Staxly

Postman vs Loops

The world's most popular API platform — 30M+ developers
vs. Email marketing for SaaS — loops, transactional, campaigns in one

Postman websiteLoops website

Pricing tiers

Postman

Free
$0. 3 users. 1,000 collection runs/mo. Unlimited collections. 1,000 calls/mo to mock servers. 14-day history.
Free
Basic
$19/user/mo. 10,000 collection runs, 50 integrations, 60-day history, integrations.
$19/mo
Professional
$39/user/mo. 250,000 runs, API mocking, monitoring, version tags, governance lite.
$39/mo
Enterprise
$99/user/mo (Ultimate). Unlimited runs, SSO/SAML, RBAC, IP allowlist, private cloud, audit.
$99/mo
Postman website

Loops

Free
1,000 subscribed contacts. 4,000 sends/month. All features. Loops footer on emails.
Free
Paid — 1.5k
1,500 contacts. Unlimited sends. No footer.
$15/mo
Paid — 5k
5,000 contacts. Unlimited sends.
$49/mo
Paid — 10k
10,000 contacts.
$99/mo
Paid — 25k
25,000 contacts.
$199/mo
Paid — 50k
50,000 contacts.
$349/mo
Custom
>100k contacts — contact sales.
Custom
Loops website

Free-tier quotas head-to-head

Comparing free on Postman vs free on Loops.

MetricPostmanLoops
No overlapping quota metrics for these tiers.

Features

Postman · 17 features

  • API DocumentationPublic + private docs from collections.
  • API VersioningManage multiple API versions.
  • Collection RunnerRun N iterations with data.
  • CollectionsSaved request groups + runners.
  • Desktop AppNative Mac/Win/Linux.
  • EnvironmentsPer-env variables.
  • Flows (low-code)Visual workflow builder.
  • GovernanceAPI design rules enforcement.
  • Mock ServersAuto-generated mocks.
  • MonitorsScheduled collection runs + alerts.
  • Newman CLICI/CD collection runner.
  • Postman AIGenerate tests + docs with AI.
  • Pre-request / Test ScriptsJS scripts + assertions.
  • Public API NetworkDiscoverable APIs marketplace.
  • Request BuilderGUI for any HTTP request.
  • Request HistoryPer-user request log.
  • VS Code ExtensionRequests inside VS Code.

Loops · 12 features

  • API KeysScoped keys for testing vs production.
  • Audiences (Segments)Filter contacts by properties + event behavior.
  • Campaign AnalyticsOpen/click/unsubscribe rates, heatmaps, A/B significance.
  • CampaignsOne-off broadcasts to audience segments. Schedule + A/B test subject.
  • ContactsContact records with custom properties (strings, numbers, booleans, dates).
  • Email EditorVisual block-based + Markdown + HTML modes.
  • EventsSend events to trigger loops/journeys or filter audiences.
  • Loops (Automations)Event-triggered automation flows with delays + conditions.
  • Mailing ListsOpt-in lists with subscribe/unsubscribe preferences per list.
  • Template LibraryPre-built templates for SaaS use cases (onboarding, digest, launch).
  • Transactional APISend transactional emails (receipts, password resets) via /transactional endpoin
  • WebhooksSubscribe to contact/event changes.

Developer interfaces

KindPostmanLoops
CLInewman (CLI)
SDK@loops/loops, loops-py
RESTPostman APILoops REST API
OTHERPostman Desktop, Postman VS Code Extension, Postman Web, Public API NetworkWebhooks
Staxly is an independent catalog of developer platforms. Some links to Postman and Loops may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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