Head-to-Head Comparison · Alternative to DataFast · 📊 analytics
DataFast vs Umami
A lightweight, open-source alternative to Google Analytics that respects user privacy and provides valuable insights. Here is how Umami ($0/mo open source) stacks up against DataFast ($35/mo) across cost, hosting, data privacy, and real-world trade-offs.
Umami is a verified MIT-licensed open-source replacement for DataFast. Switching from DataFast ($35/mo) saves $420/yr per solo seat, or $2,100/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: It is far shallower for cohorts, retention, experimentation, taxonomy governance and behavioral analysis than Amplitude.
DataFast vs Umami Specifications
facts verified 2026-11-07
| Dimension | DataFast (Paid) | Umami (Replacement) |
|---|---|---|
| Monthly Price | $35 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $420 / yr | $0 / yr (Save $420) |
| 1-Year Cost (5 seats) | $2,100 / yr | $0 / yr (Save $2,100) |
| 1-Year Cost (10 seats) | $4,200 / yr | $0 / yr (Save $4,200) |
| Source & License | Proprietary SaaS | open source MIT |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 40k (active nov 2026) |
Deep Dive: Switching from DataFast to Umami
Trade-offs, installation & data architecture
What you trade away
It is far shallower for cohorts, retention, experimentation, taxonomy governance and behavioral analysis than Amplitude.
How to deploy Umami
Create an Umami Cloud account or deploy the Node application with Docker Compose and PostgreSQL
What it takes to run
None for hosted signup; self-hosting requires Docker or Node hosting and a PostgreSQL database
Where your data lives
A self-hosted deployment stores analytics and account data in PostgreSQL; Umami Cloud stores it in Umami's managed service
Why fork Umami instead of vibe-coding a DataFast clone?
Instead of paying recurring SaaS fees for DataFast or rebuilding it from scratch, deploy one of the 7 battle-tested open-source alternatives like Umami.
DataFast vs Umami FAQ
Is Umami a good free alternative to DataFast?+
Yes. Umami is a verified open-source (MIT) replacement for DataFast. A lightweight, open-source alternative to Google Analytics that respects user privacy and provides valuable insights.
What is the catch when switching from DataFast to Umami?+
It is far shallower for cohorts, retention, experimentation, taxonomy governance and behavioral analysis than Amplitude.
How much do you save switching from DataFast to Umami?+
DataFast costs $35/mo ($420/yr) per seat, whereas Umami is $0/mo. Switching saves $420/yr for a solo user, $2,100/yr for a 5-person team, and $4,200/yr for a 10-person team.
How do I install or self-host Umami instead of DataFast?+
Install: Create an Umami Cloud account or deploy the Node application with Docker Compose and PostgreSQL. Setup: None for hosted signup; self-hosting requires Docker or Node hosting and a PostgreSQL database
