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ERP · head to head

Epicor vs iDempiere

Epicor logo

Epicor

ERP

A portfolio of separately acquired ERP products, not one system

From
$750/month
Rated
-
Full reviewWebsite
iDempiere logo

iDempiere

ERP

Community-governed open source ERP, CRM and supply chain built on Java, OSGi and PostgreSQL

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only iDempiere has a free tier, so it costs nothing to try first.
  • Each has a real cost: Epicor epicor is a portfolio of separately acquired products rather than one system, so reviews, references and analyst coverage about Epicor as a brand can be misleading about the specific product you are being sold.; iDempiere there is no vendor, so there is no support contract, no service level agreement and nobody to escalate to; you either build the skills internally or you depend entirely on a local partner whose quality you must judge yourself.
  • They diverge on capability: Epicor covers Kinetic, iDempiere covers Application dictionary.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Epicor and iDempiere actually diverge.

Attributes where Epicor and iDempiere differ
AttributeEpicoriDempiere
Starting price$750/monthFree
Pricing modelsubscriptionOpen source, no licence fee
Free tierNoYes
PlatformsCloud, On-premise, HybridWeb, Self-hosted, Docker, Linux, Windows
Founded1972Unknown

Identical on both: 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 Epicor

  • Kinetic
  • Prophet 21
  • Eclipse
  • BisTrack
  • Cloud deployment
  • Extensibility tooling
  • Manufacturing execution
  • Industry compliance

Only in iDempiere

  • Application dictionary
  • OSGi plug-in architecture
  • Multi-organisation accounting
  • Materials management
  • Manufacturing
  • Workflow engine
  • Report and print engine
  • No paid edition

What people use each for

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

Epicor

  • A discrete manufacturer moving off spreadsheets and an accounting package onto a system that models routings and job costsnot iDempiere
  • A wholesale distributor whose pricing, rebate and purchasing rules exceed what a general ERP handles without customisationnot iDempiere
  • An electrical or plumbing distributor needing counter sales and trade-specific workflow out of the boxnot iDempiere
  • A building materials dealer needing yard operations, delivery scheduling and configured product ordering in one systemnot iDempiere

iDempiere

  • A distributor wants multi-organisation, multi-currency accounting and warehouse costing without a per-user ERP licence that scales with headcount.not Epicor
  • An organisation that has been caught by an open core vendor moving features into a paid tier wants an ERP with no company that can make that decision.not Epicor
  • A team needs heavy customisation of screens, fields and approval workflows that must survive version upgrades, which the application dictionary makes possible without forking.not Epicor
  • A public sector or university body in Latin America or Indonesia needs a locally supportable ERP where the source and the implementation skills are both available in-country.not Epicor

Where each one falls short

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

Epicor

  • Epicor is a portfolio of separately acquired products rather than one system, so reviews, references and analyst coverage about Epicor as a brand can be misleading about the specific product you are being sold.
  • The products are highly customisable and are routinely customised, and heavily customised installations become expensive to upgrade, which is why long-standing customers frequently run versions several releases behind current.
  • Cloud delivery is single-tenant hosting rather than multi-tenant SaaS, so you still own an upgrade decision and the regression testing that comes with it, and buyers who expected the SaaS model of no upgrades are surprised.
  • Sales and delivery run through a mix of direct staff and partners depending on product and region, so accountability for a failed implementation can be genuinely ambiguous unless it is fixed in the contract before signature.
  • The strongest coverage is in North American manufacturing and distribution, so an international group needing statutory compliance and local support across many countries has to test that coverage carefully rather than assume it.

iDempiere

  • There is no vendor, so there is no support contract, no service level agreement and nobody to escalate to; you either build the skills internally or you depend entirely on a local partner whose quality you must judge yourself.
  • It demands real Java, OSGi and PostgreSQL administration, so the running cost is a systems engineer rather than a subscription, and that engineer is harder to hire than a PHP developer.
  • The ZK-based interface is dense and dated, with a data-entry feel inherited from Compiere that staff used to modern software find hostile, which drives up training cost.
  • Localisation depends on community contribution, so tax, payroll and statutory reporting for your country may be absent, out of date or maintained by one person, and you may end up funding it yourself.
  • The documentation is a community wiki with gaps and stale pages, and much of the practical knowledge sits in forum threads and partner heads rather than in anything you can hand to a new administrator.

Pricing, plan by plan

Epicor

$750/month
  • Starter$750/month
    • Core ERP
    • Manufacturing
    • Financial management
  • Professional$1500/month
    • Advanced ERP
    • Advanced CRM
    • Analytics

iDempiere

Free
  • iDempiereFree
    • Full ERP, CRM and supply chain source
    • Unlimited users and organisations
    • No enterprise edition and no feature gating
  • Implementation partner$undefined/year
    • Local partners provide installation, configuration, training and support
    • Priced per engagement, not published
    • Realistically the only viable route for a production deployment

Which should you pick?

Choose Epicor if

  • You need kinetic.
  • You work on Cloud, On-premise, Hybrid.
  • You also want prophet 21.
Epicor review

Choose iDempiere if

  • You need application dictionary.
  • You want to start without paying.
  • You work on Web, Self-hosted, Docker, Linux, Windows.
  • You also want osgi plug-in architecture.
iDempiere review

Questions people ask

Is Epicor or iDempiere better?
Neither clearly leads. Epicor starts at $750/month and iDempiere at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Epicor or iDempiere?
iDempiere has a free tier; the other does not. Paid plans start at $750/month for Epicor and Free for iDempiere.
Does Epicor or iDempiere run on more platforms?
Epicor runs on Cloud, On-premise, Hybrid. iDempiere runs on Web, Self-hosted, Docker, Linux, Windows.
Can I use iDempiere for free?
Yes. iDempiere has a free tier, so you can try it without paying. Epicor starts at $750/month.
What is Epicor best used for?
Epicor is most often used for a discrete manufacturer moving off spreadsheets and an accounting package onto a system that models routings and job costs, a wholesale distributor whose pricing, rebate and purchasing rules exceed what a general erp handles without customisation, an electrical or plumbing distributor needing counter sales and trade-specific workflow out of the box, a building materials dealer needing yard operations, delivery scheduling and configured product ordering in one system. Of those, a discrete manufacturer moving off spreadsheets and an accounting package onto a system that models routings and job costs and a wholesale distributor whose pricing, rebate and purchasing rules exceed what a general erp handles without customisation are not what iDempiere is typically brought in for.
What can Epicor do that iDempiere cannot?
Epicor covers Kinetic, Prophet 21, Eclipse, BisTrack. iDempiere covers Application dictionary, OSGi plug-in architecture, Multi-organisation accounting, Materials management.

Answered from the vendors’ own pages

Epicor: Which Epicor product am I actually being sold?

Ask explicitly, by name. Kinetic, Prophet 21, Eclipse and BisTrack are different systems with different roadmaps. Then ask for references on that specific product, in your industry, at your size.

iDempiere: Is iDempiere the same as ADempiere or Compiere?

It shares the lineage. iDempiere forked from ADempiere in 2011 to rebuild the platform on OSGi, and it is the branch that remains actively developed.

Epicor: Is Epicor Kinetic a true SaaS product?

It is delivered as a hosted single-tenant service on Azure. You get vendor-managed infrastructure, but you do not get the multi-tenant model where the vendor upgrades everyone at once and no upgrade project exists.

iDempiere: Is there a paid or enterprise edition?

No. There is no commercial owner and no feature gating. Money is spent on implementation partners and hosting, not on licences.

Epicor: How much should I customise?

Less than you will want to. Every modification is something to retest and potentially rework at each upgrade, and the accumulation of them is the main reason customers get stranded on old versions. Push hard on whether a requirement is genuinely a differentiator before building for it.

iDempiere: What does it actually cost to run?

Nothing in licence fees, and a great deal in skills: expect a partner implementation and ongoing Java and PostgreSQL administration, which for a mid-sized company is comparable to a commercial subscription.

Epicor: Direct or partner implementation?

Both exist. The partner's track record on your product and industry matters more than the vendor's, so ask who will staff the project, request their references, and put named staff into the statement of work.

iDempiere: Which database does it need?

PostgreSQL or Oracle. PostgreSQL is the mainstream community choice and the one most partners deploy.

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