Softwr

Cybersecurity · head to head

Proton Mail vs Sourcegraph

Proton Mail logo

Proton Mail

Cybersecurity

Secure email that protects your privacy

From
Free
Free plan
Yes
Full reviewWebsite
Sourcegraph logo

Sourcegraph

Developer Tools

Code search and intelligence platform for large codebases with Cody AI assistant

From
$16000/year
Free plan
No
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; Sourcegraph enterprise pricing starting at $16k annually creates significant barrier for small teams
  • Prices and features above were last checked on 29 August 2026.

Where they differ

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

Attributes where Proton Mail and Sourcegraph differ
AttributeProton MailSourcegraph
Starting priceFree$16000/year
Pricing modelfreemiumsubscription
Free tierYesNo
PlatformsWebCloud, Self-hosted
CategoryCybersecurityDeveloper Tools

Identical on both: user rating (Not yet rated).

What people use each for

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

Proton Mail

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

Sourcegraph

  • Large-scale code migrations across hundreds of repositoriesnot Proton Mail
  • Enterprise governance and code ownership trackingnot Proton Mail
  • AI-assisted bug hunting and security pattern detectionnot Proton Mail
  • Onboarding engineers into large unfamiliar codebasesnot Proton Mail
  • Regulatory compliance and code audit trailsnot 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

Sourcegraph

  • Enterprise pricing starting at $16k annually creates significant barrier for small teams
  • No free tier or standard plan published; all options require custom sales engagement
  • Complex enterprise-only positioning limits adoption compared to GitHub Copilot's pervasiveness
  • Requires indexing entire codebase; not suitable for small or ephemeral projects

Pricing, plan by plan

Proton Mail

Free

No published plan breakdown. See the Proton Mail review.

Sourcegraph

$16000/year
  • Enterprise$16000/year
    • Scales with team size
    • Credits for AI features per user
    • Deep Search

Which should you pick?

Choose Proton Mail if

  • You want to start without paying.
Proton Mail review

Choose Sourcegraph if

  • You work on Cloud, Self-hosted.
Sourcegraph review

Questions people ask

Is Proton Mail or Sourcegraph better?
Neither clearly leads. Proton Mail starts at Free and Sourcegraph at $16000/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Proton Mail or Sourcegraph?
Proton Mail has a free tier; the other does not. Paid plans start at Free for Proton Mail and $16000/year for Sourcegraph.
Does Proton Mail or Sourcegraph run on more platforms?
Proton Mail runs on Web. Sourcegraph runs on Cloud, Self-hosted.
Can I use Proton Mail for free?
Yes. Proton Mail has a free tier, so you can try it without paying. Sourcegraph starts at $16000/year.
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 Sourcegraph is typically brought in for.

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
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
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
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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