PostHog answers on demand.
Lunar Dinos tells you who to act on.
Lunar Dinos is proactive product analytics for B2B SaaS. PostHog AI answers when you ask and fires Slack alerts when metric thresholds cross — both reactive. Every Monday, Lunar Dinos tells you what to act on: which accounts need attention, which product friction to fix, with the reason and the next step for each. EU-hosted by default.
What to act on this week
What lands in your inbox every Monday. Two pillars: accounts that need action, and product changes that would move the needle. Each one names the reason and suggests the next step. With PostHog AI, you'd have to know to ask — for every account and every flow, every week.
Account — trial stalling
"Trilobite Labs stalled at onboarding step 2 for 4 days. Converting trials complete integration in days 1–3 at 2.4× the rate."
→ Founder DMs the champion today with integration help.
Account — churn risk
"Rex Systems. Admin hasn't logged in 8 days. Core feature usage dropped 60% in 2 weeks. Renewal in 21 days."
→ CS schedules an executive call this week.
Product — friction
"Onboarding step 3 completion dropped from 74% to 51% since release 3.12 last Thursday."
→ PM checks the flow with engineering today.
Product — retention gap
"Feature Z adopted by 32% of retained accounts, only 9% of churners — and 60% of active accounts haven't discovered it."
→ Ship in-app nudge + PMM enablement.
How they compare
Honest side-by-side. PostHog is strong where it's built to be strong.
Last reviewed: April 2026
| PostHog | Lunar Dinos | |
|---|---|---|
| Activation insights | Ask the chat | Weekly briefing per account |
| Churn risk, named accounts | Ask the chat | Auto-detected, ranked, with next step |
| Expansion signals per account | Ask the chat | Surfaced with suggested talk track |
| AI feature adoption per account | Generic event tracking | Native semantic layer |
| Weekly action recommendations | Not a shipped feature | Core product |
| Alerts in Slack | Event thresholds ("metric X crossed Y") | Actions with context & next step |
| Proactive synthesis (no prompt) | No — reactive chat | Yes — weekly, per account |
| Session replay | Yes | Yes |
| Feature flags & A/B testing | Yes | No |
| Surveys | Yes | No |
| Error tracking | Yes | No |
| Open source / self-hostable | Yes | No |
| EU-hosted by default | EU Cloud option | Yes |
What founders actually run into
From conversations with B2B SaaS founders using PostHog AI in April 2026.
Where PostHog AI shines
Dashboards and custom insights build reliably. In one case the AI correctly traced a user spike back to preview environments and suggested the right filters — solid root-cause analysis.
Where it breaks down
"Why aren't users converting?" didn't yield a useful answer. Insights appearing mid-conversation felt more confusing than helpful. The "why" behind a metric is still the hardest question.
The gap Lunar Dinos fills
Reaching the specific inactive, non-converted accounts — who to contact this week and what changed for them — is the job PostHog AI doesn't do. That's the job Lunar Dinos is built for.
What it looks like in practice
The Monday briefing is the artifact. Drill-downs follow.
Pushed to /chat and your inbox every Monday. TL;DR up top, expanded items below. Every claim links to its evidence — session replays, screenshots, the underlying SQL. PostHog AI ships none of this.
Drill down: trials stalling today
Click any briefing item and you land in the underlying analysis. The "Trilobite Labs stalled at onboarding step 2" line opens to the named-account view with the exact step that broke and a ready-to-send founder message.
Churn: the full context, not a threshold ping
Event alerts tell you a metric crossed a line. PostHog AI can tell you retention is declining — if you ask. Lunar Dinos tells you the week's priorities: which specific accounts are slipping, which champion went dark, which feature stopped getting used, and who on your team should reach out with what.
Ask any item to dig deeper
Every briefing item opens a follow-up conversation pre-loaded with the full context. The system has already watched the relevant sessions, run the queries, and cross-referenced your release timeline — so the deep-dive arrives already synthesized.
Choosing between them
PostHog is the right choice if...
- Feature flags, A/B testing, or error tracking are primary
- Open source and self-hosting are hard requirements
- Your primary users are engineers
- Your team has the bandwidth to query and interpret chat answers weekly
Lunar Dinos is the right choice if...
- You want this week's priorities ready on Monday, with a specific next step
- You ship AI features and need to know whether accounts actually use them
- Your whole team — founders, product, CS, sales — needs to act on the same signals
- Your data has to stay in the EU
What PostHog leaves for you to figure out
Your week's priorities — accounts and product — each with the reason and the next step. Delivered every Monday.