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Cassandra vs Pleo

Cassandra logo

Cassandra

Software

Manage massive amounts of data with linear scalability

From
Free
Rated
-
Full reviewWebsite
Pleo logo

Pleo

Software

Smart company cards for forward-thinking teams

From
£9.5/month
Rated
-
Full reviewWebsite

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; Pleo card delays and transaction limits impact usability, with limited regional acceptance in some areas
  • They diverge on capability: Cassandra covers Linear Scalability, Pleo covers Company cards.

Where they differ

Only the attributes on which Cassandra and Pleo actually diverge.

Attributes where Cassandra and Pleo differ
AttributeCassandraPleo
Starting priceFree£9.5/month
Free tierYesNo
PlatformsLinux, macOS, Windows, Docker, KubernetesiOS, Android, Web
Founded20082015

Identical on both: pricing model (Unknown), user rating (Not yet rated), category (Unknown).

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 Pleo

  • Company cards
  • Receipt capture
  • Expense categorization
  • Spend limits
  • Accounting sync
  • Xero
  • QuickBooks
  • Sage

What people use each for

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

Cassandra

  • Real-time applicationsnot Pleo
  • Content managementnot Pleo
  • User profilesnot Pleo
  • Mobile backendsnot Pleo
  • Cachingnot Pleo

Pleo

  • Employee expensesnot Cassandra
  • Spending autonomynot Cassandra
  • Expense automationnot 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

Pleo

  • Card delays and transaction limits impact usability, with limited regional acceptance in some areas
  • Receipt capture OCR inaccuracies and upload lag/glitches complicate expense categorization
  • Limited expense categories and tags reduce flexibility for complex accounting structures
  • Transaction approval workflows have minimal customization options
  • Lacks in-built forecasting tools and reporting is basic, providing limited insights into trends

Pricing, plan by plan

Cassandra

Free

No published plan breakdown. See the Cassandra review.

Pleo

£9.5/month
  • Starter$9.5/month
    • Company cards
    • Real-time expense tracking
    • Automated reports
  • Essential$39/month
    • Reimbursements
    • Mileage and per diem
    • Vendor cards
  • Advanced$89/month
    • Cashback
    • Budgets
    • Multi-entity management
  • Beyond$179/month
    • Spending insights
    • Sub-wallets
    • Dedicated success manager

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 Pleo if

  • You need company cards.
  • You work on iOS, Android, Web.
  • You also want receipt capture.
Pleo review

Questions people ask

Is Cassandra or Pleo better?
Neither clearly leads. Cassandra starts at Free and Pleo at £9.5/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cassandra or Pleo?
Cassandra has a free tier; the other does not. Paid plans start at Free for Cassandra and £9.5/month for Pleo.
Does Cassandra or Pleo run on more platforms?
Cassandra runs on Linux, macOS, Windows, Docker, Kubernetes. Pleo runs on iOS, Android, Web.
Can I use Cassandra for free?
Yes. Cassandra has a free tier, so you can try it without paying. Pleo starts at £9.5/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 Pleo is typically brought in for.
What can Cassandra do that Pleo cannot?
Cassandra covers Linear Scalability, Fault Tolerance, Multi-datacenter Replication, Tunable Consistency. Pleo covers Company cards, Receipt capture, Expense categorization, Spend limits.

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
Pleo: What are Pleo's pricing tiers?

Pleo offers four pricing tiers: Starter (GBP 9.50/month), Essential (GBP 39.00/month), Advanced (GBP 89.00/month), and Beyond (GBP 179.00/month). Annual billing provides equivalent of two free months.

Source
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
Pleo: Does Pleo have a free tier?

No, Pleo does not offer a free tier or permanent free plan. All plans require payment with a free trial available for evaluation.

Source
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
Pleo: What integrations does Pleo support for accounting?

Pleo integrates directly with Xero and QuickBooks, plus Sage 200, Sage 50, Microsoft Dynamics 365 Business Central, Datev, and Visma e-conomic. Zapier integrations are also available.

Source
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
Pleo: What platforms can access Pleo?

Pleo is accessible via iOS and Android mobile apps, and through a web interface. Physical and virtual cards are issued for spending.

Source
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
Pleo: Does Pleo support multiple currencies?

Yes, Pleo supports multi-currency spending and transactions. The platform is particularly strong for European teams with local payment methods.

Source
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