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ERP · head to head

IQMS vs OpenBOM

IQMS logo

IQMS

ERP

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

From
$1200/month
Rated
-
Full reviewWebsite
OpenBOM logo

OpenBOM

Manufacturing

Cloud bill of materials and part catalogue management priced per seat, with free read-only users

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only OpenBOM has a free tier, so it costs nothing to try first.
  • 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.; OpenBOM pricing has three axes, editing seats plus data record count plus per-seat CAD add-ins at $25 to $45 each, so the real annual cost is well above the advertised per-seat figure.
  • They diverge on capability: IQMS covers Single database ERP and MES, OpenBOM covers Multi-level BOMs.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which IQMS and OpenBOM actually diverge.

Attributes where IQMS and OpenBOM differ
AttributeIQMSOpenBOM
Starting price$1200/monthFree
Pricing modelsubscriptionPer user per month
Free tierNoYes
PlatformsCloud, On-premise, WebWeb, Windows, macOS, API
CategoryERPManufacturing
Founded1994Unknown

Identical on both: 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 IQMS

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

Only in OpenBOM

  • Multi-level BOMs
  • Part catalogue
  • CAD add-ins
  • Change management
  • Free read-only users
  • REST API

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 OpenBOM
  • A repetitive discrete manufacturer running many short jobs where scheduling depends on knowing real machine availabilitynot OpenBOM
  • An automotive component supplier that must meet EDI release schedules and hold traceability to satisfy a customer auditnot OpenBOM
  • A plant currently reconciling an ERP against a separate MES and finding the two never agreenot OpenBOM

OpenBOM

  • A hardware startup replacing a shared BOM spreadsheet before its first contract manufacturing runnot IQMS
  • A contract manufacturer sharing structured BOMs with customers who should see but not edit themnot IQMS
  • An electronics team pulling BOMs straight out of Altium and mechanical CAD instead of retyping themnot IQMS
  • A small manufacturer that needs part numbering and revision discipline but cannot fund a PLM projectnot 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.

OpenBOM

  • Pricing has three axes, editing seats plus data record count plus per-seat CAD add-ins at $25 to $45 each, so the real annual cost is well above the advertised per-seat figure.
  • Paying yearly nearly halves the seat price, from $55 to $30 and $165 to $90, so monthly billing carries an unusually heavy penalty for teams that want flexibility.
  • Change management, revision control and CAD file management are absent from the entry Team plan, so the cheapest tier is a catalogue rather than a working PLM.
  • It lacks the approval workflows, effectivity dating and audit depth that regulated medical and aerospace suppliers need, so companies pursuing ISO 13485 or AS9100 typically migrate away.
  • Record count is metered separately and a large imported part library can push a small team into a higher data tier without adding a single user.

Pricing, plan by plan

IQMS

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

OpenBOM

Free
  • FreeFree
    • Up to 2,000 data records
    • Basic BOM and catalogue management
    • Non-commercial and educational use
  • Professional Team$55/month
    • $30 per seat per month billed yearly
    • BOM management, part catalogue, inventory
    • RFQ and purchase orders
  • Company$165/month
    • $90 per seat per month billed yearly
    • Everything in Team
    • CAD file management and revision control
  • Enterprise$undefined/year
    • Single sign-on
    • Custom integrations
    • Private or custom hosting

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 OpenBOM if

  • You need multi-level boms.
  • You want to start without paying.
  • You work on Web, Windows, macOS, API.
  • You also want part catalogue.
OpenBOM review

Questions people ask

Is IQMS or OpenBOM better?
Neither clearly leads. IQMS starts at $1200/month and OpenBOM at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, IQMS or OpenBOM?
OpenBOM has a free tier; the other does not. Paid plans start at $1200/month for IQMS and Free for OpenBOM.
Does IQMS or OpenBOM run on more platforms?
IQMS runs on Cloud, On-premise, Web. OpenBOM runs on Web, Windows, macOS, API.
Can I use OpenBOM for free?
Yes. OpenBOM has a free tier, so you can try it without paying. IQMS starts at $1200/month.
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 OpenBOM is typically brought in for.
What can IQMS do that OpenBOM cannot?
IQMS covers Single database ERP and MES, Real time machine monitoring, Production scheduling, Quality management. OpenBOM covers Multi-level BOMs, Part catalogue, CAD add-ins, Change management.

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.

OpenBOM: Is OpenBOM free?

There is a genuine free tier limited to 2,000 data records and aimed at non-commercial and educational use. Commercial teams start at $30 per seat per month billed yearly.

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.

OpenBOM: Do I pay for people who only look at BOMs?

No. Read-only users are unlimited and free on every paid plan, which is the main reason the total cost undercuts seat-for-seat PLM tools.

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.

OpenBOM: Are the CAD add-ins included?

No. They are $25 per seat per month billed yearly, $45 monthly, and require an active Team or Company subscription.

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.

OpenBOM: Can OpenBOM replace a full PLM?

For a startup, usually yes. For regulated manufacturing needing controlled workflows and full audit trails, no.

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