# Postmark vs Telnyx

| Attribute | Postmark | Telnyx |
|---|---|---|
| **Vioscale score** | 63.1 (49% (low)) | 62.7 (72% (medium)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | A transactional email platform that sends emails through API and SMTP endpoints, with built-in capabilities for tracking delivery success, handling bounces, and processing inbound messages. Designed for developers who need to integrate email delivery into applications. | A platform that orchestrates voice AI agents with built-in speech recognition, synthesis, and language model inference, operating on a unified owned network infrastructure billed transparently at $0.05 per minute for the core voice engine plus metered costs for additional services. |
| features.capabilities | `{"email":true,"two_way":true,"global_coverage":"global","deliverability_tools":true,"usage_pricing_transparent":true}` | `{"sms":true,"email":true,"voice":true,"two_way":true,"whatsapp":true,"global_coverage":"global","usage_pricing_transparent":true}` |
| integrations.count | 22 | 22 |
| integrations.list | `[{"name":"Mailcoach"},{"name":"Datadog"},{"name":"Craft CMS"},{"name":"Customer.io"},{"name":"ActiveCampaign"},{"name":"Supabase"},{"name":"Bubble"},{"name":"Figma"},{"name":"Google Sheets"},{"name":"Gravity Forms"},{"name":"Gravity SMTP for WordPress"},{"name":"Netlify"},{"name":"Slack"},{"name":"Stripe"},{"name":"Stripo"},{"name":"Typeform"},{"name":"WordPress"},{"name":"WP Mail SMTP"},{"name":"Zapier"},{"name":"Tabular"},{"name":"SureTriggers"},{"name":"Marka Email Generator"}]` | `[{"name":"Microsoft Teams"},{"name":"Zoom"},{"name":"Google Meet"},{"name":"Webex"},{"name":"Deepgram"},{"name":"Speechmatics"},{"name":"NVIDIA Parakeet"},{"name":"Telnyx STT"},{"name":"Telnyx Ultra TTS"},{"name":"Qwen3TTS"},{"name":"Inworld"},{"name":"Rime"},{"name":"Resemble"},{"name":"Murf"},{"name":"Fish Audio"},{"name":"Azure Neural HD"},{"name":"Anthropic"},{"name":"OpenAI"},{"name":"Kimi"},{"name":"GLM-5.2"},{"name":"GPT-5.6 Luna"},{"name":"GPT-5.6 Sol"}]` |
| market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":["US","CA"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"$0/mo","features":["100 emails/month","REST API","SMTP","Transactional email","Sandbox Mode","Up to 10 custom domains","45-day retention","Up to 10 users"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"For testing and evaluation","contactSales":false,"includedLimits":{"emails":"100/mo"}},{"free":false,"name":"Basic","summary":"$15/mo + $1.80 per 1,000 overage emails","features":["10,000+ emails/month","Industry-leading deliverability","45-day retention","5 custom domains","Unlimited emails/day","Detailed analytics","Up to 4 users","Up to 15 message streams"],"components":[{"kind":"fixed","amount":15,"period":"month","currency":"USD"},{"per":{"qty":1000,"unit":"emails"},"kind":"metered","amount":1.8,"currency":"USD"}],"description":"For solo developers and smaller teams","contactSales":false,"includedLimits":{"emails":"10,000/mo"}},{"free":false,"name":"Pro","summary":"$16.50/mo + $1.30 per 1,000 overage emails","features":["10,000+ emails/month","Industry-leading deliverability","Customizable retention up to 365 days","10 custom domains","Unlimited emails/day","Inbound email processing","Bulk Email API","Detailed analytics","Up to 6 users","Up to 30 message streams"],"components":[{"kind":"fixed","amount":16.5,"period":"month","currency":"USD"},{"per":{"qty":1000,"unit":"emails"},"kind":"metered","amount":1.3,"currency":"USD"}],"description":"For startups and small businesses","contactSales":false,"includedLimits":{"emails":"10,000/mo"}},{"free":false,"name":"Platform","summary":"$18/mo + $1.20 per 1,000 overage emails","features":["10,000+ emails/month","Industry-leading deliverability","Customizable retention up to 365 days","Unlimited custom domains","Unlimited emails/day","Inbound email processing","Bulk Email API","Detailed analytics","Unlimited users","Unlimited message streams"],"components":[{"kind":"fixed","amount":18,"period":"month","currency":"USD"},{"per":{"qty":1000,"unit":"emails"},"kind":"metered","amount":1.2,"currency":"USD"}],"description":"For agencies and larger teams","contactSales":false,"includedLimits":{"emails":"10,000/mo"}}],"addOns":[{"name":"Dedicated IPs","components":[{"kind":"fixed","amount":50,"period":"month","currency":"USD"}]},{"name":"Custom activity retention","components":[{"kind":"fixed","amount":5,"period":"month","currency":"USD"}]}],"summary":"From $15/mo. Free tier with 100 emails/month. Pay-as-you-go overages starting at $1.80 per 1,000 emails.","currency":"USD","freeTier":true,"sourceUrl":"https://postmarkapp.com","retrievedAt":"2026-08-05T14:11:12.615Z","startingPrice":{"amount":1.2,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"usage","plans":[{"free":true,"name":"Pay As You Go","summary":"$0.05/min voice engine, pay as you use","features":["Full platform access","Voice engine included","LLM tokens at GPU rates","Community support"],"components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.05,"currency":"USD","description":"Voice engine (orchestration, STT, TTS)"}],"description":"Usage-based billing with no commitment. Card on file to start.","contactSales":false,"includedLimits":{"sms_per_second":"50","concurrent_calls":"500","api_requests_per_second":"100"}},{"free":false,"name":"Committed","summary":"$500/month minimum with volume discounts","features":["All pay-as-you-go features","Volume discounts on usage","Dedicated account manager","Priority support","Higher rate limits"],"commitment":"monthly","components":[{"kind":"fixed","amount":500,"period":"month","currency":"USD"}],"description":"Monthly commitment with volume-based discounts across all services.","contactSales":false},{"free":false,"name":"Enterprise","summary":"$5,000/month minimum, custom enterprise pricing","features":["All committed plan features","Dedicated infrastructure","Private IP addressing","Private network interconnect","Unlimited rate limits"],"components":[{"kind":"fixed","amount":5000,"period":"month","currency":"USD"}],"description":"Custom pricing with dedicated infrastructure, private network, and unlimited rate limits.","contactSales":true}],"addOns":[{"name":"LLM tokens","components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.004,"currency":"USD","description":"Example: Kimi model on Telnyx-owned GPUs, roughly $0.004/min"}]},{"name":"Telephony","components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.0032,"currency":"USD","description":"SIP trunking inbound from $0.0032/min"}]},{"name":"Call recording","components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.002,"currency":"USD"}]},{"name":"SMS outbound","components":[{"per":{"qty":1,"unit":"message"},"kind":"metered","amount":0.004,"currency":"USD","description":"Volume pricing available down to $0.0005/msg"}]},{"name":"Phone numbers (US local)","components":[{"kind":"fixed","amount":1,"period":"month","currency":"USD","description":"Volume pricing from $0.79/mo"}]}],"summary":"From $0.05/min. No monthly platform fee. Free tier available; committed or enterprise tiers for volume discounts and dedicated support.","currency":"USD","freeTier":true,"sourceUrl":"https://telnyx.com/pricing/voice-ai-agents","retrievedAt":"2026-08-13T22:21:22.572Z","startingPrice":{"amount":500,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | low | high |
| pricing.transparent | yes | yes |
| reliability.status_page | yes | yes |
| security.disclosure_policy | - | yes |
| security.gdpr | yes | yes |
| security.hipaa | - | yes |
| security.pci | - | yes |
| security.soc2 | - | yes |

## Capabilities (Communication APIs)

| Capability | Postmark | Telnyx |
|---|:--:|:--:|
| **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 2026-09-01T14:32:10.284Z. "-" = undocumented, not absent.*