vs
PostHog vs Sentry
They overlap now: PostHog has error tracking and Sentry has session replay. The core jobs still differ. PostHog tells you what users do. Sentry tells you what broke in your code and why.
Side by Side
| PostHog | Sentry | |
|---|---|---|
| What It Is | Open-source product analytics suite with session replay, feature flags and experiments. | Application monitoring for error tracking, tracing and performance. |
| Category | Analytics & Monitoring | Analytics & Monitoring |
| Built For | Product analytics, session replay, feature flags, experiments and surveys in one platform. | Error monitoring, tracing, profiling, plus uptime and cron monitors. |
| Free Tier | Every month: 1M analytics events, 5K recordings, 1M flag requests, 100K exceptions. Unlimited team members. | Developer plan: one user, error monitoring and tracing, email alerts. |
| Tags | ||
| Pricing | Free tier resets monthly. Above it, pay as you go per product, with a billing limit on most products. No minimums. | Developer is free for one user. Team $26/mo and Business $80/mo, billed annually with default prepaid data. Extra usage is pay as you go. |
| Website | posthog.com | sentry.io |
| On Digidle |
Pricing and plan details checked October 28, 2026 on each vendor's official pages: PostHog pricing, Sentry pricing. Plans change, so confirm before you buy.
Which One to Pick
Pick PostHog If
You want to see what users do, ship behind flags, run experiments and catch exceptions, all in one tool with a big free tier.
More on PostHogPick Sentry If
Your priority is finding and fixing production errors and slow code, with stack traces, tracing and profiling built for developers.
More on SentryBuilt a tool in Analytics & Monitoring? Get it featured at the top of its category for 30 days.
On the App monitoring list.
The 2 biggest AI stories, every morning.
One short email: the two stories that matter, and why.
You're in.
The Daily AI Brief will land in your inbox soon. If you don't see it, check Promotions or Spam and move it to your main inbox.