Cybersecurity · head to head
Proton Mail vs Splunk Enterprise Security
Splunk Enterprise Security
Cybersecurity
The platform for operational intelligence
- From
- On request
- Rated
- -
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; Splunk Enterprise Security splunk Enterprise Security is licensed separately from the Splunk platform, so a SIEM deployment needs both
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Proton Mail and Splunk Enterprise Security actually diverge.
| Attribute | Proton Mail | Splunk Enterprise Security |
|---|---|---|
| Starting price | Free | On request |
| Pricing model | freemium | subscription |
| Free tier | Yes | No |
| Platforms | Web | Web, Api |
| Founded | Unknown | 2003 |
Identical on both: 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 Splunk Enterprise Security does not also cover.
Only in Splunk Enterprise Security
- Security monitoring
- Incident review
- Risk-based alerting
- Threat intelligence
- Investigation workbench
- MITRE ATT&CK mapping
- Automated response
- Compliance reporting
What people use each for
The jobs each tool is most often brought in to do.
Proton Mail
- Encrypted email communicationnot Splunk Enterprise Security
- Privacy-focused email servicenot Splunk Enterprise Security
- Family email protectionnot Splunk Enterprise Security
Splunk Enterprise Security
- Running a security operations centre on Splunk indexed log datanot Proton Mail
- Correlation searches, risk based alerting and incident investigationnot Proton Mail
- Compliance reporting from pooled security telemetrynot 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
Splunk Enterprise Security
- Splunk Enterprise Security is licensed separately from the Splunk platform, so a SIEM deployment needs both
- Splunk publishes no rate for Enterprise Security and directs buyers to contact a pricing expert
- UEBA, SOAR and automated threat analysis require the Premier edition rather than Essentials
- The platform underneath can be billed by ingest volume, workload or activity, so the total cost depends on a pricing model chosen at contract time rather than a list price
Pricing, plan by plan
Proton Mail
FreeNo published plan breakdown. See the Proton Mail review.
Splunk Enterprise Security
On request- Workload PricingFree
- Pay per compute
- Flexible scaling
- All features
- Ingest PricingFree
- Pay per GB ingested
- Predictable costs
- All features
- Entity PricingFree
- Pay per monitored entity
- Security focused
- All features
Which should you pick?
Choose Splunk Enterprise Security if
- You need security monitoring.
- You work on Web, Api.
- You also want incident review.
Questions people ask
- Is Proton Mail or Splunk Enterprise Security better?
- Neither clearly leads. Proton Mail starts at Free and Splunk Enterprise Security at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Proton Mail or Splunk Enterprise Security?
- Proton Mail has a free tier; the other does not. Paid plans start at Free for Proton Mail and On request for Splunk Enterprise Security.
- Does Proton Mail or Splunk Enterprise Security run on more platforms?
- Proton Mail runs on Web. Splunk Enterprise Security runs on Web, Api.
- Can I use Proton Mail for free?
- Yes. Proton Mail has a free tier, so you can try it without paying. Splunk Enterprise Security 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 Splunk Enterprise Security is typically brought in for.
- What can Proton Mail do that Splunk Enterprise Security cannot?
- Splunk Enterprise Security covers Security monitoring, Incident review, Risk-based alerting, Threat intelligence.
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.
SourceSplunk Enterprise Security: How much does Splunk Enterprise Security cost?
Splunk Enterprise Security pricing is not published. The product is available in Essentials Edition with threat detection, investigation, and response capabilities, and Premier Edition with UEBA, SOAR, and Automated Threat Analysis. Customers must contact Splunk sales for pricing quotes on either edition.
SourceProton 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.
SourceSplunk Enterprise Security: What editions of Splunk Enterprise Security are available?
Splunk Enterprise Security offers Essentials Edition with threat detection, investigation, and response capabilities, and Premier Edition which adds UEBA (User and Entity Behavior Analytics), SOAR (Security Orchestration, Automation and Response), and Automated Threat Analysis.
SourceProton 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.
SourceProton Mail: Does Proton Mail offer a money-back guarantee?
Yes, Proton Mail provides a 30-day money-back guarantee for paid plans.
SourceRelated pages
More on Proton Mail
More on Splunk Enterprise Security
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