
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| Email: Drop-in | — |
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| Email: Manual paste / EML |
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| SMS: Generic API | — |
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| SMS: Drop-in | — |
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| HTTP Dump/Webhook | — |
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| Push: Drop-in | — | — |
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| Voice: Drop-in | — | — |
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| Chat: Drop-in | — | — |
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| Features & Automation | |||||
| Downloads (.eml, .txt) | — |
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| Delete oldest (FIFO) | — |
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| Retention per project | — | — |
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| Manual forward | — | — |
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| Auto forwarding rules | — | — | — |
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| Per-user read status | — | — | — |
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| Receiver patterns | — | — | — |
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| Public inbox links | — | — | — |
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| Outbound webhooks | — | — | — |
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| Audit logs | — | — | — | — |
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Fair Usage Policy: All plans are subject to our Fair Usage Policy.
Merchant of Record: Payments and subscription billing are securely processed by our European Merchant of Record, Creem (Armitage Labs OÜ, registry code 16977866, Estonia).
Custom requirements & SLAs: Need higher volume, tailored retention policies, dedicated support, or custom agreements? Reach out to us at hello@sinkbox.dev.