Unleashvs
Flagsmith


Flagsmith: Another open-source feature flag platform with similar self-hosted options.

Open-source feature flag and experimentation service
As of 25 August 2026, Unleash has a free plan and paid plans start at $75/month. Open-source feature management platform for feature flags, A/B testing and gradual rollouts, cloud or self-hosted. Softwr lists it under Software Development. Unleash is available on Web, API, Linux.
Overview
Unleash is an open-source feature flag service used to manage feature flags, run A/B/n experiments, and control gradual rollouts across applications. It offers a cloud-hosted Pay-As-You-Go plan and a self-hosted or hybrid Enterprise option, with 25+ SDKs, custom targeting, audit logs, and SSO support, aimed at engineering teams practicing continuous delivery and progressive delivery.
The honest half
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Unleash.
Cross-shopped
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.


Flagsmith: Another open-source feature flag platform with similar self-hosted options.


LaunchDarkly: A commercial feature management platform with a broader managed feature set.
Pricing
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Pay-As-You-Go
$75 /mo
Custom Enterprise
On request
Capabilities
Feature flags
Unlimited feature flags across projects and environments
A/B/n testing
Run multivariate experiments using flag variants
Custom targeting
Target rollouts using custom user segments and rules
SDKs
25+ client and server SDKs across languages
SSO
SAML 2.0 and OpenID Connect single sign-on
Audit logs
Audit logs retained for up to two years
Answered, with sources
Each answer names the page it came from, so you can check it rather than take our word for it.
Unleash offers a Pay-As-You-Go cloud plan at $75/seat/month with a 14-day free trial, plus a custom-priced Enterprise plan for self-hosted or hybrid deployments.
SourceThe Pay-As-You-Go plan includes 53M API requests per month, with additional traffic billed at $5 per million requests thereafter.
SourceUnleash provides an API and 25+ official SDKs across languages, along with SSO integrations via SAML 2.0 and OpenID Connect.
SourceKeep looking
Automated code review platform for code quality and security scanning.
Automated code review and AI-powered code fixes for engineering teams.
Command-line inner loop for Kubernetes: watch, build, push and deploy on every file save
Softwr does not host reviews and shows no star rating for Unleash, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
What people switch to, and what they give up
Every tier, and where the cost actually lands
Put it head to head with anything we hold
Its rating, and an embed for your own site
Command-line inner loop for Kubernetes: watch, build, push and deploy on every file save
Open source, no licence feeCloud-based static code analysis for detecting bugs, vulnerabilities, and code smells.
freemium