サイトとプロダクトの解析のおすすめ（2026年）: 14件から選んだトップ3

サイトとプロダクトの解析ツールのトップ3

The three serve different readers. Google Analytics comes first: it is free at any size and shows who visits and what they do. PostHog is second for product teams that want analytics, recordings and experiments on one free monthly allowance. Plausible is third for site owners who want counts without cookies. Microsoft Clarity grades above Plausible, but it records visits and builds heatmaps to sit beside a page counter, and keeps data 30 days. Fathom narrowly missed: $12.50 a month billed yearly covers 100k pageviews, but its trial needs a card.

1. 1

   1位: Google Analytics

   無料プラン

   Most website owners 向け

   Google Analytics shows where visitors come from, which pages they view and which campaigns lead to sales or sign-ups, with funnel and path explorations, data-driven attribution, and links to Google Ads, Search Console and BigQuery. The standard version is free for sites and apps of any size. It runs on the web, iPhone and Android, and its iPhone and iPad app averages 4.6 from about 5,200 ratings. Know the limits: it does not record visits, user- and event-level data is kept for 14 months at most, and data within the hour and longer history are Analytics 360 features, priced through Google's sales team.

   iPhone・iPad アプリ: App Store で5点中4.6

   Google Analytics の料金と詳細
2. 2

   2位: PostHog

   無料プラン · $0.00005 から

   Product teams and developers measuring an app or site 向け

   PostHog puts product and web analytics, session recordings, feature flags, A/B tests, surveys and error tracking under one sign-up. Each has a free allowance that resets monthly: 1M events, 5,000 recordings and 1,500 survey responses, with unlimited members. Past it you pay per use from $0.00005 an event, with a spending limit per product, and the code is open source. It is second because it takes more learning than a page counter and the free plan has edges: 1 project, recordings kept a month, SSO only with the $250-a-month Boost package, and self-hosting officially unsupported. Amplitude's free plan allows 2M events but only 10 saved charts.

   PostHog の料金と詳細
3. 3

   3位: Plausible

   無料プラン · $7.50/月 から

   Site owners who want visitor counts without cookies 向け

   Plausible counts visits without cookies or personal data, so the vendor says no cookie banner is needed, and shows visitors, sources, pages, goals and campaigns on one page, processed on EU-owned servers in Germany. Starter is $7.50 a month billed yearly for one site and up to 10k pageviews, or $19 a month at 100k billed monthly, after a 30-day trial with no card, and the free Community Edition runs on your own server. It is third because it does a smaller job: there are no recordings or per-visitor profiles, funnels and ecommerce revenue start on Business, and there is no free hosted plan.

   Plausible の料金と詳細

2026/10/18 に、各ツールの掲載情報とそのツールについて語られていることをもとに順位をつけました。私たち自身のテストによるものではありません。 順位のつけ方