Developer Tools · head to head
Spacelift vs Splunk Enterprise Security
Spacelift
Developer Tools
Infrastructure-as-code orchestration for Terraform, OpenTofu, Pulumi and Kubernetes
- From
- Free
- Free plan
- Yes
Splunk Enterprise Security
Cybersecurity
The platform for operational intelligence
- From
- On request
- Free plan
- No
The short version
- Only Spacelift has a free tier, so it costs nothing to try first.
- Each has a real cost: Spacelift users are unlimited and private workers are metered, so deployment concurrency rather than headcount drives the bill, which inverts how most engineering budgets are built and is easy to under-forecast.; Splunk Enterprise Security splunk Enterprise Security is licensed separately from the Splunk platform, so a SIEM deployment needs both
- They diverge on capability: Spacelift covers Multi-tool orchestration, Splunk Enterprise Security covers Security monitoring.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Spacelift and Splunk Enterprise Security actually diverge.
| Attribute | Spacelift | Splunk Enterprise Security |
|---|---|---|
| Starting price | Free | On request |
| Pricing model | By private worker and tier, not by user | subscription |
| Free tier | Yes | No |
| Platforms | Web, Self-hosted, Cloud | Web, Api |
| Category | Developer Tools | Cybersecurity |
| Founded | Unknown | 2003 |
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 Spacelift
- Multi-tool orchestration
- Policy as code
- Private workers
- Spaces
- Blueprints
- Drift detection
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.
Spacelift
- Platform teams running infrastructure changes through approval gates rather than through application CInot Splunk Enterprise Security
- Organisations standardising Terraform and OpenTofu across many teams with policy enforcementnot Splunk Enterprise Security
- Estates needing private runners so cloud credentials never leave the networknot Splunk Enterprise Security
- Teams wanting drift detection and reconciliation rather than plan-time checks alonenot Splunk Enterprise Security
Splunk Enterprise Security
- Running a security operations centre on Splunk indexed log datanot Spacelift
- Correlation searches, risk based alerting and incident investigationnot Spacelift
- Compliance reporting from pooled security telemetrynot Spacelift
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Spacelift
- Users are unlimited and private workers are metered, so deployment concurrency rather than headcount drives the bill, which inverts how most engineering budgets are built and is easy to under-forecast.
- There is no affordable paid entry point. The free tier stops at two users and the next tier is a five-figure commitment with nothing in between.
- Three of the five tiers are quote-only, so a shortlist cannot be costed without entering a sales process with each vendor on it.
- The self-hosted build lags the hosted one, has no public worker pool and lacks the Azure and Google Cloud integrations available in the SaaS product, with OIDC federation offered as the workaround.
- Stacks, Rego policies, Blueprints, Spaces and Spacelift-managed state are proprietary constructs, so leaving means rebuilding the orchestration layer rather than pointing it at a different runner.
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
Spacelift
Free- FreeFree
- Two users
- Public workers only
- No private workers
- Starter Plus$undefined/year
- Unlimited users
- Two public workers
- One to two private workers
- Business$undefined/year
- Unlimited users
- Three private workers
- Quoted
- Enterprise$undefined/year
- Unlimited users
- Five to thirty private workers
- Self-hosted option
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 Spacelift if
- You need multi-tool orchestration.
- You want to start without paying.
- You work on Web, Self-hosted, Cloud.
- You also want policy as code.
Choose Splunk Enterprise Security if
- You need security monitoring.
- You work on Web, Api.
- You also want incident review.
Questions people ask
- Is Spacelift or Splunk Enterprise Security better?
- Neither clearly leads. Spacelift 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, Spacelift or Splunk Enterprise Security?
- Spacelift has a free tier; the other does not. Paid plans start at Free for Spacelift and On request for Splunk Enterprise Security.
- Does Spacelift or Splunk Enterprise Security run on more platforms?
- Spacelift runs on Web, Self-hosted, Cloud. Splunk Enterprise Security runs on Web, Api.
- Can I use Spacelift for free?
- Yes. Spacelift has a free tier, so you can try it without paying. Splunk Enterprise Security starts at On request.
- What is Spacelift best used for?
- Spacelift is most often used for platform teams running infrastructure changes through approval gates rather than through application ci, organisations standardising terraform and opentofu across many teams with policy enforcement, estates needing private runners so cloud credentials never leave the network, teams wanting drift detection and reconciliation rather than plan-time checks alone. Of those, platform teams running infrastructure changes through approval gates rather than through application ci and organisations standardising terraform and opentofu across many teams with policy enforcement are not what Splunk Enterprise Security is typically brought in for.
- What can Spacelift do that Splunk Enterprise Security cannot?
- Spacelift covers Multi-tool orchestration, Policy as code, Private workers, Spaces. Splunk Enterprise Security covers Security monitoring, Incident review, Risk-based alerting, Threat intelligence.
Answered from the vendors’ own pages
Spacelift: How is Spacelift priced?
By tier and by private worker count rather than per user. Users are unlimited on every paid plan. The published figure on the pricing page carries no period label, and the FAQ describes the tier as an annual subscription, so confirm the period in writing.
Splunk 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.
SourceSpacelift: Does it support OpenTofu?
Yes, and Spacelift sponsors the OpenTofu project, which is a substantive hedge for anyone avoiding Terraform under the Business Source Licence.
Splunk 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.
SourceSpacelift: Is there a self-hosted version?
Yes, described as carrying Enterprise functionality, but it is priced on request and lags the hosted product on cloud integrations.
Spacelift: Why not just use the CI system we already have?
That is the real comparison. General purpose CI handles state, drift, approval gates and concurrency control for infrastructure poorly, and whether that is worth a five-figure floor depends on how much infrastructure change your organisation actually ships.
Spacelift: What happens to our pipelines if we leave?
They do not port. Rego policies, Blueprints, Spaces and managed state are Spacelift constructs and the orchestration has to be rebuilt elsewhere.
Related pages
More on Splunk Enterprise Security
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