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ERP · head to head

Axelor vs OutSystems

Axelor logo

Axelor

ERP

French open source ERP and CRM with a low-code studio for changing the data model without forking

From
Free
Rated
-
Full reviewWebsite
OutSystems logo

OutSystems

No-Code

Enterprise low-code platform priced by application complexity units, not just users

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Axelor has a free tier, so it costs nothing to try first.
  • Each has a real cost: Axelor pro requires at least ten users and Enterprise at least twenty, so a six-person company either stays on unsupported Community or pays for seats it does not have.; OutSystems application Objects grow with every screen, table and API an app gains, so a successful app that keeps adding features can push the account into AO overage charges that were not modelled at initial budget time.
  • They diverge on capability: Axelor covers Axelor Studio, OutSystems covers Visual application modelling.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Axelor and OutSystems actually diverge.

Attributes where Axelor and OutSystems differ
AttributeAxelorOutSystems
Starting priceFreeOn request
Pricing modelPer user per monthApplication Object consumption plus internal and external user packs
Free tierYesNo
PlatformsWeb, Linux, Docker, iOS, AndroidWeb, iOS, Android
CategoryERPNo-Code

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 Axelor

  • Axelor Studio
  • BPM engine
  • CRM and sales
  • Manufacturing
  • Accounting
  • E-invoicing
  • Stock and logistics
  • REST API

Only in OutSystems

  • Visual application modelling
  • Generated deployable code
  • One-click deployment
  • AI-assisted development
  • Application Object governance
  • Prebuilt integrations

What people use each for

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

Axelor

  • A European SME that wants ERP on its own servers for data sovereignty rather than in a US cloudnot OutSystems
  • A company whose processes do not fit a standard ERP and that wants to model them in BPMN instead of paying for custom codenot OutSystems
  • A francophone business needing a French chart of accounts and local statutory reporting out of the boxnot OutSystems
  • A team validating an open source ERP on the free Community edition with the option to move the same database onto a commercial licence laternot OutSystems

OutSystems

  • An enterprise replacing custom .NET or Java application development with a governed low-code platform at scalenot Axelor
  • A company building customer-facing portals where the external-user pricing tier (packs of 10,000) is materially cheaper than licensing customers as internal usersnot Axelor
  • An IT department that wants generated, inspectable code rather than a proprietary black-box runtimenot Axelor
  • An organisation with a large existing application portfolio needing centralised governance across many apps built by different teamsnot Axelor

Where each one falls short

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

Axelor

  • Pro requires at least ten users and Enterprise at least twenty, so a six-person company either stays on unsupported Community or pays for seats it does not have.
  • Documentation, community answers and partner material are substantially richer in French than English, which slows adoption for anglophone teams and makes hiring implementers outside Europe difficult.
  • The AGPL licence on Community obliges you to publish modifications if you offer the software as a network service, which is a genuine blocker for anyone planning to resell a hosted version.
  • The implementation partner network is concentrated in France and neighbouring markets, so buyers elsewhere have few local firms to tender against and limited support timezone coverage.
  • It is a smaller ecosystem than Odoo or ERPNext, so there is no large third-party app marketplace, and functionality the suite lacks has to be built rather than bought.

OutSystems

  • Application Objects grow with every screen, table and API an app gains, so a successful app that keeps adding features can push the account into AO overage charges that were not modelled at initial budget time.
  • Internal users are sold in packs of 100 and external users in packs of 10,000, so a company just over a pack boundary in either category pays for a full additional pack rather than a handful of extra seats.
  • Entry-level ODC pricing starts around 36,300 US dollars a year before any AO overage or extra user packs, which puts it out of reach for smaller teams evaluating low-code options.
  • Cloud infrastructure and hosting costs are frequently separate from the platform licence, so the all-in bill is higher than the headline subscription figure suggests.
  • Migrating a large application portfolio off OutSystems once built is difficult, since the generated code and platform-specific patterns are not designed for a clean export to standard frameworks.

Pricing, plan by plan

Axelor

Free
  • CommunityFree
    • AGPL licensed, self-hosted
    • Essential ERP and CRM modules
    • Forum and documentation support only
  • Pro$35/month
    • Minimum ten users
    • Commercial licence covering all business modules
    • E-invoicing included
  • Enterprise$55/month
    • Minimum twenty users
    • Advanced BI and dedicated AI agents
    • SSO and CAS authentication

OutSystems

On request
  • ODC Entry$undefined/year
    • Entry-level Application Object allowance included
    • Internal users sold in packs of 100
    • External users sold in packs of 10,000
  • ODC Enterprise$undefined/year
    • Custom AO, user pack and environment volumes
    • Negotiated multi-year enterprise agreements
    • Premium support and dedicated infrastructure options

Which should you pick?

Choose Axelor if

  • You need axelor studio.
  • You want to start without paying.
  • You work on Web, Linux, Docker, iOS, Android.
  • You also want bpm engine.
Axelor review

Choose OutSystems if

  • You need visual application modelling.
  • You work on Web, iOS, Android.
  • You also want generated deployable code.
OutSystems review

Questions people ask

Is Axelor or OutSystems better?
Neither clearly leads. Axelor starts at Free and OutSystems at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Axelor or OutSystems?
Axelor has a free tier; the other does not. Paid plans start at Free for Axelor and On request for OutSystems.
Does Axelor or OutSystems run on more platforms?
Axelor runs on Web, Linux, Docker, iOS, Android. OutSystems runs on Web, iOS, Android.
Can I use Axelor for free?
Yes. Axelor has a free tier, so you can try it without paying. OutSystems starts at On request.
What is Axelor best used for?
Axelor is most often used for a european sme that wants erp on its own servers for data sovereignty rather than in a us cloud, a company whose processes do not fit a standard erp and that wants to model them in bpmn instead of paying for custom code, a francophone business needing a french chart of accounts and local statutory reporting out of the box, a team validating an open source erp on the free community edition with the option to move the same database onto a commercial licence later. Of those, a european sme that wants erp on its own servers for data sovereignty rather than in a us cloud and a company whose processes do not fit a standard erp and that wants to model them in bpmn instead of paying for custom code are not what OutSystems is typically brought in for.
What can Axelor do that OutSystems cannot?
Axelor covers Axelor Studio, BPM engine, CRM and sales, Manufacturing. OutSystems covers Visual application modelling, Generated deployable code, One-click deployment, AI-assisted development.

Answered from the vendors’ own pages

Axelor: Is Axelor really free?

The Community edition is genuinely AGPL open source with no licence fee, but it lacks several business modules and has no vendor support, and you carry all hosting and upgrade work.

OutSystems: What is an Application Object?

A unit OutSystems uses to measure application complexity, counting elements such as screens, database tables and exposed APIs; more AOs mean a bigger licence requirement.

Axelor: Can I upgrade from Community without losing data?

Yes, Axelor states that a Community deployment can move to Pro or Enterprise keeping its database and configuration, which is unusual among open core vendors.

OutSystems: Is there a free tier?

OutSystems has offered free or trial tiers historically for evaluation, but production use at any scale runs on paid ODC plans.

Axelor: Do I need Java developers?

Not for most changes. Studio handles entities, views and workflows as configuration. Deep integrations and new module logic still need Java skills.

OutSystems: How does external user pricing work?

External users, typically customers or partners, are sold in packs of 10,000 at roughly a hundredth of the per-seat cost of internal (employee) user packs.

Axelor: Does it handle EU e-invoicing mandates?

E-invoicing is included on the paid editions, which is the main reason French customers move off Community as mandates come into force.

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