Loops vs Postmark: pricing, quotas & features (2026)
Email marketing for SaaS — loops, transactional, campaigns in one
vs. Reliable transactional email with fast delivery
Data sourced from vendor documentation · Last updated June 2026
Summary
Loops and Postmark are both email platforms, addressing the same core use case with different implementation philosophies and trade-offs. Both offer a free tier, making it easy to prototype without a credit card. Both platforms start their paid tiers at $15/month. Both have 12 documented features in Staxly's catalog. The right choice depends on your existing stack, team experience, and feature requirements. All pricing and quota data below is sourced from Loops and Postmark's official documentation — not generated by AI or estimated.
Loops vs Postmark: Comparativa de precios, cuotas y características (2026)
En esta comparativa analizamos Loops y Postmark lado a lado — incluyendo precios mensuales, límites del tier gratuito, características técnicas, cuotas de uso (almacenamiento, transferencia, usuarios activos mensuales) y los interfaces de desarrollo disponibles. Todos los datos proceden de la documentación oficial de cada proveedor, no de respuestas generadas por IA.
Loops es una plataforma de la categoría email — Email marketing for SaaS — loops, transactional, campaigns in one. Ofrece 7 tiers de precio: Free gratuito, Paid — 1.5k desde $15/mes, Paid — 5k desde $49/mes, Paid — 10k desde $99/mes. Su catálogo en Staxly documenta 12 características y 4 interfazes para desarrolladores.
Postmark pertenece a la categoría email — Reliable transactional email with fast delivery. Ofrece 5 tiers de precio: Free gratuito, Basic — 10k desde $15/mes, Pro — 10k desde $17/mes, Platform — 10k desde $18/mes. Su catálogo documenta 12 características y 10 interfazes para desarrolladores.
A continuación encontrarás los tiers de precio completos de ambas plataformas, una matriz de cuotas del tier gratuito (transferencia, almacenamiento, MAU, llamadas a la API y otros límites), el listado completo de características y los interfaces (CLI, SDKs, REST, GraphQL, MCP) disponibles para integrar cada servicio.
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Pricing tiers
Loops
Postmark
Free-tier quotas head-to-head
Comparing free on Loops vs free on Postmark.
| Metric | Loops | Postmark |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Loops · 12 features
- API Keys — Scoped keys for testing vs production.
- Audiences (Segments) — Filter contacts by properties + event behavior.
- Campaign Analytics — Open/click/unsubscribe rates, heatmaps, A/B significance.
- Campaigns — One-off broadcasts to audience segments. Schedule + A/B test subject.
- Contacts — Contact records with custom properties (strings, numbers, booleans, dates).
- Email Editor — Visual block-based + Markdown + HTML modes.
- Events — Send events to trigger loops/journeys or filter audiences.
- Loops (Automations) — Event-triggered automation flows with delays + conditions.
- Mailing Lists — Opt-in lists with subscribe/unsubscribe preferences per list.
- Template Library — Pre-built templates for SaaS use cases (onboarding, digest, launch).
- Transactional API — Send transactional emails (receipts, password resets) via /transactional endpoin…
- Webhooks — Subscribe to contact/event changes.
Postmark · 12 features
- Activity Search — Full-text search over sent messages for 45-365 days.
- Bounce Handling — Automatic hard/soft bounce detection + suppression management.
- Broadcast Messages — Via separate Broadcast Message Stream. Bulk sends with throttling.
- DKIM + SPF — One-click verification + auto-renewal of DKIM keys.
- Inbound Email — Route inbound emails to your webhook. Parse attachments, threads.
- Message Streams — Isolate transactional from marketing for separate deliverability reputation.
- Open + Click Tracking — Configurable at template or send level.
- Raw API Access — 100+ endpoints for bounces, servers, tags, templates, stats.
- Servers — Multi-tenant isolation: each "server" has its own API token + reputation.
- Templates — Mustachio template language with variables, alias + versioning.
- Transactional Send — Reliable API for password resets, receipts, notifications. Sub-10s delivery.
- Webhook Events — Delivery, bounce, spam complaint, open, click, subscription change.
Developer interfaces
| Kind | Loops | Postmark |
|---|---|---|
| SDK | @loops/loops, loops-py | postmark (Node), postmark-dotnet, postmark-go, postmark-php, postmark-rails, postmarker (Python) |
| REST | Loops REST API | Postmark REST API |
| OTHER | Webhooks | Inbound Email, SMTP Relay, Webhooks |
Key takeaways
- Both Loops and Postmark offer a free tier — Loops ("Free") and Postmark ("Free") — with no credit card required to start.
- The entry-level paid plan is $15/month for Loops (Paid — 1.5k) vs. $15/month for Postmark (Basic — 10k).
- Both platforms have 12 documented features in Staxly's catalog.
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