PostHog vs Umami
Both are alternatives to Amplitude. Here's how they stack up — verified facts, no spin.
Also searched as Umami vs PostHog — same comparison, one verdict.
Both are product analytics tools with the same broad shape, but Umami scores 95 against PostHog's 85 on data ownership and exit cost — the gap is in how easily you could leave.
PostHog
TOP PICKProduct analytics, session replay, flags and experiments in one self-hostable product.
PostHog is the most complete answer here because it collapses several line items into one: product analytics, session replay, feature flags, A/B testing, surveys and a data warehouse, all in a product you can run on your own infrastructure. For teams currently paying Amplitude for analytics and LaunchDarkly for flags, that consolidation is often the real saving rather than any single rate. Around 37.4k stars and pushed to daily. The licence needs stating precisely: the core is MIT, but the `ee/` directory is licensed separately as enterprise — so it is MIT-with-a-carve-out rather than plain MIT, which is how it is usually described.
Umami
One clean dashboard, no cookies, five minutes to deploy.
Umami is deliberately small: page views, referrers, countries, devices and events on a single readable dashboard, with no cookies, no personal data and a script around two kilobytes. It runs on Node with Postgres or MySQL and deploys in minutes. MIT, about 38k stars. It is the honest recommendation for a large number of teams who believe they need product analytics and actually need to know which pages people read and where they came from — and the tracking script being 2 KB rather than 45 KB is a real difference on a phone.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| PostHog | Umami | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 85 | 95 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first data | Yes | Yes |
| License | MIT core, with an `ee/` enterprise directory carve-out | MIT |
| Pricing | Generous free tier on cloud; self-hostable at no licence cost for the MIT core. | Free and open source to self-host. Umami Cloud has a free tier and paid plans. |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | 16 GB, and that number is not padded. ClickHouse, Kafka, Zookeeper, PostgreSQL, Redis/Valkey, Temporal with Elasticsearch, a headless Chromium and a few dozen PostHog services all share it (about 38 services in the hobby compose file). | 1 GB with PostgreSQL alongside |
| Realistic running costWhat the box costs each month if you run it yourself. | $19–25/mo for a 16 GB Hetzner cloud server in the EU (the CX43 is $18.49 before VAT and IPv4, at June 2026 prices), or about $96/mo for 16 GB at DigitalOcean. ClickHouse, Kafka, Zookeeper, Postgres, Redis and object storage all run on that one box, so there is no separate bill, but they are why it needs 16 GB. | $10–18/mo, and it runs on a free-tier serverless host comfortably |
| Setup timeHonest first-install estimate, not the marketing quickstart. | 30 minutes for the script, then 5–10 minutes for migrations and TLS. Give it a week before you trust it. | 30 minutes |
| Ongoing maintenanceThe part nobody budgets for. | Run `upgrade-hobby` often, because PostHog ships continuously from master with no tagged releases. Take a full backup before every upgrade, as the docs instruct. PostHog offers no customer support for self-hosted instances. | Low. One container and a database, with no archiving job to schedule. |
PostHog is Macrostack's recommended Amplitude alternative, so it's our pick here.
Weighing both against staying on Amplitude? Is Amplitude free? What it actually costs →
PostHog
Strengths
- +Replaces analytics, session replay, flags and experiments with one tool
- +Self-hostable, so behavioural data never leaves your infrastructure
- +Autocapture means useful data before anyone writes a tracking plan
- +Very generous free tier if you would rather use the hosted version
Trade-offs
- −Self-hosting at volume means operating ClickHouse — a real commitment
- −The `ee/` directory is not MIT despite the project's reputation
- −Heavier and more complex than a focused analytics tool
- −Analysis depth still trails Amplitude for sophisticated cohort work
Umami
Strengths
- +Genuinely simple — one dashboard, no training required
- +No cookies and no personal data, so no consent banner
- +Roughly 2 KB script, a meaningful page-speed win on mobile
- +MIT with no enterprise carve-out
Trade-offs
- −No funnels, cohorts or retention analysis worth the name
- −Not a product-analytics tool — do not expect it to be
- −No session replay or heatmaps
- −Small feature surface by design; you will outgrow it if you need depth
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose PostHog
if replaces analytics, session replay, flags and experiments with one tool.
Choose Umami
if a lower exit cost matters more to you than any single feature, and genuinely simple — one dashboard, no training required.
Neither, yet
if both carry a real cost you should weigh first — self-hosting at volume means operating ClickHouse — a real commitment, and no funnels, cohorts or retention analysis worth the name. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
Self-hosting PostHog
16 GB, and that number is not padded. ClickHouse, Kafka, Zookeeper, PostgreSQL, Redis/Valkey, Temporal with Elasticsearch, a headless Chromium and a few dozen PostHog services all share it (about 38 services in the hobby compose file). RAM · 30 minutes for the script, then 5–10 minutes for migrations and TLS. Give it a week before you trust it.
$19–25/mo for a 16 GB Hetzner cloud server in the EU (the CX43 is $18.49 before VAT and IPv4, at June 2026 prices), or about $96/mo for 16 GB at DigitalOcean. ClickHouse, Kafka, Zookeeper, Postgres, Redis and object storage all run on that one box, so there is no separate bill, but they are why it needs 16 GB.
Self-hosting Umami
1 GB with PostgreSQL alongside RAM · 30 minutes
$10–18/mo, and it runs on a free-tier serverless host comfortably
PostHog vs Umami — common questions
Is PostHog a better fit than Umami for product analytics?
It depends on what you are optimising for, and the honest split is this: Umami scores 95 to PostHog's 85 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. PostHog earns its place on a different axis — replaces analytics, session replay, flags and experiments with one tool. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
PostHog keeps its data local or in open formats, so leaving is an export rather than a negotiation. Umami is still self-hostable, so the files stay on your server either way — but it is not local-first by design, so check what its export produces before you rely on it.
Can I self-host PostHog or Umami?
Both can be self-hosted. The difference is what it costs you in time rather than whether it is possible — see the setup and maintenance rows above.
Are PostHog and Umami both alternatives to Amplitude?
Yes — both appear in our Amplitude comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off Amplitude and now choosing between the two replacements, which is a narrower and much easier question.
Related alternative guides
Facts verified 2026-07-31. Licenses and pricing change — spotted something out of date? That's a correction we want.