Best Analytics & monitoring
Product analytics, errors and uptime for shipped apps.
“Analytics” covers four different jobs: traffic stats for your pages, product analytics on what users do inside the app, error tracking, and uptime checks. A typical shipped app ends up with one tool for traffic or product analytics plus one for errors. How to choose
Scores are based on research verified Oct 15, 2026, using our methodology.
Showing 14 of 14 tools
| # | Name | Score | Free | OSS |
|---|---|---|---|---|
| 1 | PostHog | 91 | Yes | Yes |
| 2 | Sentry | 84 | Yes | No |
| 3 | Umami | 84 | Yes | Yes |
| 4 | Better Stack | 81 | Yes | No |
| 5 | Plausible | 79 | No | Yes |
| 6 | OpenPanel | 78 | No | Yes |
| 7 | openstatus | 77 | Yes | Yes |
| 8 | Rybbit | 77 | No | Yes |
| 9 | Cloudflare Web Analytics | 75 | Yes | No |
| 10 | OpenReplay | 75 | Yes | Yes |
| 11 | Vercel Web Analytics | 74 | Yes | No |
| 12 | Google Analytics 4 | 73 | Yes | No |
| 13 | Fathom Analytics | 69 | No | No |
| 14 | Simple Analytics | 68 | Yes | No |
How to choose analytics & monitoring
Traffic stats without a cookie banner
Umami Cloud is free forever for 100K events a month on one website, and the MIT-licensed app can be self-hosted. Plausible has no free cloud tier (30-day trial, then from $9/mo) but its AGPL edition is free to self-host. Fathom starts at $15/mo for 100K pageviews with no free plan, Simple Analytics is free for hobby sites with a badge, and Vercel Web Analytics includes 50,000 events a month on Vercel’s Hobby plan. Google Analytics 4 is free but usually needs a consent banner; it fits apps that run Google Ads or need BigQuery. Rybbit (77) is a newer open-source, cookieless option with no free cloud plan (7-day trial, Standard from $13/mo billed annually for 100K pageviews) that adds web vitals and error tracking, plus session replays on Pro from $26/mo billed annually. Cloudflare Web Analytics (75) is free with no event limit: one snippet on any host, or a one-click toggle on Cloudflare Pages, plus real-user Core Web Vitals, but no custom events or UTM tracking yet.
Product analytics, replays and flags
PostHog ranks highest at 91 because one free tier covers 1M analytics events, 5K session replays, 1M feature-flag requests and 100K error exceptions each month, with no credit card. That replaces three separate vendors for most early apps. OpenPanel (78) is a lighter open-source alternative (AGPL-3.0) with funnels, retention, profiles and session replay, cookie-less by default and priced only by events with unlimited sites: no free cloud plan, but a 30-day trial, then $20/mo for 100K events, or free to self-host.
Errors and uptime
Sentry’s Developer plan is free forever for one user and covers error monitoring and tracing, with Team from $26/mo billed annually. Better Stack is free for personal projects with 10 monitors and a status page, so you hear about downtime before your users do.
Best web analytics for vibe-coded apps (full guide) →OpenPanel vs PostHog →Rybbit vs Plausible →
Prices are list prices from official pages, checked Oct 15–17, 2026. Scores never depend on sponsorship or affiliate links.
FAQ
- What is the best free analytics for a vibe-coded app?
- PostHog, if you want product analytics, session replay and feature flags in one free tier. For simple, privacy-friendly traffic stats, Umami Cloud’s free Hobby plan covers 100K events a month on one site.
- Do I need Sentry if I already use PostHog?
- PostHog’s free tier includes 100K error exceptions a month, which is enough for many early apps. Sentry (84) goes deeper on production error tracking and performance tracing, and its Developer plan is free for one user.
- Is Plausible free?
- Not on its cloud: Plausible has a 30-day free trial with no card, then starts at $9/mo. Self-hosting the open-source edition is free.
- Which open-source analytics can I self-host for free?
- Umami (MIT), Plausible, OpenPanel and Rybbit (all AGPL-3.0) are free to self-host, and PostHog has an MIT-licensed open-source edition. You pay only for the server. On the cloud, only Umami and PostHog have free plans.