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Cybersecurity · head to head

1Password vs Nessus

1Password logo

1Password

Cybersecurity

The world's most-loved password manager

From
$2.99/month
Rated
-
Full reviewWebsite
Nessus logo

Nessus

Cybersecurity

The most trusted vulnerability assessment solution

From
$4790/year
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 1Password no free tier; all plans require paid subscription; Nessus nessus Professional is $4,790 for one year, with no free or low cost commercial tier
  • They diverge on capability: 1Password covers Password generator, Nessus covers Vulnerability scanning.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which 1Password and Nessus actually diverge.

Attributes where 1Password and Nessus differ
Attribute1PasswordNessus
Starting price$2.99/month$4790/year
Pricing modelUnknownsubscription
PlatformsmacOS, Windows, iOS, Android, Linux, WebDesktop, Api
Founded20062002

Identical on both: free tier (No), user rating (Not yet rated), category (Cybersecurity).

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 Nessus

  • Vulnerability scanning
  • Configuration auditing
  • Malware detection
  • Web application scanning
  • Cloud scanning
  • Compliance checks
  • Patch auditing
  • Pre-built policies

What people use each for

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

1Password

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

Nessus

  • Vulnerability scanning for individual practitionersnot 1Password
  • Enterprise vulnerability managementnot 1Password
  • Web application security assessmentsnot 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

Nessus

  • Nessus Professional is $4,790 for one year, with no free or low cost commercial tier
  • Multi year terms are the only discount route, at $9,330.95 for two years and $13,637.54 for three
  • It is a single user scanner, so team workflows mean migrating to another Tenable product
  • Tenable One vulnerability management is priced separately, starting at $3,500 a year for 100 assets

Pricing, plan by plan

1Password

$2.99/month

No published plan breakdown. See the 1Password review.

Nessus

$4790/year
  • Nessus Professional$4790/year
    • 1 year license
    • Best for individual security professionals
  • Nessus Professional 2-Year$9330.95/2 years
    • 2 year license with discounted rate vs. annual
  • Nessus Professional 3-Year$13637.54/3 years
    • 3 year license with discounted rate vs. annual
  • Nessus Expert$6790/year
    • 1 year license
    • Enhanced capabilities vs. Professional

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 Nessus if

  • You need vulnerability scanning.
  • You work on Desktop, Api.
  • You also want configuration auditing.
Nessus review

Questions people ask

Is 1Password or Nessus better?
Neither clearly leads. 1Password starts at $2.99/month and Nessus at $4790/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, 1Password or Nessus?
1Password starts at $2.99/month and Nessus at $4790/year.
Does 1Password or Nessus run on more platforms?
1Password runs on macOS, Windows, iOS, Android, Linux, Web. Nessus runs on Desktop, Api.
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 Nessus is typically brought in for.
What can 1Password do that Nessus cannot?
1Password covers Password generator, Autofill, Secure notes, Credit card storage. Nessus covers Vulnerability scanning, Configuration auditing, Malware detection, Web application scanning.

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
Nessus: What is the cheapest Nessus option?

Nessus Professional starts at $4,790 per year for a 1-year license. Multi-year commitments offer discounts, with 2-year licenses at $9,330.95 and 3-year licenses at $13,637.54.

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
Nessus: What is the difference between Nessus Professional and Expert?

Nessus Expert costs $6,790 per year for a 1-year license (compared to $4,790 for Professional) and includes enhanced capabilities. Multi-year rates are available at discounted prices.

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
Nessus: Does Nessus offer optional support or training?

Yes, Nessus offers add-on services: Advanced Support at $400/year provides 24x365 access to phone, email, community, and chat support. On-Demand Training costs $275/year for Fundamentals course access or $385/year for both Fundamentals and Advanced courses.

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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