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ERP · head to head

IQMS vs Unit4

IQMS logo

IQMS

ERP

Single database manufacturing ERP and MES, now sold by Dassault as DELMIAworks

From
$1200/month
Rated
-
Full reviewWebsite
Unit4 logo

Unit4

ERP

ERP for people-based organisations where the cost centre structure keeps changing

From
$800/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: IQMS dassault Systemes acquired the product in 2018 and renamed it, which changed the sales channel, the support relationship and the roadmap owner, so a buyer needs explicit commitments on release cadence rather than a history of independence that no longer applies.; Unit4 manufacturing, warehouse management and supply chain planning are not the point of this product, so a business with significant inventory will find capability gaps that no amount of configuration closes.
  • They diverge on capability: IQMS covers Single database ERP and MES, Unit4 covers Flexible organisational model.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which IQMS and Unit4 actually diverge.

Attributes where IQMS and Unit4 differ
AttributeIQMSUnit4
Starting price$1200/month$800/month
PlatformsCloud, On-premise, WebCloud, Web, Mobile
Founded19941987

Identical on both: pricing model (subscription), free tier (No), user rating (Not yet rated), category (ERP).

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 IQMS

  • Single database ERP and MES
  • Real time machine monitoring
  • Production scheduling
  • Quality management
  • Preventive maintenance
  • Inventory and lot traceability
  • EDI
  • Financials

Only in Unit4

  • Flexible organisational model
  • Project and time accounting
  • Financial management
  • Procurement
  • Human resources
  • Planning and forecasting
  • Reporting
  • Grant and fund accounting

What people use each for

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

IQMS

  • An injection moulding or plastics processor that needs cycle level machine data to cost jobs accuratelynot Unit4
  • A repetitive discrete manufacturer running many short jobs where scheduling depends on knowing real machine availabilitynot Unit4
  • An automotive component supplier that must meet EDI release schedules and hold traceability to satisfy a customer auditnot Unit4
  • A plant currently reconciling an ERP against a separate MES and finding the two never agreenot Unit4

Unit4

  • A university or public body whose funding structure and reporting hierarchy change more often than its accounting system can keep up withnot IQMS
  • A professional services firm that needs time, project profitability and financials in one ledger rather than in three systemsnot IQMS
  • A nonprofit or NGO accounting for restricted funds and reporting to donors on how each was spentnot IQMS
  • An organisation going through a merger or restructure that needs comparative reporting across both the old and new structuresnot IQMS

Where each one falls short

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

IQMS

  • Dassault Systemes acquired the product in 2018 and renamed it, which changed the sales channel, the support relationship and the roadmap owner, so a buyer needs explicit commitments on release cadence rather than a history of independence that no longer applies.
  • This is a discrete and repetitive manufacturing system, not a process one, so a batch producer needing formulation, potency, catch weight or co-product handling will hit capability gaps that configuration cannot close.
  • The product has an on premise heritage with an underlying commercial database, so a deployment carries database licensing and administration skills as costs that sit outside the ERP quote.
  • Its depth is on the shop floor rather than in the office, so organisations with complex multi-entity consolidation, international statutory reporting or sophisticated financial planning needs generally find the finance side thinner than the manufacturing side.
  • The knowledge base is split across two product names and two eras, so searching for help returns a mixture of IQMS-era community material and current DELMIAworks documentation, and it is not always obvious which applies to your version.

Unit4

  • Manufacturing, warehouse management and supply chain planning are not the point of this product, so a business with significant inventory will find capability gaps that no amount of configuration closes.
  • Payroll is generally handled by a separate product or a regional third party rather than being included, so multi-country organisations end up managing several payroll vendors alongside the ERP.
  • Moving from an established on premise Agresso installation to the current cloud product is closer to a re-implementation than an upgrade, with data migration, process redesign and retraining to pay for on a system that already worked.
  • The consulting and partner ecosystem is considerably smaller than for SAP, Oracle or Microsoft, so specialist skills are harder to hire, cost more, and are concentrated in a small number of firms with limited availability.
  • The flexibility that makes reorganisation cheap also makes it easy to build a model nobody understands, and an organisation that has reconfigured its hierarchy repeatedly without documentation ends up unable to explain its own reporting.

Pricing, plan by plan

IQMS

$1200/month
  • Standard$1200/month
    • Quality management
    • MES
    • Basic analytics
  • Premium$2500/month
    • Advanced analytics
    • AI capabilities
    • Priority support

Unit4

$800/month
  • Professional Services$800/month
    • Project accounting
    • Resource management
    • Time tracking
  • Enterprise$2000/month
    • Advanced features
    • Multi-entity
    • Analytics

Which should you pick?

Choose IQMS if

  • You need single database erp and mes.
  • You work on Cloud, On-premise, Web.
  • You also want real time machine monitoring.
IQMS review

Choose Unit4 if

  • You need flexible organisational model.
  • You work on Cloud, Web, Mobile.
  • You also want project and time accounting.
Unit4 review

Questions people ask

Is IQMS or Unit4 better?
Neither clearly leads. IQMS starts at $1200/month and Unit4 at $800/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, IQMS or Unit4?
IQMS starts at $1200/month and Unit4 at $800/month.
Does IQMS or Unit4 run on more platforms?
IQMS runs on Cloud, On-premise, Web. Unit4 runs on Cloud, Web, Mobile.
What is IQMS best used for?
IQMS is most often used for an injection moulding or plastics processor that needs cycle level machine data to cost jobs accurately, a repetitive discrete manufacturer running many short jobs where scheduling depends on knowing real machine availability, an automotive component supplier that must meet edi release schedules and hold traceability to satisfy a customer audit, a plant currently reconciling an erp against a separate mes and finding the two never agree. Of those, an injection moulding or plastics processor that needs cycle level machine data to cost jobs accurately and a repetitive discrete manufacturer running many short jobs where scheduling depends on knowing real machine availability are not what Unit4 is typically brought in for.
What can IQMS do that Unit4 cannot?
IQMS covers Single database ERP and MES, Real time machine monitoring, Production scheduling, Quality management. Unit4 covers Flexible organisational model, Project and time accounting, Financial management, Procurement.

Answered from the vendors’ own pages

IQMS: Is IQMS the same as DELMIAworks?

Yes. Dassault Systemes acquired IQMS in 2018 and markets the product as DELMIAworks. The underlying application, EnterpriseIQ, is the same lineage, but contracts, support and the sales channel are now Dassault's.

Unit4: Is Unit4 ERP the same thing as Agresso?

Yes, in lineage. Agresso is the earlier name for the same product line and long-standing customers still use it. Current marketing uses Unit4 ERP, and the cloud product is a substantially different deployment from the on premise Agresso installations still in service.

IQMS: Why choose this over an ERP plus a separate MES?

Because the interface between them is the usual failure point. One database means production status, scrap and costing agree by construction. The cost of that is a narrower product that suits a specific kind of manufacturer rather than any manufacturer.

Unit4: Can it run a manufacturing business?

Not well. This product is built for organisations whose cost base is people and projects. If your planning problem is materials and production capacity, look at a manufacturing ERP instead.

IQMS: Does it suit process or batch manufacturing?

No. It was built around discrete and repetitive production. Formulation, potency adjustment and co-product handling are the domain of process ERP and you should look at a specialist for that.

Unit4: What actually justifies the price against a mainstream ERP?

The cost of change. If your structure is stable, the flexibility is worth little and a mainstream product is cheaper. If you reorganise regularly and each reorganisation currently means a consultancy engagement, that recurring cost is where the business case sits.

IQMS: What should I check before buying under the current ownership?

Ask for the published release history since the acquisition, the support escalation path, who implements it in your region and whether they are Dassault staff or a partner, and what integration with the rest of the Dassault portfolio is assumed in the roadmap.

Unit4: Is it sold direct or through partners?

Both. Unit4 sells and implements direct in its main markets and also works with partners. Ask which model applies to your region and country, because it determines who is accountable when the implementation slips.

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