Flowsery vs Umami
Privacy-first cloud analytics vs open-source self-hostable analytics β compared for 2026.
Last updated: April 2026
TL;DR
Umami is an open-source analytics platform that can be self-hosted or used as a managed cloud service. Their Hobby plan is free (100k events/month, 3 sites, 6 months retention), and paid plans start at $20/month with 1M events and 2-year retention. Umami includes funnel analysis, goals, user journey tracking, retention analysis, revenue tracking, and attribution on all plans β making it one of the most feature-rich options in the privacy analytics space. Flowsery also offers a free tier (5k events/month), a sub-1 KB script, and funnel analysis on Pro plans. Choose Umami if you want open-source flexibility, self-hosting, or the most built-in features per dollar. Choose Flowsery if you want a lighter script, simpler cloud-only setup, and a straightforward analytics experience.
Feature Comparison
Feature | Flowsery | Umami |
|---|---|---|
Privacy Compliance | GDPR, CCPA, PECR compliant β no cookies | GDPR, CCPA compliant β no cookies |
Free Tier | Yes β 5k events/month, unlimited sites, 6 months retention | Yes β 100k events/month, 3 sites, 6 months retention |
Goal Tracking | Built-in with conversion funnels | Goals, retention, revenue, and attribution on all plans |
Funnel Analysis | Yes β on Pro plan | Yes β on all plans including free |
Custom Events | Yes β included in Pro plan | Yes β included in all plans |
REST API | Full API access on Pro plan | Full API access on all plans |
Self-Hosting | Cloud-hosted only | Yes β open-source, fully self-hostable |
Script Size | < 1 KB | ~ 2 KB |
Real-Time Dashboard | Yes β live visitor view | Yes β live visitor view |
Where Flowsery Wins
Unlimited Sites on Free
Flowsery's free plan allows unlimited sites. Umami's free Hobby plan is limited to 3 sites, which can be restrictive if you manage multiple projects.
Lighter Script
Flowsery's tracking script is under 1 KB β roughly half the size of Umami's script. For performance-sensitive sites, every byte counts toward Core Web Vitals.
Simpler Cloud-Only Setup
Flowsery is a fully managed cloud service with zero infrastructure to maintain. No Docker, no databases, no server updates. Just add the script and go.
No Sampling
Flowsery processes every single pageview and event with no data sampling. You get 100% accurate analytics data regardless of traffic volume.
Where Umami Wins
Open Source & Self-Hosting
Umami is fully open source and can be self-hosted on your own infrastructure. This gives you complete data ownership and eliminates SaaS dependency.
More Features on Free Tier
Umami's free plan includes 100k events/month with funnel analysis, goals, user journeys, retention tracking, revenue analytics, and attribution. Flowsery's free tier has fewer advanced features.
Session Replays and Advanced Analytics
Umami's Business plan includes session replays, white-labeling, and advanced analytics features. These are powerful tools for understanding user behavior at a granular level.
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Want unlimited sites on the free plan
- β
Need the lightest possible tracking script (< 1 KB)
- β
Prefer a fully managed cloud service with zero maintenance
- β
Want straightforward analytics without infrastructure complexity
- β
Want to self-host your analytics on your own servers
- β
Need the most features on a free plan (funnels, goals, attribution)
- β
Prefer open-source software you can audit and contribute to
- β
Need session replays and advanced behavioral analytics
Frequently Asked Questions
Try Flowsery Free
Privacy-first analytics with a sub-1 KB script and unlimited sites. Free for up to 5k events/month β no credit card required.