We’ve been using the open-source self-hosted version of Unleash for over three years. Before that, we had a very simple in-house solution with many limitations. When searching for a more robust alternative to support our growth, Unleash stood out among the options. The best part is how it allows us to manage dozens of feature flags in a fast and simple way, enabling over 15 tech teams to work independently while implementing their own release strategies. Review collected by and hosted on G2.com.

The main limitation we face today with the open-source version is the inability to create multiple projects to organize and separate our feature flags. This makes it harder to scale the setup as our teams and number of flags grow. Review collected by and hosted on G2.com.

I love how Unleash empowers us to manage feature flags and experimentation across a complex, multi-tenant architecture with multiple programming languages. The API-first approach, robust SDKs for different languages, and the ability to standardize feature flag usage have made it easy for our developers to adopt. It's been especially valuable for running A-B tests, integrating analytics, and safely rolling out or fine-tuning models in production. The move to Unleash Cloud promises to simplify maintenance and centralize our management, which I'm excited about. Review collected by and hosted on G2.com.

One challenge we've encountered is the overhead of managing multiple on-prem Unleash instances, especially before features like progressive constraints were available. Migrating to Unleash Cloud requires careful planning and some custom tooling to ensure a smooth transition without disrupting existing services. While these aren't deal-breakers, they do add some complexity to our workflow. Review collected by and hosted on G2.com.

I liked that they were very down to earth. Was easy to have discussions on capabilities and prices. They were very accommodating in our discussions when it comes to price plans. The company I work for has so many policies and others which makes it hard just to go out and acquire the software. They were very helpful here. We've used the open source for years prior to this and there was no push in us getting an expensive payed plan. They were just trying to help us out to ensure we get the plan that is best suited for us. Which means they're in it for the long run by having happy customers rather than earning a quick buck. Review collected by and hosted on G2.com.

Perhaps just me, we haven't really gotten started with the enterprise version yet, but one thing I miss is having the possibility to add a comment for each time a toggle is changed. So there can be a change log if you want. So if I change the toggle, I can add a comment to why. Review collected by and hosted on G2.com.

Unleash Edge was a good investment for latency Review collected by and hosted on G2.com.

Stability of Edge could be better as we had two incidents. Review collected by and hosted on G2.com.

Unleash has made our release process much more flexible. Feature flags let us deploy changes safely and roll out features gradually. It has become one of the most essential tools in our development, testing, and release workflow. It is now a part of our daily operations.

The Python and React SDKs integrated smoothly into our code and tests.

The Unleash UI is intuitive and provides all the necessary tools to manage the entire feature flag lifecycle, from creation to cleanup.

The service has been reliable with excellent uptime, and the support team checks in proactively, even though we have not had issues.

Unleash does exactly what we need. It is a simple and reliable feature flag management solution. Review collected by and hosted on G2.com.

I don’t have any major complaints, but if I had to mention something, I’d love more advanced querying capabilities, potentially supported by AI-driven insights. Review collected by and hosted on G2.com.

I have used the feature flags with percentage based category to run our application in shadow/staging mode to ungraded to Production.

- Very easy to set up

- Synergy with Java, Kotlin, Spring-Boot Tech stack integration

- No Config change going from Staging to Production Review collected by and hosted on G2.com.

Nothing very critical, the unleash key has to be set with care in the app's secret storage. Review collected by and hosted on G2.com.

My favourite aspect with Unleash is the quality of documentation, broad set of SDKs, extremely stable runtime and hasslefree upgrade and transition to new versions with a growing set of relevant features. Review collected by and hosted on G2.com.

The breadt of features can be a challenge at first, so feature flags as a general concept need to be analyzed for the organization. The UI in Unleash has grown quite abit over the years, making concept and features more complex to get into. Review collected by and hosted on G2.com.

Unleash is one of my favorite vendors to work with. Their support is stellar, the product is so clean and constantly growing and changing, and you can tell that they actually practice solid CI/CD which is really their whole business model. I love that the software I use to better my own organization's processes actually come from a company that is modeling what I'm striving for myself. Their documentation is very easy to understand, and they keep coming out with features that I didn't even know I needed. I would highly recommend Unleash over any of the other tools and companies I reviewed when choosing a feature switching software. Several times, they have approached us for feedback and then taken our recommendations and put them into the app immediately. It was exciting to see our suggestions available to us, sometimes just a few months later. Review collected by and hosted on G2.com.

The only downside I can think of, which is also a positive, is that they come out with new features so often it takes someone fully dedicated to feature management to keep up, maybe even multiple people. It's not the kind of tool you can just set and forget, it has to become an integral part of your organization. Review collected by and hosted on G2.com.

Unleash helps us manage releases accross multiple stages of development for our platform (preprod / prod / ...) The permissions allow us to choose teams other than the development team to test and deploy features into the different environments without intervention of the development team. As a business user, I like that the views are customizable. I don't need to see the lower environments, so I can hide them from view and focus on my own responsibilities. Unleash also allows to document what every feature flag will do (or link through to the documentation (but that is up to the team to always fill this out). Gradual rollout also allows you to do a test run on a limited crowd before full rollout of a feature. Review collected by and hosted on G2.com.

Finding the right feature flag is sometimes hard. Either you have to know the name of the feature flag or be lucky that your keyword is in the description. Unless described in the text, it's not always super clear what the impact of a feature flag will be. A visual guide (before / after) or some sort of preview browser extension could help in this matter. Review collected by and hosted on G2.com.

Unleash was beneficial in these 6 key areas for our team:

1. Reduced release anxiety: By making it easier to roll back changes, it took the pressure off release days.

2. Minimized downtime: This was a key improvement for our stakeholders.

3. Improved our codebase: Unleash gave us the breathing room to refactor and upgrade our aging Java codebase.

4. Gained confidence in releases: Both our team and stakeholders felt more secure with the release process.

5. Decoupled front-end and API development: By putting API features behind feature flags, we could develop and deploy API features independantly of when front-end changes could be made.

6. Self-hosted offering: This made it easy and low cost to evaluate Unleash. Review collected by and hosted on G2.com.

There wasn't a good path to migrate from the self-hosted option to a paid option hosted by Unleash without starting from scratch with feature flags. Review collected by and hosted on G2.com.