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Cybersecurity · head to head

Proton Mail vs TrustArc

Proton Mail logo

Proton Mail

Cybersecurity

Secure email that protects your privacy

From
Free
Rated
-
Full reviewWebsite
TrustArc logo

TrustArc

Cybersecurity

Privacy management platform with regulatory research and the TRUSTe certification programme

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Proton Mail has a free tier, so it costs nothing to try first.
  • Each has a real cost: Proton Mail paid plan pricing not displayed on vendor site; TrustArc the software layer is generally shallower than OneTrust, particularly automated data discovery across large heterogeneous estates, so organisations with sprawling infrastructure often still need a separate discovery tool.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Proton Mail and TrustArc actually diverge.

Attributes where Proton Mail and TrustArc differ
AttributeProton MailTrustArc
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo

Identical on both: platforms (Web), 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 Proton Mail

Nothing recorded that TrustArc does not also cover.

Only in TrustArc

  • Nymity Research
  • TRUSTe certification
  • Consent and preference management
  • Privacy assessments
  • Data inventory and mapping
  • Individual rights requests
  • Cookie consent manager
  • Privacy programme benchmarking

What people use each for

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

Proton Mail

  • Encrypted email communicationnot TrustArc
  • Privacy-focused email servicenot TrustArc
  • Family email protectionnot TrustArc

TrustArc

  • A consumer brand that needs an independent privacy seal on its website because enterprise customers or app stores ask for third-party verificationnot Proton Mail
  • A multinational privacy team that needs a maintained answer to what a given jurisdiction requires without retaining outside counsel for every questionnot Proton Mail
  • An organisation running DPIAs at volume that wants templates tied to a maintained regulatory library rather than to a consultant word documentnot Proton Mail
  • A privacy programme being audited that needs documented maturity benchmarking against a recognised framework of programme activitiesnot Proton Mail

Where each one falls short

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

Proton Mail

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

TrustArc

  • The software layer is generally shallower than OneTrust, particularly automated data discovery across large heterogeneous estates, so organisations with sprawling infrastructure often still need a separate discovery tool.
  • The integration catalogue is smaller than the market leader, which means more of the data inventory is maintained by hand and drifts out of date between reviews.
  • Certification services are sold separately from the platform subscription, so the seal that is often the reason for choosing TrustArc is an extra line item and an extra annual renewal.
  • Reported contract values vary enormously by module mix and organisation size, and the absence of published pricing means smaller buyers have no anchor and routinely discover the entry price is higher than expected.
  • TrustArc stays inside privacy, so organisations that later want third-party risk, security compliance or ethics reporting on the same platform will be running a second vendor anyway.

Pricing, plan by plan

Proton Mail

Free

No published plan breakdown. See the Proton Mail review.

TrustArc

On request
  • TrustArc Privacy Platform$undefined/year
    • Quoted by module, entity count and data volume
    • TRUSTe certification and assessment services priced separately from platform subscription
    • Nymity Research licensed as a separate module

Which should you pick?

Choose Proton Mail if

  • You want to start without paying.
Proton Mail review

Choose TrustArc if

  • You need nymity research.
  • You also want truste certification.
TrustArc review

Questions people ask

Is Proton Mail or TrustArc better?
Neither clearly leads. Proton Mail starts at Free and TrustArc at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Proton Mail or TrustArc?
Proton Mail has a free tier; the other does not. Paid plans start at Free for Proton Mail and On request for TrustArc.
Does Proton Mail or TrustArc run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Proton Mail for free?
Yes. Proton Mail has a free tier, so you can try it without paying. TrustArc starts at On request.
What is Proton Mail best used for?
Proton Mail is most often used for encrypted email communication, privacy-focused email service, family email protection. Of those, encrypted email communication and privacy-focused email service are not what TrustArc is typically brought in for.
What can Proton Mail do that TrustArc cannot?
TrustArc covers Nymity Research, TRUSTe certification, Consent and preference management, Privacy assessments.

Answered from the vendors’ own pages

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
TrustArc: What does TrustArc have that OneTrust does not?

Nymity Research, a maintained regulatory intelligence library acquired in 2019, and the TRUSTe third-party certification and seal programme.

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
TrustArc: How much does TrustArc cost?

Not published. Reported enterprise agreements range widely depending on modules and organisation size, and certification services are quoted on top of the platform subscription.

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
TrustArc: Is TRUSTe the same company?

Yes. TrustArc is the renamed TRUSTe business and still operates the TRUSTe certification programme as a subsidiary.

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

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

Source
TrustArc: Does it handle cookie consent for Europe?

Yes, it includes a consent manager with scanning and banner delivery, though pure-play consent vendors are cheaper if that is all you need.

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