Upstash vs PostHog
Serverless Redis + Kafka + Vector + QStash — per-request pricing
vs. Open source product analytics — all-in-one dev tool
Pricing tiers
Upstash
Free
Redis: 256 MB + 500k cmds/mo. Vector: 10k queries/mo. QStash: 500 msgs/day.
Free
Pay-as-you-go
Redis: $0.2 per 100k cmds. Vector: $0.4/M queries. QStash: $1 per 100k.
$0 base (usage-based)
Fixed Plans
From $10/mo. 250MB-500GB Redis. $5/read region. 50GB bandwidth included.
$10/mo
Prod Pack
+$200/mo per DB. SLA + RBAC + encryption + SOC-2 + Prometheus + Datadog.
$200/mo
Enterprise
Custom. 100k+ cmd/sec, unlimited bandwidth, HIPAA.
Custom
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
Free-tier quotas head-to-head
Comparing free on Upstash vs free on PostHog.
| Metric | Upstash | PostHog |
|---|---|---|
| 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
Upstash · 12 features
- Cron (via QStash) — Scheduled HTTP callbacks on any interval.
- Edge-Ready — Native for CF Workers, Vercel Edge, Deno, Bun.
- Global Database — Multi-region Redis reads.
- HTTP REST APIs — Every product has REST — works from edge runtimes.
- QStash — HTTP-based message queue + cron scheduler for webhooks.
- QStash Webhooks — Outgoing webhook delivery with retries + DLQ.
- Read Regions — Add read replicas in any region ($5/mo each).
- @upstash/ratelimit — Redis-backed rate limiter lib.
- Upstash Redis — Serverless Redis with HTTP REST + RESP TCP.
- Upstash Search — Full-text + semantic search engine.
- Upstash Vector — Serverless vector DB with REST API. HNSW indexing.
- Upstash Workflow — Durable workflow runtime built on QStash.
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.
Developer interfaces
| Kind | Upstash | PostHog |
|---|---|---|
| SDK | upstash-redis / vector (Python), @upstash/redis / vector / qstash | posthog-android, posthog-flutter, posthog-go, posthog-ios (Swift), posthog-js, posthog-node, posthog-php, posthog-python, posthog-react-native, posthog-ruby |
| REST | QStash REST API, Upstash Redis REST API, Upstash Vector REST | PostHog REST API |
| MCP | — | PostHog MCP |
| OTHER | RESP (TCP) | Webhooks + Actions |
Staxly is an independent catalog of developer platforms. Some links to Upstash and PostHog 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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