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Cybersecurity · head to head

Keeper Password Manager vs Proton Mail

Keeper Password Manager logo

Keeper Password Manager

Cybersecurity

Cybersecurity starts here

From
Free
Rated
-
Full reviewWebsite
Proton Mail logo

Proton Mail

Cybersecurity

Secure email that protects your privacy

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Keeper Password Manager free tier limited to 10 passwords on one device only; Proton Mail paid plan pricing not displayed on vendor site
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Keeper Password Manager and Proton Mail actually diverge.

Attributes where Keeper Password Manager and Proton Mail differ
AttributeKeeper Password ManagerProton Mail
Pricing modelUnknownfreemium
PlatformsWeb, iOS, Android, Windows, macOSWeb
Founded2011Unknown

Identical on both: starting price (Free), free tier (Yes), 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 Keeper Password Manager

  • Zero-knowledge security
  • Password vault
  • BreachWatch dark web monitoring
  • Secure file storage
  • One-time share
  • Emergency access
  • Passkey support
  • Secrets Manager

Only in Proton Mail

Nothing recorded that Keeper Password Manager does not also cover.

What people use each for

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

Keeper Password Manager

  • Password Managernot Proton Mail
  • Secrets Managementnot Proton Mail
  • Privileged Accessnot Proton Mail

Proton Mail

  • Encrypted email communicationnot Keeper Password Manager
  • Privacy-focused email servicenot Keeper Password Manager
  • Family email protectionnot Keeper Password Manager

Where each one falls short

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

Keeper Password Manager

  • Free tier limited to 10 passwords on one device only
  • Personal and Family plans lack team collaboration features
  • Higher per-user cost for small teams compared to some competitors

Proton Mail

  • Paid plan pricing not displayed on vendor site
  • Free tier limited to 1 GB storage
  • Free tier limited to single email address

Pricing, plan by plan

Keeper Password Manager

Free
  • Personal$34.99/year
  • Family$74.99/year
  • Business Starter$2/user per month
  • Business$3.75/user per month

Proton Mail

Free

No published plan breakdown. See the Proton Mail review.

Which should you pick?

Choose Keeper Password Manager if

  • You need zero-knowledge security.
  • You want to start without paying.
  • You work on Web, iOS, Android, Windows, macOS.
  • You also want password vault.
Keeper Password Manager review

Choose Proton Mail if

  • You want to start without paying.
Proton Mail review

Questions people ask

Is Keeper Password Manager or Proton Mail better?
Neither clearly leads. Keeper Password Manager starts at Free and Proton Mail at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keeper Password Manager or Proton Mail?
Keeper Password Manager starts at Free and Proton Mail at Free.
Does Keeper Password Manager or Proton Mail run on more platforms?
Keeper Password Manager runs on Web, iOS, Android, Windows, macOS. Proton Mail runs on Web.
Can I use Keeper Password Manager for free?
Both have a free tier, so you can try either at no cost before committing.
What is Keeper Password Manager best used for?
Keeper Password Manager is most often used for password manager, secrets management, privileged access. Of those, password manager and secrets management are not what Proton Mail is typically brought in for.
What can Keeper Password Manager do that Proton Mail cannot?
Keeper Password Manager covers Zero-knowledge security, Password vault, BreachWatch dark web monitoring, Secure file storage.

Answered from the vendors’ own pages

Keeper Password Manager: Does Keeper offer a free tier?

Keeper's free version stores only 10 passwords on a single mobile device with no cross-device sync and is effectively a trial.

Source
Proton Mail: Is there a free version of Proton Mail?

Yes, Proton Mail offers a free plan with 1 GB storage, 1 encrypted email address, and basic features like folders, labels, and filters.

Source
Keeper Password Manager: What does Keeper Business cost?

Keeper Business Starter costs $2 per user per month for 5-10 users. Keeper Business costs $3.75 per user per month for unlimited users.

Source
Proton Mail: What does the Mail Plus plan include?

Mail Plus includes 15 GB storage, 10 encrypted email addresses, support for 1 custom domain, 10 hide-my-email aliases, priority support, and access to Proton Calendar.

Source
Keeper Password Manager: Does Keeper Enterprise include SSO?

Yes. Keeper Enterprise includes single sign-on capabilities along with compliance and reporting features at $6 per user per month.

Source
Proton Mail: What is included in Proton Unlimited?

Proton Unlimited provides 500 GB storage, 15 email addresses, 3 custom domains, unlimited hide-my-email aliases, access to Mail, Calendar, VPN, Drive, and Pass, plus dedicated support.

Source
Keeper Password Manager: What security features does Keeper include?

Keeper uses zero-knowledge encryption where the company cannot access passwords, plus advanced features like privileged access management and session recording on Enterprise Plus.

Proton Mail: Does Proton Mail offer a money-back guarantee?

Yes, Proton Mail provides a 30-day money-back guarantee for paid plans.

Source
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