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Cybersecurity · head to head

1Password vs Keil MDK

1Password logo

1Password

Cybersecurity

The world's most-loved password manager

From
$2.99/month
Rated
-
Full reviewWebsite
Keil MDK logo

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Keil MDK has a free tier, so it costs nothing to try first.
  • Each has a real cost: 1Password no free tier; all plans require paid subscription; Keil MDK pricing for Essential and Professional subscriptions not disclosed on primary site

Where they differ

Only the attributes on which 1Password and Keil MDK actually diverge.

Attributes where 1Password and Keil MDK differ
Attribute1PasswordKeil MDK
Starting price$2.99/monthFree
Pricing modelUnknownfreemium
Free tierNoYes
PlatformsmacOS, Windows, iOS, Android, Linux, WebWeb
CategoryCybersecurityDeveloper Tools
Founded2006Unknown

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 1Password

  • Password generator
  • Autofill
  • Secure notes
  • Credit card storage
  • Document storage
  • Two-factor authentication
  • Watchtower security alerts
  • Travel mode

Only in Keil MDK

Nothing recorded that 1Password does not also cover.

What people use each for

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

1Password

  • Password managementnot Keil MDK
  • Secure document storagenot Keil MDK
  • Team credential sharingnot Keil MDK
  • Identity protectionnot Keil MDK
  • Compliance managementnot Keil MDK

Keil MDK

  • Embedded software developmentnot 1Password
  • ARM microcontroller programmingnot 1Password
  • Professional development environmentsnot 1Password

Where each one falls short

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

1Password

  • No free tier; all plans require paid subscription
  • Offline access requires prior device sync; cannot add new passwords while offline
  • Enterprise plan does not include free trial access

Keil MDK

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

Pricing, plan by plan

1Password

$2.99/month

No published plan breakdown. See the 1Password review.

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

Which should you pick?

Choose 1Password if

  • You need password generator.
  • You work on macOS, Windows, iOS, Android, Linux, Web.
  • You also want autofill.
1Password review

Choose Keil MDK if

  • You want to start without paying.
Keil MDK review

Questions people ask

Is 1Password or Keil MDK better?
Neither clearly leads. 1Password starts at $2.99/month and Keil MDK at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, 1Password or Keil MDK?
Keil MDK has a free tier; the other does not. Paid plans start at $2.99/month for 1Password and Free for Keil MDK.
Does 1Password or Keil MDK run on more platforms?
1Password runs on macOS, Windows, iOS, Android, Linux, Web. Keil MDK runs on Web.
Can I use Keil MDK for free?
Yes. Keil MDK has a free tier, so you can try it without paying. 1Password starts at $2.99/month.
What is 1Password best used for?
1Password is most often used for password management, secure document storage, team credential sharing, identity protection. Of those, password management and secure document storage are not what Keil MDK is typically brought in for.
What can 1Password do that Keil MDK cannot?
1Password covers Password generator, Autofill, Secure notes, Credit card storage.

Answered from the vendors’ own pages

1Password: Does 1Password offer a free tier?

No. 1Password offers no free tier as of July 2026, but provides a 14-day free trial with no credit card required for all plans except Enterprise.

Source
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
1Password: Can I access 1Password offline?

Yes. The desktop app allows for offline access to your vault once you have synced your passwords to the device.

Source
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
1Password: What is the pricing for individuals and families?

Individual plan costs 2.99 USD per month or 35.88 USD annually. Families plan costs 59.88 USD per year and includes five licenses with the ability to add more for 1 USD per month each.

Source
1Password: What platforms does 1Password support?

1Password is available on macOS, Windows, iOS, Android, Linux, with browser extensions for Chrome, Firefox, Edge, Brave, and Safari.

Source
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