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CAD · head to head

Altium 365 vs Arena PLM

Altium 365 logo

Altium 365

CAD

Cloud workspace for Altium Designer PCB projects, now inside Renesas

From
$1990/year
Rated
-
Full reviewWebsite
Arena PLM logo

Arena PLM

Manufacturing

Cloud PLM and QMS for electronics and medical device teams, now part of PTC

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Altium 365 the 1,990 US dollar Altium Develop entry price is capped at five authors in total, so a growing team hits a forced migration to Agile Teams with unpublished pricing exactly when headcount is rising.; Arena PLM no pricing is published, and third-party figures circulating online range from roughly $1,000 to $3,000 per user per year, which tells you the spread is wide and the quote is entirely negotiated.
  • They diverge on capability: Altium 365 covers Shared workspace, Arena PLM covers BOM and AML management.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Altium 365 and Arena PLM actually diverge.

Attributes where Altium 365 and Arena PLM differ
AttributeAltium 365Arena PLM
Starting price$1990/yearOn request
Pricing modelPer user per yearquote
PlatformsWeb, Windows, Cloud, On-premiseWeb, Cloud
CategoryCADManufacturing

Identical on both: free tier (No), 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 Altium 365

  • Shared workspace
  • Managed components
  • Browser review
  • Unlimited workspace users
  • MCAD CoDesigner
  • Manufacturing portal
  • Requirements Portal
  • BOM Portal

Only in Arena PLM

  • BOM and AML management
  • Engineering change control
  • Quality management
  • Compliance tracking
  • Supplier collaboration
  • Requirements management
  • Validation support

What people use each for

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

Altium 365

  • A hardware startup where two engineers draw boards but eight people need to review them, avoiding eight CAD seatsnot Arena PLM
  • A team handing fabrication and assembly data to a contract manufacturer as a versioned release rather than a zip of Gerbersnot Arena PLM
  • A company running board and enclosure design in parallel and needing bidirectional geometry exchange with mechanical CADnot Arena PLM
  • A buyer checking component lifecycle and availability against the live BOM before a design is frozennot Arena PLM

Arena PLM

  • A hardware startup moving from spreadsheets to a controlled BOM before its first contract manufacturer buildnot Altium 365
  • A medical device company needing PLM and a 21 CFR Part 11 quality system in one auditable recordnot Altium 365
  • An electronics team that needs component obsolescence and RoHS risk visible against the live BOMnot Altium 365
  • A distributed engineering group that needs a contract manufacturer to see the released BOM without a VPN or an IT projectnot Altium 365

Where each one falls short

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

Altium 365

  • The 1,990 US dollar Altium Develop entry price is capped at five authors in total, so a growing team hits a forced migration to Agile Teams with unpublished pricing exactly when headcount is rising.
  • Add-on portals are expensive per seat; BOM Portal has been quoted at around 1,999 US dollars per user per year and MCAD CoDesigner at around 499, so the real cost of a working configuration is well above the headline.
  • It is tied to Altium Designer; there is no meaningful use of the platform for teams designing in KiCad, OrCAD or Allegro, which makes it a lock-in decision rather than a tooling one.
  • Renesas acquired Altium in 2024, and a semiconductor manufacturer owning the design tool used to select competing semiconductors is a conflict some buyers will want addressed in writing before uploading a library.
  • Repeated repackaging, from Altium 365 Standard and Pro tiers to Altium Develop and Agile Teams, has made renewal comparisons difficult and customers have found their previous tier no longer maps to anything on the price list.

Arena PLM

  • No pricing is published, and third-party figures circulating online range from roughly $1,000 to $3,000 per user per year, which tells you the spread is wide and the quote is entirely negotiated.
  • PTC acquired Arena in 2021 and its strategic PLM is Windchill, so Arena occupies the lower end of a portfolio and a buyer should assume the upgrade path out of Arena is a migration, not an expansion.
  • Licensing is tiered by user type, and read-mostly participants such as manufacturing or purchasing staff still consume paid seats, so organisations with many occasional viewers pay more per useful user than the headline suggests.
  • CAD integration is file and metadata level rather than deep design management, so teams wanting in-CAD check-in and check-out with full configuration control will find it thinner than Windchill or Teamcenter.
  • It is cloud-only multi-tenant with no self-hosted option, so defence, ITAR-sensitive or air-gapped programmes need to confirm data residency and access controls before it clears procurement.

Pricing, plan by plan

Altium 365

$1990/year
  • Altium Develop$1990/year
    • One Altium Designer author licence
    • One workspace for shared projects and libraries
    • Unlimited workspace users for review, comment, tasks and BOM access
  • Altium Agile Teams$undefined/year
    • For teams beyond five ECAD authors
    • Extended workspace governance and administration
    • Quoted, no published price
  • Enterprise$undefined/year
    • On-premise or private cloud workspace server
    • Formal ECO and lifecycle governance
    • Quoted, no published price

Arena PLM

On request
  • Arena PLM$undefined/year
    • Named-user annual subscription
    • BOM, item and change management
    • Supplier and compliance data
  • Arena PLM and QMS$undefined/year
    • Everything in PLM
    • CAPA, complaints and nonconformance
    • Training records and design history file

Which should you pick?

Choose Altium 365 if

  • You need shared workspace.
  • You work on Web, Windows, Cloud, On-premise.
  • You also want managed components.
Altium 365 review

Choose Arena PLM if

  • You need bom and aml management.
  • You work on Web, Cloud.
  • You also want engineering change control.
Arena PLM review

Questions people ask

Is Altium 365 or Arena PLM better?
Neither clearly leads. Altium 365 starts at $1990/year and Arena PLM at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Altium 365 or Arena PLM?
Altium 365 starts at $1990/year and Arena PLM at On request.
Does Altium 365 or Arena PLM run on more platforms?
Altium 365 runs on Web, Windows, Cloud, On-premise. Arena PLM runs on Web, Cloud.
What is Altium 365 best used for?
Altium 365 is most often used for a hardware startup where two engineers draw boards but eight people need to review them, avoiding eight cad seats, a team handing fabrication and assembly data to a contract manufacturer as a versioned release rather than a zip of gerbers, a company running board and enclosure design in parallel and needing bidirectional geometry exchange with mechanical cad, a buyer checking component lifecycle and availability against the live bom before a design is frozen. Of those, a hardware startup where two engineers draw boards but eight people need to review them, avoiding eight cad seats and a team handing fabrication and assembly data to a contract manufacturer as a versioned release rather than a zip of gerbers are not what Arena PLM is typically brought in for.
What can Altium 365 do that Arena PLM cannot?
Altium 365 covers Shared workspace, Managed components, Browser review, Unlimited workspace users. Arena PLM covers BOM and AML management, Engineering change control, Quality management, Compliance tracking.

Answered from the vendors’ own pages

Altium 365: Is Altium 365 free with Altium Designer?

A workspace is included with a current subscription, but the higher tiers, extra authors and the add-on portals are chargeable. The unlimited non-author users are genuinely included.

Arena PLM: Is Arena still sold separately from PTC Windchill?

Yes. PTC sells and develops Arena under its own name and positions it for cloud-first small and mid-size manufacturers, with Windchill for large enterprise deployments.

Altium 365: What does it cost?

Altium Develop starts at about 1,990 US dollars a year for one author plus a workspace, with extra authors at 995 US dollars each up to four more. Larger teams are quoted.

Arena PLM: Does Arena publish pricing?

No. It is quoted per named user per year, tiered by user role and by whether the quality module is included.

Altium 365: Who owns Altium now?

Renesas Electronics completed its acquisition of Altium in 2024. Altium 365 is therefore a Renesas-owned platform.

Arena PLM: Can I run Arena on my own servers?

No. It is multi-tenant cloud only.

Altium 365: Can I keep design data on my own servers?

Yes, through the Enterprise on-premise workspace server, but that is a quoted product and most of the newer portal features assume the hosted platform.

Arena PLM: Is it validated for FDA use?

Arena supplies validation documentation and supports 21 CFR Part 11 workflows, but validating your specific configured use remains your responsibility.

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