Comparison
ThorStack vs PostHog
PostHog is an engineering-led product analytics platform, events, funnels, session replay, feature flags, experiments, and surveys, on cloud or self-hosted. ThorStack Growth is one website embed that activates lead-capture popups, an AI chat concierge, behaviour analytics, heatmaps, session replay, funnels, segments, and A/B testing, and writes captured leads straight into the CRM of a full business operating system.
Why no free trial?
ThorStack is a dedicated deployment: your own database, your own app instance, your own data. A shared demo environment would defeat the point. Instead, we scope your exact stack on a 30-minute call and have you live in 5 business days.
- You're a product or engineering team instrumenting an app and want deep event analytics, feature flags, and experiments in one tool.
- You want the option to self-host or run open-source with infrastructure-level data ownership.
- Your analysts need a SQL/insights layer and autocapture across a single-page app.
- You're marketing- or conversion-led and want lead capture, an AI concierge, and on-site experiments from one embed, not an analytics SDK to instrument.
- You want captured leads to flow straight into a CRM with finance, commerce, and an AI workforce behind it, not just a dashboard.
- You want heatmaps over real page screenshots and a managed dedicated deployment, not a product-analytics warehouse to operate.
Side by side
Reviewed 2026-05-28. Public sources only; see footer note.
| Feature | ThorStack | PostHog |
|---|---|---|
| What it's for | ||
| Primary focus | Website conversion, lead capture, on-site analytics | Product analytics for apps |
| Primary user | Growth / marketing / founder | Product / engineering |
| Setup | One <script> embed | SDK instrumentation + autocapture |
| Capture & analytics | ||
| Session replay | Native (rrweb, opt-in, PII-masked) | Native (rrweb) |
| Heatmaps | Click density over auto-captured page screenshots | Heatmaps via browser toolbar |
| Funnels | Native, z-test, per-step drop-off | Native (flagship) |
| Behaviour segments | Native, up to 12 conditions | Cohorts |
| Feature flags | Not offered | Native (flagship) |
| Conversion tooling | ||
| Lead-capture popups | Native, modal, inline, progressive | Not offered |
| AI chat concierge (RAG) | Native, grounded on your content, cites sources | Not offered |
| A/B testing | Popup-variant experiments, z-test + Wilson 95% CI | Experiments + feature-flag rollouts |
| On-site surveys | Behavioural events (no survey builder) | Native |
| Beyond the embed | ||
| CRM (leads sync automatically) | Native | Not offered |
| Inbox, commerce, finance | Native, full business OS | Not offered |
| AI workforce | 8 specialist agents with approval gates | Max AI (analytics assistant) |
| Deployment & pricing | ||
| Deployment | Dedicated per-tenant | Cloud (US / EU) or self-host |
| Pricing model | $300 / month platform (Growth included per plan) | Usage-based per event / recording; generous free tier |
| Compliance posture | SOC 2 Type II, GDPR, ISO 27001 aligned | SOC 2, GDPR, HIPAA |
Comparison drawn from PostHog's public pricing pages, documentation, and statements at the date above. We aim to be accurate; if a detail here is out of date, please email us and we'll fix it.
The real cost
What you actually pay each month
PostHog + tools you still need
- PostHog (analytics + session replay)£24/mo
- Hotjar (heatmaps)£32/mo
- OptinMonster (lead-capture popups)£24/mo
- Total£80/mo
ThorStack (all-in)
- ThorStack: all of the abovefrom £236.22/mo
- Included
- Included
- Totalfrom £236.22/mo
Assembled point tools can come in under ThorStack on price. The trade is one embed, an AI concierge, and leads landing in a CRM versus a stack you wire together.
Pairing tools and list prices are representative examples in GBP, drawn from public pricing pages. Your stack and prices will differ, so the calculator lets you enter your own.
When teams switch
From PostHog to ThorStack
Teams reach for ThorStack over PostHog when their goal is converting website traffic, not analysing an app, when they want popups, an AI concierge, and A/B tests that capture leads into a CRM, rather than an event pipeline and feature flags they instrument and operate. Many product teams keep PostHog for in-app analytics and run ThorStack Growth on the marketing site; the two answer different questions.
Ready for a stack
built around you?
Every ThorStack deployment starts with a 30-minute call. Tell us how you operate, and we'll show you what your stack would look like.