Cassandra vs ScyllaDB: Which is Better in 2026?
Choosing between Cassandra and ScyllaDB comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: ScyllaDB wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. Pick Cassandra if you need a fully free option.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Cassandra
Distributed NoSQL database for massive scale
Best for you if:
- • You want a fully free tool (ScyllaDB requires payment)
- • You want highly scalable
- • You want no single point of failure
ScyllaDB
High-performance NoSQL database
Best for you if:
- • You want fast Cassandra alternative
- • You want good performance
| At a Glance | Cassandra | ScyllaDB |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Data & Databases | Data & Databases |
Rating | 4.1/5 | 3.9/5 |
Free plan | Yes | Yes |
Choose Cassandra or ScyllaDB?
Choose Cassandra if
Distributed NoSQL database for massive scale
- You want a fully free tool (ScyllaDB requires payment)
- You want highly scalable
- You want no single point of failure
Choose ScyllaDB if
High-performance NoSQL database
- You want fast Cassandra alternative
- You want good performance
| Feature | Cassandra | ScyllaDB |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | ★4.1/5 35 reviews | ★3.9/5 12 reviews |
| Categories | Data & DatabasesCloud & Infrastructure | Data & DatabasesCloud & Infrastructure |
In-Depth Analysis
Cassandra
Distributed NoSQL database for massive scale
The pricing for Cassandra is exceptionally fair and generous, as the core product is entirely open source and free to use.
Strengths
- +Highly scalable
- +No single point of failure
- +Good for write-heavy
- +Geo-distribution
- +Open source
Weaknesses
- -Complex to operate
- -Learning curve
- -Query limitations
- -Resource intensive
- -Not for small scale
Key features
ScyllaDB
High-performance NoSQL database
ScyllaDB's pricing is quite fair and generous, especially with a robust open-source option.
Strengths
- +Fast Cassandra alternative
- +Good performance
- +C++ based
- +Active development
- +Good documentation
Weaknesses
- -Learning curve
- -Cassandra compatibility
- -Enterprise features paid
- -Operational complexity
- -Smaller community
Key features
Pricing: Cassandra vs ScyllaDB
| Plan | Cassandra | ScyllaDB |
|---|---|---|
| Tier 1 | Free Open Source | Free Open Source |
| Tier 2 | N/A | Usage-based Cloud Professional |
| Tier 3 | N/A | Custom Cloud Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Cassandra pricing and ScyllaDB pricing.
Who Should Use What?
On a budget?
Cassandra is free. ScyllaDB is freemium.
Go with: Cassandra
Want the highest-rated option?
Cassandra: 4.1/5 (35 reviews). ScyllaDB: 3.9/5 (12 reviews).
Go with: Cassandra
Value user reviews?
Cassandra: 35 reviews (4.1/5). ScyllaDB: 12 reviews (3.9/5).
Go with: Cassandra
3 Questions to Help You Decide
What's your budget?
Cassandra is free. ScyllaDB is freemium. Go with Cassandra if free matters most.
What's your use case?
Both are data & databases tools. Compare their specific features to decide.
How important are ratings?
Cassandra is rated higher: 4.1/5 vs 3.9/5.
Key Takeaways
ScyllaDB
- Free tier available
- Our pick for this comparison
Cassandra
- Completely free
- Higher user rating: 4.1/5 vs 3.9/5
- Larger review base (35 reviews)
The Bottom Line
ScyllaDB wins this matchup. PostgreSQL is our overall Data & Databases pick. PostgreSQL is our free Data & Databases pick. That said, Cassandra is free, hard to beat on price.
Frequently Asked Questions
Is Cassandra or ScyllaDB better?
ScyllaDB is rated in our evaluation. Cassandra is free and ScyllaDB is freemium.
What are Cassandra and ScyllaDB used for?
Cassandra: Distributed NoSQL database for massive scale. ScyllaDB: High-performance NoSQL database.
What does Cassandra cost vs ScyllaDB?
Cassandra is completely free. ScyllaDB is freemium (free tier + paid plans). Visit their websites for detailed pricing.