Funnelkeeper compared
Three honest comparisons, including the rows where the other tool wins. Funnelkeeper does one join — spend to revenue — and guards it with a human.
How is Funnelkeeper different from PostHog?
PostHog tells you what users do. Funnelkeeper tells you if the spend paid back. PostHog is the stronger product-analytics tool and stays that way; Funnelkeeper reads the same kinds of events and adds the two things it does not join — ad spend and revenue — so you get a payback verdict per channel.
| Capability | Funnelkeeper | PostHog |
|---|---|---|
| Product analytics, session replay | Not built for it | Yes — its core |
| Ad spend joined by channel | Yes | Manual, via warehouse |
| Cohort payback and LTV:CAC | Yes | Build it yourself in SQL |
| Human-approved ad ops | Yes | No |
| Driven by an AI agent over MCP | Yes | Manual SDK setup |
How is Funnelkeeper different from Cometly and other attribution suites?
Attribution suites are built for agencies buying media at scale, priced and staffed accordingly. Funnelkeeper is built for one founder with a handful of products and an AI agent doing the work. The measurement overlaps; the price, the multi-product model and the agent surface do not.
| Dimension | Funnelkeeper | Cometly / suites |
|---|---|---|
| Entry price | $0, then $39/mo | Typically $200–1,000/mo |
| Several products in one account | Yes | Usually one workspace each |
| Usage-based revenue cohorts | Yes | Checkout-event focused |
| Agent-native API and MCP | Yes | No |
| Unattributed revenue shown separately | Yes | Often modelled away |
Why not just ask ChatGPT or Claude to analyse my numbers?
Ask it and you get a good answer once. What you do not get is shared state: a number your co-founder sees too, a dashboard that is still there tomorrow, and a memory of which actions were taken and what happened next. Funnelkeeper is the state your AI drives.
| What you need | Funnelkeeper | Asking an LLM |
|---|---|---|
| One-off analysis of pasted data | Yes | Yes — and fast |
| Same numbers for the whole team | Yes | No |
| Standing dashboard tomorrow | Yes | No |
| Memory of actions and outcomes | Yes — audit log | No |
| Executes nothing without a human tap | Enforced server-side | Depends on the tools it holds |
Run it next to whatever you already have — it reads, it never rewires.
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