Is Cassandra or Knack better?

Neither clearly leads. Cassandra starts at Free and Knack at $59/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Cassandra or Knack?

Cassandra has a free tier; the other does not. Paid plans start at Free for Cassandra and $59/month for Knack.

Does Cassandra or Knack run on more platforms?

Cassandra runs on Linux, macOS, Windows, Docker, Kubernetes. Knack runs on Web.

Can I use Cassandra for free?

Yes. Cassandra has a free tier, so you can try it without paying. Knack starts at $59/month.

What is Cassandra best used for?

Cassandra is most often used for real-time applications, content management, user profiles, mobile backends. Of those, real-time applications and content management are not what Knack is typically brought in for.

What can Cassandra do that Knack cannot?

Cassandra covers Linear Scalability, Fault Tolerance, Multi-datacenter Replication, Tunable Consistency. Knack covers Visual database builder, User logins and roles, Page builder, Unlimited users.

Databases · head to head

Cassandra vs Knack

Cassandra

Databases

Manage massive amounts of data with linear scalability

From: Free
Rated: -

Full review Website

Knack

Databases

Hosted no-code database and web app builder priced by stored records and storage, with unlimited user accounts on every plan.

From: $59/month
Rated: -

Full review Website

The short version

Only Cassandra has a free tier, so it costs nothing to try first.
Each has a real cost: Cassandra no support for joins across tables; Knack plans are capped by stored records, so an application that logs events or keeps history rather than current state climbs tiers on data volume alone, and archiving old records becomes a permanent maintenance chore rather than a one-off.
They diverge on capability: Cassandra covers Linear Scalability, Knack covers Visual database builder.
Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Cassandra and Knack actually diverge.

Attributes where Cassandra and Knack differ
Attribute	Cassandra	Knack
Starting price	Free	$59/month
Pricing model	Unknown	subscription
Free tier	Yes	No
Platforms	Linux, macOS, Windows, Docker, Kubernetes	Web
Founded	2008	Unknown

Identical on both: user rating (Not yet rated), category (Databases).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cassandra

Linear Scalability
Fault Tolerance
Multi-datacenter Replication
Tunable Consistency
CQL Query Language
Distributed Architecture
No Single Point of Failure
DataStax

Only in Knack

Visual database builder
User logins and roles
Page builder
Unlimited users
E-commerce
Automation flows
Scheduled tasks
REST API and webhooks

What people use each for

The jobs each tool is most often brought in to do.

Cassandra

Real-time applicationsnot Knack
Content managementnot Knack
User profilesnot Knack
Mobile backendsnot Knack
Cachingnot Knack

Knack

A member or client portal where thousands of external people need their own login and see only their own recordsnot Cassandra
Replacing a shared spreadsheet used by a team that has outgrown it but cannot justify a developer to build a bespoke internal toolnot Cassandra
Inventory, asset or case tracking for a small operations team that needs roles, forms and a record of who changed whatnot Cassandra
A registration or booking application for an association, school or non-profit where the user count is large and the record count stays modestnot Cassandra

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cassandra

No support for joins across tables
No ACID transactions across multiple rows
Data model must be designed around query patterns upfront, making schema evolution difficult
Partition key misconfigurations can cause uneven data distribution and hotspots that degrade performance

Knack

Plans are capped by stored records, so an application that logs events or keeps history rather than current state climbs tiers on data volume alone, and archiving old records becomes a permanent maintenance chore rather than a one-off.
API access is capped per day, at 1,000 calls on the entry plan and 10,000 at the Corporate tier, so a scheduled sync or a busy automation can exhaust the day's quota before the working day ends and integrations then fail silently.
The application itself cannot be exported or self-hosted; records can be downloaded but the pages, roles, flows and business logic exist only inside Knack, so outgrowing the platform means rebuilding the app rather than moving it.
Customisation beyond the builder is limited to injected CSS and JavaScript that Knack's support does not cover, so any non-standard interface behaviour becomes yours to maintain against a DOM the vendor can change without warning.
Compliance capabilities that regulated buyers assume are baseline, HIPAA and GovCloud options, advanced SSO, IP restrictions and private environments, are gated to the Corporate and Enterprise tiers, so a small regulated pilot cannot legitimately start on an entry plan.

Pricing, plan by plan

Cassandra

Free

No published plan breakdown. See the Cassandra review.

Knack

$59/month

Starter$59/month
- 20,000 database records
- Unlimited users, tables, fields
- 25 AI credits
Pro$130/month
- 50,000 database records
- Remove Knack branding
- E-commerce payments
Corporate$300/month
- 125,000-2.5M database records
- App restore functionality
- Advanced SSO
Enterprise$null/month
- Dedicated account manager
- HIPAA/GovCloud-based options
- Custom pricing

Which should you pick?

Choose Cassandra if

You need linear scalability.
You want to start without paying.
You work on Linux, macOS, Windows, Docker, Kubernetes.
You also want fault tolerance.

Cassandra review

Choose Knack if

You need visual database builder.
You also want user logins and roles.

Knack review

Questions people ask

Is Cassandra or Knack better?: Neither clearly leads. Cassandra starts at Free and Knack at $59/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cassandra or Knack?: Cassandra has a free tier; the other does not. Paid plans start at Free for Cassandra and $59/month for Knack.
Does Cassandra or Knack run on more platforms?: Cassandra runs on Linux, macOS, Windows, Docker, Kubernetes. Knack runs on Web.
Can I use Cassandra for free?: Yes. Cassandra has a free tier, so you can try it without paying. Knack starts at $59/month.
What is Cassandra best used for?: Cassandra is most often used for real-time applications, content management, user profiles, mobile backends. Of those, real-time applications and content management are not what Knack is typically brought in for.
What can Cassandra do that Knack cannot?: Cassandra covers Linear Scalability, Fault Tolerance, Multi-datacenter Replication, Tunable Consistency. Knack covers Visual database builder, User logins and roles, Page builder, Unlimited users.

Answered from the vendors’ own pages

Cassandra: Does Cassandra support joins between tables?

No. Cassandra does not support joins or foreign keys. The data model requires denormalization, meaning data must be duplicated across tables to support different query patterns.

Source

Knack: Is Knack charged per user?

No. User accounts are unlimited on all plans. Plans are bounded by stored record count, file storage, API calls per day and automation transactions.

Cassandra: Does Cassandra offer ACID transactions?

No. Cassandra provides only row-level atomicity and isolation, not full ACID transactions across multiple rows or tables. It uses lightweight transactions via Paxos for per-row compare-and-set operations.

Source

Knack: What happens when I exceed the record limit?

You move to a higher tier or reduce stored records. Because the limit is on data rather than people, apps that accumulate history hit it while apps that track a fixed set of entities generally do not.

Cassandra: What programming languages can connect to Cassandra?

Cassandra supports official drivers for multiple languages including Python, Java, Node.js, and Go, allowing applications to communicate via the native Cassandra protocol.

Source

Knack: Can I export my application or self-host it?

You can export record data. The application itself, its pages, roles, permissions and flows, is not exportable and cannot be self-hosted, so leaving means rebuilding elsewhere.

Cassandra: Can I deploy Cassandra in the cloud?

Yes. Cassandra can run on any cloud platform (AWS, Google Cloud, Azure) via Docker, virtual machines, or managed services like DataStax Astra DB, which provides a fully managed DBaaS option.

Source

Knack: Is it suitable for public-facing portals?

That is its strongest case, because logins are unlimited and role-based permissions are built in. The constraint is record volume and API throughput, not audience size.

Cassandra: Does Cassandra have a free option?

The open source Apache Cassandra is free. DataStax also offers Astra DB with a free tier providing up to 25GB storage and 25 million read/write operations per month.

Source

Knack: Can I use it for regulated data?

HIPAA-aligned and government cloud options exist but only on the Enterprise tier, along with private server environments. Lower tiers should not be used for regulated workloads.

Cassandra vs Knack

Cassandra

Knack

The short version

Where they differ

What each one covers

Only in Cassandra

Only in Knack

What people use each for

Cassandra

Knack

Where each one falls short

Cassandra

Knack

Pricing, plan by plan

Cassandra

Knack

Which should you pick?

Choose Cassandra if

Choose Knack if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Cassandra

More on Knack

Keep looking

Other head to heads