---
title: "PostHog vs Landtest for A/B Testing a Next.js Landing Page"
description: "PostHog bundles experiments with full product analytics. Landtest is scoped to one thing — landing page tests that ship and clean up as GitHub PRs. When each makes sense."
canonical: https://landtest.dev/blog/posthog-vs-landtest
last-updated: 2026-10-30
---

# PostHog vs Landtest for A/B Testing a Next.js Landing Page

> PostHog bundles experiments with full product analytics. Landtest is scoped to one thing — landing page tests that ship and clean up as GitHub PRs. When each makes sense.

PostHog is an all-in-one product analytics platform — session replay, funnels, feature flags, and experiments — where A/B testing is one feature among many, billed on the same usage-based pricing as the rest of the platform. Landtest is scoped to exactly one job: A/B testing a landing page, with the variant generated as a GitHub branch and the split run through your deploy pipeline instead of a client SDK. If you want one tool for all your analytics needs, PostHog is built for that. If you want a landing page test that starts and ends as a PR with nothing left behind, that's Landtest's scope.

This is Landtest's own comparison content. Last updated 2026-09-30.

## What PostHog does well

PostHog consolidates tools a team would otherwise buy separately — session replay, heatmaps, funnels, feature flags, and experiments — into one platform and one bill. For a team already using PostHog for product analytics, adding a landing page experiment is a natural extension rather than a new vendor. [PostHog's own experiments page](https://posthog.com/experiments) documents the feature set directly.

## Where the two diverge

**Pricing model.** PostHog's feature flags and experiments share a billable-request pool — the first 1 million flag requests are free monthly, then $0.0001 per request, scaling down at volume. Reviewers comparing PostHog against flag-focused competitors note it's [consistently the more expensive option](https://www.statsig.com/comparison/top-alternatives-posthog-experimentation) at scale, partly because default autocapture can burn through the free tier on low-value events before a test even starts. Landtest's cost isn't tied to page-load event volume, since there's no client SDK firing on every request.

**SDK footprint.** PostHog ships a client-side SDK that captures events, replays sessions, and evaluates flags in the browser — powerful, but it's JavaScript running on every visitor's page regardless of whether they're in a test. Landtest's variant split happens at the hosting/deploy layer; there's no SDK evaluating anything client-side for the purpose of the test.

**Scope.** PostHog is a general analytics platform that happens to include experimentation. Landtest is an experimentation tool scoped specifically to landing pages, with AI-generated variants reviewed as live previews before they ship, and a cleanup PR that removes the losing branch and test scaffolding when you declare a winner.

## Which one to pick

Choose PostHog if you want (or already have) one platform for analytics, replay, and experiments, and the usage-based pricing fits your traffic. Choose Landtest if the job is specifically landing page A/B testing, you want the variant generated against your actual codebase rather than hand-built, and you'd rather not add a general-purpose analytics SDK just to run one test.

Some teams run both: PostHog for product analytics and in-app experiments, Landtest for the marketing landing pages where a PR-based workflow and zero-SDK footprint matter more.

## FAQ

**Does PostHog work with Next.js?**
Yes, PostHog has an official Next.js SDK for both client and server-side event capture and flag evaluation.

**Is PostHog experimentation free?**
The first 1 million feature flag requests (which experiments share) are free monthly, then usage-based pricing applies per additional request.

**Does Landtest replace PostHog's analytics?**
No — Landtest's analytics are scoped to the tests you run (pageviews, goals, CR), not general product analytics like session replay or funnels across your whole app.

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Related: [Best A/B testing tools for Next.js developers](/blog/best-ab-testing-tools-nextjs-developers) · [GrowthBook vs Landtest](/blog/growthbook-vs-landtest) · [Landtest for A/B testing](/ab-testing)