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Unleash

getunleash.io

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Spec score 8.6 #4 of 38 in Release Management Software

What it is

Unleash is a feature management platform for controlling software behavior and releases in production without redeploying code. Teams can stage progressive rollouts, roll back instantly, apply release templates, and use kill switches. Its experimentation tools include A/B/n testing, flag variants, user segmentation, and stickiness. Flags are evaluated in SDKs or at the edge rather than on the Unleash server. The service lists more than 25 SDKs, including options for Node.js, Java, Go, Python,.NET, React, Android, and iOS. Listed integrations include Slack, Teams, Datadog, Jira, webhooks, and Admin, Frontend, and Client APIs. The free Open Source instance allows no seat limit but is restricted to one project, two environments, and 5,000 flags; it lacks SSO, SCIM, granular RBAC, change-request approvals, and a support SLA. Pay-As-You-Go costs $75 a month, billed monthly, and has a 14-day trial without a credit card. Enterprise can be hosted, self-hosted, or hybrid, with US or EU data residency available.

Spec sheet

What it does
Unleash controls feature releases at runtime so teams can deploy code separately from enabling functionality for users.Read 15 Oct 2026 · getunleash.io
Purpose
Unleash is a feature management platform for controlling software behavior and releases in production without redeploying code.Read 8 Oct 2026 · getunleash.io
Intended users
Unleash describes its platform as serving enterprise teams and highlights governance, approvals, compliance, and scale requirements.Read 8 Oct 2026 · getunleash.io
Deployment
Unleash Enterprise is offered as hosted cloud, self-hosted, or hybrid, with a hosted private instance available as an Enterprise add-on.Read 8 Oct 2026 · getunleash.io
Trial
The Pay-As-You-Go plan has a 14-day trial without a credit card.Read 8 Oct 2026 · getunleash.io
Integrations
Official integrations include Datadog, Jira Cloud, Microsoft Teams, ServiceNow, Slack and generic webhooks; community integrations include Fastify, Quarkus, Vue and New Relic.Read 15 Oct 2026 · docs.getunleash.io
Security
The pricing page lists SOC 2 Type II and GDPR compliance, SSO via SAML 2.0 or OpenID Connect, role-based access control, and audit log retention of up to two years.Read 8 Oct 2026 · getunleash.io
Support
Pay-As-You-Go includes standard support with a one-business-day response target; Custom Enterprise offers standard or premium support and severity-based response times.Read 8 Oct 2026 · getunleash.io
License
The main source repository uses AGPLv3 from version 8 onward; earlier source versions used Apache 2.0 and official open-source Docker images remain Apache 2.0.Read 15 Oct 2026 · docs.getunleash.io
Headquarters
Oslo, NorwayRead 28 Sep 2026 · getunleash.io
Admin API
The Admin API manages flags, projects, environments, users, roles, integrations and other resources and exposes an OpenAPI specification.Read 15 Oct 2026 · docs.getunleash.io
API authentication
Unleash distinguishes backend, frontend, personal-access and service-account tokens, with project and environment scoping.Read 15 Oct 2026 · docs.getunleash.io
Company facts
LinkedIn lists Unleash as privately held, founded in 2019, headquartered in Oslo, Norway, with 51–200 employees.Read 15 Oct 2026 · linkedin.com
Company identity
The maker is legally identified as Bricks Software AS, also known as Unleash.Read 15 Oct 2026 · crunchbase.com
Compliance claims
The maker states that its enterprise controls support SOC 2 Type II, FedRAMP and ISO 27001 requirements and that it provides a Trust Center with reports and policies.Read 15 Oct 2026 · docs.getunleash.io
Data residency
Enterprise plans offer US or EU data residency, and Unleash says it can be self-hosted on customer infrastructure.Read 8 Oct 2026 · getunleash.io
Database requirement
Unleash requires PostgreSQL; version 8 is officially tested with PostgreSQL 15 or later, while MySQL and MariaDB are unsupported.Read 15 Oct 2026 · docs.getunleash.io
Documentation and support
The documentation includes quickstarts, tutorials, guides, Learning Lab content, SDK references, API references, integration pages and release notes.Read 15 Oct 2026 · docs.getunleash.io
Earlier funding
TechCrunch reported Unleash's $14 million Series A led by Spark Capital on March 24, 2022, and said the company had 16 employees and 120 paying customers at that time.Read 15 Oct 2026 · techcrunch.com
Experimentation
Variants carry weights and payloads for A/B or multivariate experiments with user stickiness.Read 15 Oct 2026 · docs.getunleash.io
Feature flags
Flags belong to projects and can have different activation strategies in each environment.Read 15 Oct 2026 · docs.getunleash.io
Flag evaluation
Feature flags are evaluated in SDKs or at the edge rather than on the Unleash server.Read 8 Oct 2026 · getunleash.io
Funding news
Unleash announced a $35 million Series B led by One Peak on March 4, 2026, with Spark Capital, Frontline Ventures and Firstminute Capital continuing as investors.Read 15 Oct 2026 · getunleash.io
Governance
Enterprise provides project and custom roles, user groups, change-request approvals and audit trails.Read 15 Oct 2026 · docs.getunleash.io
Latest release
Release notes list Unleash v8.2.0 on September 8, 2026, adding project-level release templates and creator filtering for flags.Read 15 Oct 2026 · docs.getunleash.io
Limit: advanced learning curve
A G2 reviewer reports that advanced capabilities require training and that large flag inventories can cause minor UI performance issues.Read 15 Oct 2026 · g2.com
Limit: analytics depth
A G2 reviewer says built-in analytics are limited and may require a separate metrics tool.Read 15 Oct 2026 · g2.com
Limit: pricing model
A G2 reviewer requests viewer-only pricing because every user currently pays the full seat price.Read 15 Oct 2026 · g2.com
Limit: SDK polling
Two G2 reviews complain that aggressive default SDK polling can generate unexpectedly high request volume and consume API allowance.Read 15 Oct 2026 · g2.com
Plan limits
The free Open Source instance is limited to 1 project, 2 environments, and 5,000 feature flags, and does not include SSO, SCIM, granular RBAC, change request approvals, or a support SLA.Read 8 Oct 2026 · getunleash.io
Praise: usability and rollout safety
G2 reviewers repeatedly praise the clean interface, easy setup, gradual percentage rollouts, instant rollback and ability to release without redeploying.Read 15 Oct 2026 · g2.com
Privacy architecture
Feature evaluation occurs locally in SDKs or Unleash Edge, and the documentation says Unleash does not collect personally identifiable information.Read 15 Oct 2026 · docs.getunleash.io
Progressive rollouts
Built-in strategies can expose a feature gradually by percentage, user, segment, IP, hostname or other context.Read 15 Oct 2026 · getunleash.io
Rating on G2
4.7 out of 5 from 137 reviews.Read 15 Oct 2026 · g2.com
Rating on GetApp
4.8 out of 5 from 6 reviews.Read 15 Oct 2026 · getapp.com
Rating on TrustRadius
10 out of 10 from 4 reviews.Read 15 Oct 2026 · trustradius.com
Release templates
Enterprise release templates standardize multi-stage rollouts and can be scoped to projects.Read 15 Oct 2026 · docs.getunleash.io
Resource guidance
Documentation suggests starting around 0.5–1 vCPU and 512 MiB–1 GiB RAM for the server, plus at least 1 vCPU, 1 GiB RAM and 5 GiB SSD for PostgreSQL.Read 15 Oct 2026 · docs.getunleash.io
Rollbacks and kill switches
The platform supports one-click rollbacks and kill switches without redeploying application code.Read 15 Oct 2026 · getunleash.io
Rollouts and recovery
The platform supports progressive rollouts, instant rollbacks, release templates, and kill switches.Read 8 Oct 2026 · getunleash.io
SDK coverage
Documentation lists server SDKs for Node.js, Java, Go, Rust, Ruby, Python, .NET and PHP plus frontend SDKs for JavaScript, React, Next.js, Vue, iOS, Android and Flutter.Read 15 Oct 2026 · docs.getunleash.io
SDKs
Unleash lists 25+ SDKs for languages and frameworks including Node.js, Java, Go, Python, .NET, React, Android, and iOS.Read 8 Oct 2026 · getunleash.io
Security controls
Unleash documents SAML 2.0 or OpenID Connect SSO, SCIM, RBAC, CORS and IP controls, four-eyes approvals, audit logging and SIEM integrations.Read 15 Oct 2026 · docs.getunleash.io
Self-hosting
Self-hosted deployment is documented through Docker Compose or Docker CLI with PostgreSQL.Read 15 Oct 2026 · docs.getunleash.io
Technical-debt management
Lifecycle tooling identifies stale flags, supports cleanup states and helps remove flag-related code.Read 15 Oct 2026 · getunleash.io

Plans and prices

Open Source Free 1 project · 2 environments · 5,000 feature flags per instance · no seat limit Read 8 Oct 2026 · getunleash.io
Unleash Open Source Free free to self-host 1 project · 2 environments · 2-day feature metrics · no support Read 15 Oct 2026 · getunleash.io
Cloud-hosted Pay-as-you-go $75 a month per seat/month; billed monthly by credit card 1 seat minimum · unlimited projects and environments · 90-day feature metrics · 99.9% uptime commitment · 14-day free trial Read 15 Oct 2026 · getunleash.io
Pay-As-You-Go $75 a month Billed monthly by credit card; no contract 53M API requests/month, then $5 per million · unlimited client-side MAU, service connections, flags, projects, environments, and experiments · 90-day feature flag metrics · 5-seat minimum for self-hosted Read 8 Oct 2026 · getunleash.io
Self-hosted Pay-as-you-go $75 a year per seat/month billed annually by credit card 5-seat minimum · unlimited projects and environments · 90-day feature metrics · standard support · 1-business-day response SLA · 14-day free trial Read 15 Oct 2026 · getunleash.io
Custom Enterprise Priced on request Annual contract; invoiced Unlimited client-side MAU and service connections · 90-day feature flag metrics · standard or premium support · 99.99% uptime commitment · optional private instance, multi-region Edge, access logs, and IP restrictions Read 8 Oct 2026 · getunleash.io
Enterprise custom Priced on request annual contract; invoice payment unlimited environments and projects · unlimited MAU · custom API allowance · standard or premium support · custom SLA Read 15 Oct 2026 · getunleash.io

Every Unleash plan and price →

Strong points and limits

Strong points

  • Supports progressive rollouts, instant rollbacks, and kill switches
  • Lists more than 25 SDKs
  • Flags are evaluated in SDKs or at the edge
  • Enterprise offers hosted, self-hosted, and hybrid deployments

Limits

  • Free instance is limited to one project
  • Free instance allows only two environments
  • Free instance lacks a support SLA
  • Pay-As-You-Go costs $75 a month

Who it suits

Unleash suits development teams managing releases and experiments across software environments. Its enterprise options address teams needing governance, compliance, data residency, or self-hosting.

Unleash in depth

Read the full write-up

Overview

Unleash is a feature-management platform for changing production behavior without redeploying code. It is best for engineering and product teams coordinating controlled releases, experiments, and governance across several services. The strongest case is its combination of rollout controls, SDK coverage, and hosted or self-managed deployment; smaller teams may find the paid request allowance and governance split harder to justify.

Key features

Progressive rollouts, instant rollbacks, release templates, and kill switches support cautious launches and rapid recovery. These controls are more useful for production change management than a basic on/off flag, particularly when releases need staged exposure or an immediate stop.

Unleash supports A/B/n testing with flag variants, experiments, user segmentation, and stickiness. That gives product teams mechanisms for comparing experiences, while segmentation and stickiness help keep users in consistent cohorts. Flags are evaluated in SDKs or at the edge rather than on the Unleash server, so architecture and SDK choice matter when designing latency and data flows.

More than 25 SDKs cover ecosystems including Node.js, Java, Go, Python,.NET, React, Android, and iOS. Integrations include Slack, Teams, Datadog, Jira, and generic webhooks, plus Admin, Frontend, and Client APIs. Security and governance provisions include SOC 2 Type II, GDPR compliance, SAML 2.0 or OpenID Connect SSO, role-based access control, and audit-log retention of up to two years. The free instance excludes SSO, SCIM, granular RBAC, change-request approvals, and a support SLA, so governed teams will need a paid tier.

Pricing

Open Source

The free Open Source instance costs nothing, with no seat limit. It allows one project, two environments, and 5,000 feature flags per instance. Those caps suit a small service or evaluation, but multi-project organizations will reach the boundaries quickly, and the missing governance and support commitments make it a poor foundation for regulated operations.

Pay-As-You-Go

Pay-As-You-Go costs $75 a month, billed monthly by credit card with no contract, and includes a 14-day trial without a credit card. The plan includes 53M API requests per month; additional usage costs $5 per million. Client-side MAU, service connections, flags, projects, environments, and experiments are unlimited, with 90-day feature-flag metrics. A five-seat minimum applies to self-hosted deployment. This is the practical choice for teams wanting broad capacity and a predictable monthly commitment, provided request volume is monitored.

Custom Enterprise

Custom Enterprise uses an annual contract and invoicing, with custom pricing. It includes unlimited client-side MAU and service connections, 90-day feature-flag metrics, standard or premium support, and a 99.99% uptime commitment. Optional additions include a private instance, multi-region Edge, access logs, and IP restrictions. Enterprise can be hosted in the cloud, self-hosted, or run as a hybrid, with US or EU data residency. Choose it when contractual uptime, residency, or advanced governance outweighs the flexibility of monthly billing.

Platforms

Unleash supports Android, iOS, Linux, macOS, Windows, web, APIs, and self-hosted deployments. The broad platform list and SDK range make it suitable for mixed client and server estates. Self-hosting is available in paid arrangements, while the self-hosted Pay-As-You-Go route requires at least five seats.

Who it's for

Unleash fits enterprise teams that need approvals, compliance controls, progressive delivery, and deployment choice across multiple environments. It also suits smaller engineering groups that can work within the free instance's one-project and two-environment limits. It is less compelling when you need only a handful of flags, have low API volume, or do not need experimentation and governance.

Pros and cons

Pros: Progressive rollout, rollback, templates, and kill switches support safer production releases.

Pros: A/B/n testing, segmentation, and stickiness cover experimentation as well as delivery control.

Pros: More than 25 SDKs and evaluation in SDKs or at the edge accommodate varied architectures.

Pros: Hosted, self-hosted, and hybrid Enterprise options include US or EU residency choices.

Cons: The free instance is restricted to one project, two environments, and 5,000 flags, with key governance features removed.

Cons: Pay-As-You-Go charges $5 per million API requests after 53M monthly, requiring usage oversight.

Cons: Enterprise pricing requires an annual contract and is not published, making budgeting less direct.

Alternatives

See our Feature Flag Software and Release Management Software lists for broader comparisons.

Flagsmith is a freemium, open-source-oriented option with broad platform support. Choose Flipt when a free plan with Git-native workflows and Git sync is the priority. Featureflow suits teams wanting a free tier capped at five seats, one project, two environments, and 1M SDK requests monthly. Featurevisor is a free, self-hosted MIT-licensed alternative without per-seat pricing. GO Feature Flag fits teams seeking free operation on their own infrastructure, with community support. ConfigCat offers a forever-free allowance of 10 flags, two environments, and 5 million configuration downloads monthly. FeatureHub is a paid product with a free open-source offering. LaunchDarkly Experimentation is worth considering when a developer tier with 100K experimentation MAU, one project, and three environments matches your scale.

Verdict

Choose Unleash if you need release controls, experimentation, extensive SDK coverage, and the option to meet enterprise residency or deployment requirements. Look elsewhere if your workload is small enough for a simpler free tool, or if variable API charges and an unpublished annual Enterprise price make cost control more important than governance breadth.

Verdict

Unleash combines release controls and experimentation with a broad SDK list. The free instance has explicit project and environment limits, while enterprise deployment and residency choices are available for teams with those requirements.

Where Specifiction places it

Alternatives to UnleashAll alternatives →