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Databases · head to head

Canary Labs vs Flow Software

Canary Labs logo

Canary Labs

Databases

Industrial process historian with published per-tag pricing and no client licence fees

From
$3000/year
Rated
-
Full reviewWebsite
Flow Software logo

Flow Software

Manufacturing

Manufacturing KPI and OEE calculation engine with published list prices, licensed by measure count

From
$11390/one-time
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Canary Labs pricing steps by tag band rather than actual tags, so a site sitting just above a threshold pays the next band in full; growth from 3,400 to 3,600 tags is a licence purchase, not a rounding error.; Flow Software the 11,390 dollar Starter licence caps at 250 measures and events, which a multi-line plant exhausts quickly once each line contributes a dozen calculations, forcing a jump to the 62,230 dollar tier.
  • They diverge on capability: Canary Labs covers Loss-less compression, Flow Software covers Measure model.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Canary Labs and Flow Software actually diverge.

Attributes where Canary Labs and Flow Software differ
AttributeCanary LabsFlow Software
Starting price$3000/year$11390/one-time
Pricing modelPer tag band per yearOne-time purchase
CategoryDatabasesManufacturing

Identical on both: free tier (No), platforms (Windows, Web), user rating (Not yet rated).

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 Canary Labs

  • Loss-less compression
  • Unlimited clients
  • Store and forward
  • Views service
  • Sparkplug B
  • Axiom
  • ODBC and REST

Only in Flow Software

  • Measure model
  • Historian connectors
  • Manual data entry
  • Event framing
  • Excel and Power BI output
  • Flow dashboards
  • AI Gateway

Both cover

  • Calculation engine

What people use each for

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

Canary Labs

  • A manufacturer that needs a compliant historian but cannot justify a PI System enterprise agreementnot Flow Software
  • A water utility replacing SCADA-embedded logging with a historian that survives the next SCADA replacementnot Flow Software
  • An Ignition site that wants long-term storage and trending without paying per-client for dashboardsnot Flow Software
  • A plant with regulatory data-retention obligations where swinging-door compression would not survive an auditnot Flow Software

Flow Software

  • A brewery replacing a fragile network of OEE spreadsheets with governed calculations from the same historian datanot Canary Labs
  • Reporting specific energy consumption per tonne against an ISO 50001 audit where the calculation method must be documentednot Canary Labs
  • Feeding Power BI plant dashboards from a historian without giving analysts direct tag-level accessnot Canary Labs
  • A site that needs lab results typed in and combined with automated tag data in the same yield calculationnot Canary Labs

Where each one falls short

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

Canary Labs

  • Pricing steps by tag band rather than actual tags, so a site sitting just above a threshold pays the next band in full; growth from 3,400 to 3,600 tags is a licence purchase, not a rounding error.
  • CustomerCare at 18 percent of licence cost is effectively mandatory on perpetual licences because lapsing it removes upgrades, so the perpetual option is not really a one-time cost.
  • The storage format is proprietary; getting data out at volume means the ODBC connector, an additional 2,500 USD one-time or 1,000 USD a year, or writing against the REST API.
  • Canary is a small vendor with a limited partner network outside North America, so support coverage and integrator availability in Europe and Asia are thinner than for AVEVA or Ignition.
  • It is a Windows-only server product with no Linux or container deployment, which complicates placing collectors in modern edge estates.

Flow Software

  • The 11,390 dollar Starter licence caps at 250 measures and events, which a multi-line plant exhausts quickly once each line contributes a dozen calculations, forcing a jump to the 62,230 dollar tier.
  • The Unlimited licence requires every engine on a single server or VM, so any multi-server or multi-site topology goes straight to Distributed at roughly double the price with no intermediate option.
  • Maintenance renews at about fifteen percent of the installed base annually, so a large perpetual estate carries a five-figure recurring cost that the headline perpetual price hides.
  • It is a Windows product with a Microsoft data stack, so Linux or container-native deployment strategies do not apply and the server has to be managed on the plant Windows estate.
  • It calculates and reports but does not collect from equipment itself, so an existing historian or OPC layer is a prerequisite and Flow adds cost on top of that rather than replacing it.

Pricing, plan by plan

Canary Labs

$3000/year
  • Subscription, 3,500 tags$3000/year
    • Unlimited Axiom clients
    • Unlimited Excel clients
    • Support and upgrades included
  • Perpetual, 3,500 tags$8730/one-time
    • 7,400 USD licence plus 1,330 USD first-year CustomerCare
    • CustomerCare renews at 18 percent of licence cost per year
    • Unlimited clients
  • Private cloud, 3,500 tags$12320/year
    • Hosted by Canary
    • 1,500 USD one-time setup fee per system
    • Scales to around 58,684 USD per year at 60,000 tags
  • Enterprise unlimited$undefined/year
    • Unlimited tags
    • Negotiated licensing terms
    • Quoted pricing

Flow Software

$11390/one-time
  • Starter$11390/one-time
    • 250 KPI measures and events
    • Single server deployment
    • First year of software maintenance included
  • Unlimited$62230/one-time
    • Unlimited KPI measures and events
    • All engines must run on one server or dedicated VM
    • First year of maintenance included
  • Distributed$128450/one-time
    • Unlimited measures with engines distributed across multiple servers
    • Required for multi-server and multi-site deployments
    • Available as an annual subscription at 34,250 USD instead

Which should you pick?

Choose Canary Labs if

  • You need loss-less compression.
  • You work on Windows, Web.
  • You also want unlimited clients.
Canary Labs review

Choose Flow Software if

  • You need measure model.
  • You work on Windows, Web.
  • You also want historian connectors.
Flow Software review

Questions people ask

Is Canary Labs or Flow Software better?
Neither clearly leads. Canary Labs starts at $3000/year and Flow Software at $11390/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Canary Labs or Flow Software?
Canary Labs starts at $3000/year and Flow Software at $11390/one-time.
Does Canary Labs or Flow Software run on more platforms?
Both run on Windows, Web, so platform support will not decide this one for you.
What is Canary Labs best used for?
Canary Labs is most often used for a manufacturer that needs a compliant historian but cannot justify a pi system enterprise agreement, a water utility replacing scada-embedded logging with a historian that survives the next scada replacement, an ignition site that wants long-term storage and trending without paying per-client for dashboards, a plant with regulatory data-retention obligations where swinging-door compression would not survive an audit. Of those, a manufacturer that needs a compliant historian but cannot justify a pi system enterprise agreement and a water utility replacing scada-embedded logging with a historian that survives the next scada replacement are not what Flow Software is typically brought in for.
What can Canary Labs do that Flow Software cannot?
Canary Labs covers Loss-less compression, Unlimited clients, Store and forward, Views service. Flow Software covers Measure model, Historian connectors, Manual data entry, Event framing. Both handle Calculation engine.

Answered from the vendors’ own pages

Canary Labs: What does Canary cost?

8,730 USD for a 3,500 tag perpetual system including first-year CustomerCare, or 3,000 USD a year on subscription.

Flow Software: Does Flow publish real prices?

Yes. Starter is 11,390 USD perpetual for 250 measures, Unlimited is 62,230 USD perpetual or 16,595 USD a year, and Distributed is 128,450 USD perpetual or 34,250 USD a year.

Canary Labs: Are client licences extra?

No. Unlimited Axiom browser clients and unlimited Excel clients are included on every tier.

Flow Software: Is perpetual licensing still offered?

Yes, at every tier, with the first year of maintenance included and renewal at roughly fifteen percent per year. Subscription is available on Unlimited and Distributed only.

Canary Labs: Is perpetual cheaper than subscription?

Canary states perpetual pays off after roughly three years, and after that you still pay 18 percent CustomerCare annually.

Flow Software: Do I need a historian as well?

Effectively yes. Flow reads from historians, databases and OPC sources; it is a calculation layer, not a data collector.

Canary Labs: Does it use lossy compression?

No. Canary stores every collected value rather than approximating the trend, which matters for regulated data retention.

Flow Software: What counts as a measure?

Each configured KPI or event definition. A single line typically consumes ten to thirty, which is what makes the 250 Starter cap tighter than it looks.

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