StackAdapt
Umami
| Feature | StackAdapt | Umami |
|---|---|---|
| Pricing | Contact sales | Free / from $9/mo |
| Free Plan | ✗ No | ✓ Yes |
| Rating | 4.4 / 5 | 4.5 / 5 |
| Best For | agencies, brand-marketers, media-planners, performance-marketers | indie-developers, privacy-focused-sites, bloggers, small-businesses |
| Founded | 2014 | 2020 |
| Native Ads | ✓ | ✗ |
| Display Ads | ✓ | ✗ |
| Video Ctv | ✓ | ✗ |
| Audience Targeting | ✓ | ✗ |
| Contextual Targeting | ✓ | ✗ |
| Creative Studio | ✓ | ✗ |
| Page Views | ✗ | ✓ |
| Custom Events | ✗ | ✓ |
| Realtime Dashboard | ✗ | ✓ |
| Utm Tracking | ✗ | ✓ |
| Multi Site | ✗ | ✓ |
| Api | ✗ | ✓ |
| Teams | ✗ | ✓ |
✓ StackAdapt Pros
- Excellent native ad inventory
- Strong machine learning
- Good customer support
- Multi-channel reach
✗ StackAdapt Cons
- Minimum spend requirements
- Learning curve for platform
- Reporting could be more granular
✓ Umami Pros
- Completely open-source and self-hostable for free
- Beautiful, clean dashboard interface
- No cookies required (GDPR/CCPA compliant by default)
- Lightweight script (under 2KB) does not slow sites
✗ Umami Cons
- Limited advanced analytics features
- No conversion funnel or cohort analysis
- Self-hosting requires database management
The Verdict
StackAdapt is built for agencies and brand marketers, with a focus on native-ads and display-ads. Umami targets indie developers and privacy focused sites and leads with page-views and custom-events.
StackAdapt uses custom enterprise pricing, while Umami starts at $9/mo — a tangible advantage for teams with a fixed budget.
Umami has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. StackAdapt requires a paid subscription from day one.
Feature-wise, Umami offers broader built-in capabilities (7 features vs 6), while StackAdapt takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.