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Everything you need to know about the setup, deployment and customization of Unleash

How Total Wine and More  blended security and control with experimentation,  on its own terms.

How Pitch’s engineers got back their time for creativity.

See how Unleash works in 2 minutes 

<span style="font-weight: 500; line-height: 1.44"><br />
Unleash gives you full control over when and how features are released—without the hidden costs or rigid infrastructure of LaunchDarkly<br />
<br />
&#9726; Simple pricing, no surprises<br />
&#9726; Deploy in your cloud or on-prem <br />
&#9726; Largest open-source solution<br />
&#9726; Built for enterprise scale<br />
</span>

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Unleash offers no surprises on your invoice, which makes it easier to plan growth. For most users, Unleash is ¼ the cost of LaunchDarkly with more flexibility and more enterprise capabilities.

Run Unleash anywhere—in our managed SaaS or your cloud/data center—so you stay in control of security, compliance, and performance. LaunchDarkly locks you into their managed cloud, limiting flexibility.

With over 100,000+ active users, 12K+ GitHub stars, and hundreds of contributors, Unleash is the most trusted open-source feature flag platform. This provides full transparency into the Unleash source code, and features being developed. It also removes the vendor lock-in, because you can always switch to the Open-Source version.

Designed for large teams with complex needs, Unleash truly scales across the enterprise, no matter how complex the setup.

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<p>Pricing model</p>


<p>Monthly-active-users (MAUs)<br />
<a style="color: #817afe;" href="#pricing-calculator">Explore Cost calculator</a></p>


<p>Service Connections<br />
<a style="color: #817afe;" href="#pricing-calculator">Explore Cost calculator</a></p>


<p>Open-source</p>


<p>Hosting Options</p>


<p>Single-tenant SaaS instances</p>


Unleash’s SaaS offering is built on a single-tenant architecture, providing each customer with dedicated infrastructure, including their own database, for enhanced security and isolation.

<p>Advanced PII Protection</p>


Unleash’s unique architecture enables you to ensure that PII used for flag context evaluation never leaves your cloud or data center.

<p>Flag portability</p>


Unleash was architected to allow flags to be reusable across projects. Projects in LaunchDarly are almost like separate accounts limiting easy adoption organization-wide.

<p>Cross-team collaboration &amp; change management</p>


With Unleash, all projects are open by default, with access restrictions as needed. Developers can easily suggest changes to other projects similar  to the way PRs work in git. Unleash also enables organizations to standardize release plans, segments, and context fields across projects, making it more suitable for large organizations where multiple teams work on separate parts of a large system.

<p>Comprehensive change requests</p>


With Unleash, you can change multiple flag configurations in one atomic change.  

<p>Validate complex changes before pushing live</p>


Unleash Playground lets you test any changes, including change requests, before rollout.

<p>Targeting Extensibility</p>


If you can build it, you can target flags using it with Unleash custom strategies.

<p>Recommended for Engineering teams by Thoughtworks</p>


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Unleash

LaunchDarkly

<p><span style="font-weight: 400;">No, Unleash charges primarily by user.  Additionally, 53 million monthly API requests are included with our pay-as-you-go Cloud hosted offering and even more with our annual plans.  If you need more than 53 million monthly API requests with our pay-as-you-go offering, you can purchase more at a bundled rate of $5/million requests.</span></p>


Does Unleash charge for MAUs or Service Connections?

<p><span style="font-weight: 400;">LaunchDarkly charges based on monthly active users and how many application instances you run.  The more users or replicas of your applications, the higher the price. Unleash has a simple pricing model based primarily on users with a generous traffic allowance at no extra cost.  </span><a href="https://www.getunleash.io/pricing"><span style="font-weight: 400;">Find out how much you can save over LaunchDarkly by speaking to sales.</span></a></p>


Why is LaunchDarkly so expensive?

<p><span style="font-weight: 400;">Absolutely. Unleash was designed to run anywhere: our managed SaaS, private cloud, or on-premises.</span></p>


Can I run Unleash in my own cloud or on-prem?

<p><span style="font-weight: 400;">We think that Unleash is simply the best platform for enterprise experimentation. The reason is that we are super flexible and can integrate with any analytics system to meet the diverse needs of different teams. What we have seen working with some of the largest companies in the world is that one size doesn&#8217;t fit all when it comes to analytics – some teams prefer Google Analytics, others rely on telemetry data streamed to Grafana, and some use data warehouses. Unleash empowers engineering and product teams to integrate with their favorite analytics provider, giving them the freedom to work how they want. Our SDKs makes it easy to send experimental impression data to any system, streamlining experimentation in addition to all the other feature management use cases we support.</span></p>


Does Unleash support A/B testing and experimentation?

<p><span style="font-weight: 400;">Unleash was architected from the ground up to protect your PII and we make it possible so that no user data ever leaves your premises. For the strictest data privacy use cases, Unleash gives you the flexibility to control where user data is processed. If you’re using server-side SDKs, user data never leaves your infrastructure. For client-side SDKs, you have options: you can self-host Unleash or just Unleash Edge to ensure all user data stays within your environment. For client-side SDKs when using the Unleash Cloud or Unleash Enterprise Edge, data is only retained in short-term cache and never stored long-term. This means you can design your feature flagging setup to align with your privacy and compliance needs while still benefiting from Unleash&#8217;s powerful capabilities.</span></p>


How does Unleash handle PII compared to LaunchDarkly?

Join 100,000+ developers who’ve gained complete control over their software releases. 

Mark Quigley

"We flipped the most important flag we could when we went from our in-house system to Unleash. Right away we found that  it was scalable, highly performant, resilient out of the box.
And Unleash ended up being 1/3 the cost of our homegrown feature flag solution, while also improving the reliability and scalability of our platform."

Norbert Borecki

"Unleash gave us the flexibility to manage feature rollouts across multiple services and environments, allowing us to scale without fear of major rollbacks."

Wael Mashal

"In our complex case and architecture, Unleash has proven actually to be the perfect fit for us. And when we decided to use Unleash, we made the right decision. It's provided us with the necessary tools, flexibility, and compatibility to support our pursuit of cloud-native excellence."

Truls Jørgensen

"Before 2016, NAV used to take pride in 4 huge, coordinated, massive releases per year. As of today, this number is over 1400 times per week, which translates roughly to once every other minute.”

Jason Crow

"What appealed to us about Unleash was the central control via the Admin Console, as well as the security posture of running the entire infrastructure under our own architecture and standards”

Unleash vs LaunchDarkly

As the largest open-source feature flag platform, Unleash gives developers tools to be efficient and love their jobs, while enterprises get market-leading data governance, security, and compliance controls.

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<div><div style=display:flex;margin-bottom:1.6rem><div><img src=https://cdn.getunleash.io/uploads/2024/06/negative-dark-icon.svg></div><div><h4>Downtime risk</h4>Flaky features cause downtime. On average, application downtime costs organizations $400,000 per hour, and more than half of organizations face unexpected downtime every two months.</div></div><div style=display:flex;margin-bottom:1.6rem><div><img src=https://cdn.getunleash.io/uploads/2024/06/negative-dark-icon.svg></div><div><h4>Reduced Innovation</h4>When developers are forced to use tools and processes they hate, like infrequent high-stakes releases based on complex branching strategies, innovation is reduced by 50%.</div></div><div style=display:flex;margin-bottom:1.6rem><div><img src=https://cdn.getunleash.io/uploads/2024/06/negative-dark-icon.svg></div><div><h4>Home-grown solutions don’t scale</h4>Many organizations attempt to solve downtime risk and reduced innovation by building a feature flag solution in-house, but often, features and UX are lacking, the maintenance burden is high, and reliability is low. Under such circumstances, release velocity suffers, and the best talent starts to look elsewhere.</div></div></div>

Unleash gives developers tools to be efficient and love their jobs, while enterprises get market-leading data governance, security, and compliance controls.

<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> Open-source. Play around as much as you’d like.<br />
<br />
<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> Built by devs for devs with intuitive DevEx.<br />
<br />
<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> Includes all feature flags capabilities you’d expect. And many you don’t.

<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> RBAC, audit, change requests. <br />
<br />
<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> No data leaves your environment. <br />
<br />
<img src="https://cdn.getunleash.io/uploads/2024/05/check-dark-icon.svg" style="margin: -0.2rem 0.2rem;" /> Supports Air-gapped and Fed Ramp requirements.

Explore features

Explore features like rollout strategies, instant rollback, and kill switches 

Explore features like feature flag automation, trunk-based development, and tech-debt management

Explore features like A/B/n testing, cross-session stickiness, and analytics integrations

Explore features like self-hosting or single-tenant private instances, SSO integration, RBAC and Audit logs.

Hosted, or self-hosted: it’s your call. It’s quick and easy to set up. Get started in 2 steps with the functionality you need to gain complete control over your software releases.

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Vibhu Srivastava

"With Unleash, we could safely manage feature releases in our monolith, knowing that we could toggle features off instantly if something went wrong, minimizing downtime and risk."

Misha Karpenko

"We really like your design philosophy. It gives us peace of mind, because the end user data doesn’t leave our application context."


Henning Støverud

"By deploying more frequently, the size of each deployment has been drastically reduced and new functionality can be tested early and more gradually thanks to Unleash and feature toggles."

Why the largest enterprises in the world choose Unleash

A Guide to Feature Flags

Trunk-Based Development with feature flags