FullStory vs Weaviate: Full Comparison (2026)
Pricing, features, scores, and a clear verdict on which one is right for you.
The bottom line
FullStory positions itself as "complete digital experience intelligence" while Weaviate goes after "the ai-native vector database" — so the right pick depends on which problem you're actually solving. Both use freemium pricing, but FullStory charges custom while Weaviate charges per cluster — a meaningful difference for larger teams. FullStory (founded 2014) has had more time to build out its ecosystem and integrations, while Weaviate (2019) tends to move faster on modern UX and newer workflows.
At a glance
| FullStory | Weaviate | |
|---|---|---|
| Our score | 80/100 | 83/100 |
| Starting price | Free | Free |
| Free tier | Yes | Yes |
| Best for | Complete digital experience intelligence | The AI-native vector database |
Pricing comparison
Calculate your cost
Feature comparison
core
| Feature | FullStory | Weaviate |
|---|---|---|
| Session replay | Yes | No |
| Heatmaps | Yes | No |
| Funnels | Yes | No |
| Error tracking | Yes | No |
| Custom events | Yes | No |
| Vector search | No | Yes |
| Hybrid search | No | Yes |
| Multi-modal | No | Yes |
| GraphQL API | No | Yes |
| REST API | No | Yes |
Ratings breakdown
What the data tells us
Key capabilities you'd miss
Choosing FullStory means going without Vector search, Hybrid search, Multi-modal (which Weaviate offers). Choosing Weaviate means losing Session replay, Heatmaps, Funnels. These are the features that typically drive the final decision — check whether your workflow depends on any of them before committing.
What company size tells you
Weaviate (51-200 employees) has the engineering bench to ship features across many fronts but may iterate slower on individual requests. FullStory (501-1000 employees) typically ships faster on its core product but may lag on peripheral features. Consider which matters more for your roadmap.
Choose FullStory if...
- You want a free tier to get started
- You value powerful features over simplicity
- You need enterprise-grade capabilities
Choose Weaviate if...
- You want a free tier to get started
- You value powerful features over simplicity
- Getting strong value for money is a priority
Frequently asked questions
Is FullStory or Weaviate better?
Weaviate scores 83/100 compared to FullStory's 80/100 on VendorVS. However, the best choice depends on your needs — FullStory excels at ease of use (7/10) while Weaviate scores 7/10.
How much does FullStory cost compared to Weaviate?
FullStory starts at free (free tier available). Weaviate starts at free (free tier available). FullStory is the more affordable option.
Does FullStory or Weaviate have a free plan?
Yes, both FullStory and Weaviate offer free tiers, so you can try each before committing to a paid plan.
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