Postmark vs Vibes
Postmark
postmarkapp.com
Vibes
vibes.comSide by side
| Figure | Postmark | Vibes |
|---|---|---|
| Price from | $5/mo | $149/mo |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 8 | 4 |
| Spec score · Proactive Notification Software | 8.6 (#5) | 7.0 (#16) |
| Company history | Postmark says it has delivered billions of emails since 2010. | Vibes says its co-founders built the company in Chicago and that it has more than 25 years of mobile messaging experience. |
| Integrations | Official integrations include Slack, Zapier, Stripe, WordPress, Supabase, Bubble, Craft CMS, Netlify, and Gravity Forms. | Named integrations include Salesforce Marketing Cloud, Adobe Marketo Engage, Adobe Journey Optimizer, Oracle CrowdTwist, Shopify and Zapier. |
| Support | Postmark offers support by email, live chat, and one-on-one calls and reports a 95% customer happiness rating. | Professional and Enterprise plans include a dedicated Customer Success manager and 24/7 issue resolution support. |
Plans
Postmark
- FreeFree
- Basic$15 a month
- Pro$16.50 a month
- Platform$18 a month
- Custom activity retention$5 a month
- DMARC monitoring$14 a month
- Dedicated IP$50 a month
- High-volume plansPriced on request
Vibes
- RCS Studio$149 a month
- Platform ProfessionalPriced on request
- Platform EnterprisePriced on request
- Tier 1 SMS/MMS/RCS AggregationPriced on request
In their own words
Postmark
Postmark delivers and tracks application email as an alternative to SMTP or Sendmail. It separates transactional and broadcast messages into different Message Streams and IP infrastructure. Developers can send through REST API, SMTP, or multi-region SMTP routing, with official libraries for Node.js, Python, Rails, Ruby, PHP, and.NET. Inbound messages can be converted to JSON and sent to a webhook URL. Tracking includes delivery, bounces, spam, opens, and links, with event webhooks. Editable responsive templates cover transactional messages such as password resets, receipts, and invitations. The free Developer plan costs nothing, provides 100 emails per month, permits no overages, and does not expire. Basic starts at $15 a month for 10,000 emails per month; extra emails cost $1.80 per 1,000 and are calculated at the end of the billing cycle. Unused emails do not roll over. Postmark lists API and web access. Its iOS app was sunset in June 2025 and is no longer supported.