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Developer Tools · head to head

Keil MDK vs One Identity

Keil MDK logo

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From
Free
Free plan
Yes
Full reviewWebsite
One Identity logo

One Identity

Cybersecurity

Quest-owned identity governance, PAM and Active Directory management

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Only Keil MDK has a free tier, so it costs nothing to try first.
  • Each has a real cost: Keil MDK pricing for Essential and Professional subscriptions not disclosed on primary site; One Identity the portfolio is assembled from separate acquisitions, so components are separately licensed, separately administered and do not present one console, which raises operational cost.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Keil MDK and One Identity actually diverge.

Attributes where Keil MDK and One Identity differ
AttributeKeil MDKOne Identity
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo
PlatformsWebWeb, Windows, Linux
CategoryDeveloper ToolsCybersecurity

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 Keil MDK

Nothing recorded that One Identity does not also cover.

Only in One Identity

  • Identity Manager
  • Safeguard
  • Active Roles
  • OneLogin
  • Password Manager
  • syslog-ng
  • Starling connectors

What people use each for

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

Keil MDK

  • Embedded software developmentnot One Identity
  • ARM microcontroller programmingnot One Identity
  • Professional development environmentsnot One Identity

One Identity

  • An organisation whose authoritative directory will remain on premises Active Directory and needs delegated administration with attribute-level controlnot Keil MDK
  • A government or defence environment requiring privileged session management on a hardened physical appliance rather than a cloud servicenot Keil MDK
  • A manufacturer with SAP and Active Directory needing provisioning governed under one certification processnot Keil MDK
  • An enterprise consolidating Active Directory after an acquisition and needing automated account lifecycle across both forestsnot Keil MDK

Where each one falls short

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

Keil MDK

  • Pricing for Essential and Professional subscriptions not disclosed on primary site
  • Customers must contact Arm Developer Tools store for subscription rates

One Identity

  • The portfolio is assembled from separate acquisitions, so components are separately licensed, separately administered and do not present one console, which raises operational cost.
  • Identity Manager implementations are customisation-heavy and commonly run over a year, with the services spend exceeding the licence cost in the first year.
  • Quest has changed private equity ownership more than once since the Dell separation, and buyers should ask directly about product investment commitments before signing a multi-year deal.
  • Product documentation and support sit behind a customer portal, which makes independent evaluation before purchase harder than with vendors that publish openly.
  • The cloud-native and developer experience trails the pure-play identity vendors, so organisations moving decisively to SaaS applications find the on premises heritage becomes a constraint rather than an asset.

Pricing, plan by plan

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

One Identity

On request
  • Identity Manager$undefined/year
    • Priced per managed identity
    • On premises or hosted
    • Access certification and provisioning
  • Safeguard$undefined/year
    • Priced per privileged user or per appliance
    • Hardened appliance option for session management
    • Licensed separately from Identity Manager
  • Active Roles$undefined/year
    • Priced per managed Active Directory account
    • Delegated administration and automated provisioning
    • Licensed separately

Which should you pick?

Choose Keil MDK if

  • You want to start without paying.
Keil MDK review

Choose One Identity if

  • You need identity manager.
  • You work on Web, Windows, Linux.
  • You also want safeguard.
One Identity review

Questions people ask

Is Keil MDK or One Identity better?
Neither clearly leads. Keil MDK starts at Free and One Identity at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keil MDK or One Identity?
Keil MDK has a free tier; the other does not. Paid plans start at Free for Keil MDK and On request for One Identity.
Does Keil MDK or One Identity run on more platforms?
Keil MDK runs on Web. One Identity runs on Web, Windows, Linux.
Can I use Keil MDK for free?
Yes. Keil MDK has a free tier, so you can try it without paying. One Identity starts at On request.
What is Keil MDK best used for?
Keil MDK is most often used for embedded software development, arm microcontroller programming, professional development environments. Of those, embedded software development and arm microcontroller programming are not what One Identity is typically brought in for.
What can Keil MDK do that One Identity cannot?
One Identity covers Identity Manager, Safeguard, Active Roles, OneLogin.

Answered from the vendors’ own pages

Keil MDK: Does Keil MDK have a free version?

Yes, Keil MDK Community Edition is free for non-commercial projects. Essential and Professional editions are available as monthly or annual subscriptions.

Source
One Identity: Is One Identity the same company as Quest?

Yes. One Identity is Quest Software's identity and access management business unit, not a separate vendor.

Keil MDK: How much do Keil MDK paid editions cost?

Specific pricing for Essential and Professional editions is not published on the main site. Rates are available from the Arm Developer Tools store or by contacting Arm sales.

Source
One Identity: Does it include privileged access?

Safeguard provides it, but it is licensed separately from Identity Manager. Neither includes the other.

One Identity: Why choose this over SailPoint or Saviynt?

Almost always because of Active Directory depth via Active Roles or an appliance requirement for privileged sessions. For cloud-first estates the specialists are the stronger choice.

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