Independent · Neutral · Updated 2026-10-19
What your analytics stack actually costs at your volume.
StackMeter tracks public pricing for 18 product analytics, session replay and LLM observability vendors, turns it into side-by-side monthly estimates, and logs every price change, acquisition and shutdown.
Categories
Product analytics
Event-based analytics: funnels, retention, cohorts.
5 vendors tracked
At 5M events/mo, published list prices range from $153 (PostHog) to $613 (Mixpanel).
Estimate product analytics →Session replay
Recordings, heatmaps and frustration signals.
8 vendors tracked
At 50K sessions/mo, published list prices range from $0 (Microsoft Clarity) to €399 (Mouseflow).
Estimate session replay →LLM & agent observability
Tracing, evals and cost tracking for LLM apps and agents.
8 vendors tracked
At 1M traces/mo, published list prices range from $36.00 (Braintrust) to $4,989 (LangSmith).
Estimate llm & agent observability →Estimate, check vendor page. Figures are list prices computed from publicly posted pricing on the "last checked" date. They exclude taxes, discounts, add-ons, seats and contract terms unless stated. Always confirm on the vendor's own pricing page.
Recent changes
- Dynatrace completes Arize acquisitionacquisition
- Dynatrace agrees to acquire Arize for $915Macquisition
- Laminar raises $3M seedfunding
- Mintlify acquires Heliconeacquisition
- Helicone moves into maintenance modemaintenance-mode
- ClickHouse acquires Langfuseacquisition
The weekly pricing digest
One short email a week: price changes we detected, vendor news (acquisitions, shutdowns, new free tiers) and one deep-dive comparison.
Why StackMeter
- Sourced, not guessed. Every price links to a dated snapshot of the vendor's page. If it isn't published, we say "contact sales".
- Neutral. Sponsors never change the order or the numbers.
- Watched daily. A refresh job diffs pricing pages and logs changes.