PostHog vs Insomnia
Open source product analytics — all-in-one dev tool
vs. Open-source API client + design platform — the developer-first Postman alternative
Pricing tiers
PostHog
Free (generous)
No credit card. Each product has its own free monthly quota. Great for startups + OSS.
Free
Paid (usage-based)
Pay only what you use, after free quotas. Volume discounts at higher tiers. 6 projects, 7-year retention.
$0 base (usage-based)
Self-Hosted (OSS)
MIT-licensed. Run on your own infra via Docker/k8s. Zero vendor lock-in.
$0 base (usage-based)
Enterprise
Custom. SAML SSO, dedicated CSM, custom SLA.
Custom
Insomnia
Free
$0. Unlimited local. Cloud sync with E2EE. 1 project. Local + Git storage. Up to 3 members.
Free
Pro
$5/user/mo annual. Unlimited projects, cloud sync + Git sync + Insomnia AI.
$5/mo
Enterprise
$25/user/mo. SSO, SAML, RBAC, audit log, dedicated SLA, VPC.
$25/mo
Free-tier quotas head-to-head
Comparing free on PostHog vs free on Insomnia.
| Metric | PostHog | Insomnia |
|---|---|---|
| data warehouse rows | 1000000 rows/month | — |
| error tracking exceptions | 100000 exceptions/month | — |
| feature flags requests | 1000000 requests/month | — |
| llm analytics events | 100000 events/month | — |
| logs gb | 50 GB/month | — |
| product analytics events | 1000000 events/month | — |
| projects | 1 projects | — |
| retention years | 1 year | — |
| session replay recordings | 5000 recordings/month | — |
| surveys responses | 1500 responses/month | — |
| team members | unlimited members | — |
Features
PostHog · 14 features
- A/B Testing — Experiments with significance analysis.
- Data Pipelines — Export events to BigQuery, Snowflake, S3.
- Data Warehouse — Query external sources (Stripe, Hubspot, S3) alongside events with SQL.
- Error Tracking — Sentry-style error tracking in same platform.
- Feature Flags — Rollout flags with targeting, A/B testing, JSON payloads.
- LLM Analytics — Tracing + cost tracking for OpenAI, Anthropic, Gemini, etc.
- Logs — Centralized log ingest with free 50 GB/month.
- Product Analytics — Events, funnels, trends, retention, paths. SQL insights available.
- Revenue Tracking — Integration with Stripe for revenue + churn metrics.
- Self-Hosting — Docker/Helm. Full feature parity with cloud.
- Session Replay — Watch user sessions. Privacy controls, masked inputs, JS errors.
- SQL Query API — Run ClickHouse SQL over your events via API.
- Surveys — In-app surveys + feedback widgets.
- Workflows — Trigger emails/webhooks on events.
Insomnia · 19 features
- API Design (OpenAPI) — Spec editor + preview.
- Auth Helpers — OAuth, AWS, Hawk, Bearer, etc.
- Cloud Sync (E2EE) — Opt-in encrypted sync.
- Environments — Variables per env.
- Git Sync — Version with your repo.
- GraphQL — Query + schema explorer.
- gRPC — gRPC client.
- HTTP Client — REST request builder.
- inso CLI — Run API tests + lint specs in CI.
- Insomnia AI — AI-assisted request building.
- Local-First Storage — No account required.
- Mock Server — Build mocks from OpenAPI (Pro).
- Plugins — Extend via Node.js.
- Request Collections — Grouped requests.
- Scratch Pad — Local-only mode (re-added after backlash).
- SOAP — WSDL + SOAP.
- Teams — Shared workspaces.
- Templating Engine — Nunjucks + JS snippets.
- WebSockets — WS connection + messages.
Developer interfaces
| Kind | PostHog | Insomnia |
|---|---|---|
| CLI | — | inso CLI |
| SDK | posthog-android, posthog-flutter, posthog-go, posthog-ios (Swift), posthog-js, posthog-node, posthog-php, posthog-python, posthog-react-native, posthog-ruby | Plugin API |
| REST | PostHog REST API | Insomnia Cloud API |
| MCP | PostHog MCP | — |
| OTHER | Webhooks + Actions | Git Sync (built-in), Insomnia Desktop |
Staxly is an independent catalog of developer platforms. Some links to PostHog and Insomnia 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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