Flow Softwarevs
AVEVA PI System
AVEVA PI System: If you need the historian itself and the asset framework rather than a calculation layer above one
Flow Software
Manufacturing KPI and OEE calculation engine with published list prices, licensed by measure count
As of 1 September 2026, Flow Software starts at $11390/one-time. A South African-built calculation and reporting layer that sits between plant historians and business systems. Softwr lists it under Manufacturing. Flow Software is available on Windows, Web.
Overview
What Flow Software does
Flow Software is an operational ETL and calculation product. It reads from historians, PLCs, SQL databases, spreadsheets and manual entry forms, applies time-aligned aggregation and calculation rules, and produces KPIs such as OEE, specific energy consumption, yield and production cost against a plant asset model. Output goes to its own dashboards, to Excel, to Power BI or back into ERP. It is deliberately not a historian and not an HMI; it is the layer that turns raw tags into numbers a plant manager reports. The unusual thing about Flow is commercial transparency. The vendor publishes list prices: a Starter perpetual licence at 11,390 dollars limited to 250 KPI measures and events, an Unlimited perpetual at 62,230 dollars or 16,595 dollars a year, and a Distributed tier at 128,450 dollars perpetual or 34,250 dollars a year for deployments spanning multiple servers. An AI Gateway add-on is 7,500 dollars perpetual per instance. Perpetual licences include the first year of maintenance and renew at roughly fifteen percent of the installed base per year. In a sector where every competitor answers pricing questions with a discovery call, being able to size a budget from a web page is itself a reason shortlists include it. Buyers are process and discrete manufacturers with an existing historian who need governed KPI calculation without building it in spreadsheets or commissioning a bespoke MES. The trade-off is the measure limit and the server topology rule. Starter’s 250 measures is reached faster than teams expect once each line contributes a dozen calculations, and the Unlimited licence requires all engines to run on a single server or dedicated VM, so a multi-site or multi-server design jumps straight to Distributed, roughly double the price.
What people use it for
- A brewery replacing a fragile network of OEE spreadsheets with governed calculations from the same historian data
- Reporting specific energy consumption per tonne against an ISO 50001 audit where the calculation method must be documented
- Feeding Power BI plant dashboards from a historian without giving analysts direct tag-level access
- A site that needs lab results typed in and combined with automated tag data in the same yield calculation
Related searches
The honest half
Where it falls short
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about 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.
Cross-shopped
What people choose instead of Flow Software
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.
- Flow SoftwarevsSight Machine
Sight Machine: If you want the data model, calculations and analytics delivered as a managed cloud service instead of a licensed server
- Flow SoftwarevsTulip
Tulip: If the gap is operator data capture on the line rather than calculation over existing automated data
Pricing
What Flow Software costs
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Starter
$11,390 /one-time
- 250 KPI measures and events
- Single server deployment
- First year of software maintenance included
- Renewal at approximately 15 percent of installed base per year
- No annual subscription option at this tier
Unlimited
$62,230 /one-time
- Unlimited KPI measures and events
- All engines must run on one server or dedicated VM
- First year of maintenance included
- Available as an annual subscription at 16,595 USD instead
Distributed
$128,450 /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
- AI Gateway add-on at 7,500 USD perpetual per instance
Capabilities
Features
Calculation engine
Roll-up, moving window and future-dated predictive calculations over time-aligned data
Measure model
KPIs defined against an asset hierarchy rather than against raw tag names
Historian connectors
Collection from PI, Wonderware, Canary, Ignition, OPC and SQL sources
Manual data entry
Web forms for lab results and counts that no automation system captures
Event framing
Calculations bounded by production runs, shifts, batches or downtime events
Excel and Power BI output
Published measures consumed directly by reporting tools users already have
Flow dashboards
Configurable web displays for the calculated measures and events
AI Gateway
Add-on instance exposing the modelled measures to AI and language model tooling
Answered, with sources
Questions people ask
Each answer names the page it came from, so you can check it rather than take our word for it.
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.
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.
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.
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.
Keep looking
Where to go from Flow Software
- Flow Software alternativesEvery product people weigh against it
- Flow Software pricingPlans, floors and what the tiers exclude
- Flow Software badgesWhich rules it meets, and the figure behind each
- All Manufacturing softwareThe full category
- Best Manufacturing softwareThe shortlist, and how it was cut
Best Manufacturing software for
Compare Flow Software with
- Sight Machine
- Tulip
- TrakSYS
- Guidewheel
- Prodsmart
- Rockwell FactoryTalk
- Authentise
- Seeq
- Ignition
- AVEVA System Platform
- Oqton
- ProShop ERP
- Paperless Parts
- Petasense
- Poseidon Systems
- PROGNOST Systems
- Propel
- Prodsmart
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Softwr does not host reviews and shows no star rating for Flow Software, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
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