Softwr

All industries · head to head

1Password vs Nessus

1Password logo

1Password

All industries

The world's most-loved password manager

From
$2.99/month
Rated
-
Full reviewWebsite
Nessus logo

Nessus

Security & Cybersecurity

The most trusted vulnerability assessment solution

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Nessus 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; 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.

Where they differ

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

Attributes where 1Password and Nessus differ
Attribute1PasswordNessus
Starting price$2.99/monthFree
Pricing modelUnknownsubscription
Free tierNoYes
PlatformsmacOS, Windows, iOS, Android, Linux, WebDesktop, Api
CategoryAll industriesSecurity & Cybersecurity
Founded20062002

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 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

  • Scanning hosts and applications for known vulnerabilities and misconfigurationsnot 1Password
  • Running compliance and configuration audits against a defined scopenot 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

Free
  • Nessus Essentials (Free)Free
    • 16 IP addresses
    • Vulnerability scanning
    • Configuration auditing
  • Nessus Professional$2990/year
    • Unlimited IPs
    • Compliance checks
    • Live results
  • Nessus Expert$5290/year
    • All Pro features
    • External attack surface
    • Cloud infrastructure scanning

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 want to start without paying.
  • 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 Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, 1Password or Nessus?
Nessus has a free tier; the other does not. Paid plans start at $2.99/month for 1Password and Free for Nessus.
Does 1Password or Nessus run on more platforms?
1Password runs on macOS, Windows, iOS, Android, Linux, Web. Nessus runs on Desktop, Api.
Can I use Nessus for free?
Yes. Nessus 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 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
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
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
ShareXLinkedInRedditWhatsAppEmail

Related pages

More on 1Password

More on Nessus

Keep looking

Other head to heads