Who Uses This Software?

From individuals working on their project(s), agencies working for their clients to big companies with up to several dozens of developers.

Average Ratings

14 reviews
  • Overall 5 / 5
  • Ease of Use 5 / 5
  • Customer Service 5 / 5
  • Features 5 / 5
  • Value for Money 5 / 5

Product Details

  • Starting Price US$20.00/month
  • Pricing Details Autoscale and pay only what you use.
  • Free Version Yes
  • Free Trial Yes
  • Deployment Cloud, SaaS, Web
  • Training Live Online
  • Support 24/7 (Live Rep)
    Business Hours

Vendor Details

  • Rendered Text
  • https://semaphoreci.com
  • Founded 2009

About Semaphore

The fastest CI/CD solution there is. Easily automate the process of software testing in the cloud and deploy more often in a unified workflow. Automate any continuous delivery pipeline. Get complete control with customizable stages, parallel execution, control flow switches, secrets and dependency management. Autoscale and pay only what you use.

Semaphore Features

  • Build Log
  • Change Management
  • Configuration Management
  • Continuous Delivery
  • Continuous Deployment
  • Debugging
  • Permission Management
  • Quality Assurance Management
  • Testing Management

Semaphore Most Helpful Reviews

Semaphore 2.0 - What a blast of speed

Reviewed on 01/02/2019
Computer Software, 51-200 Employees
Used the Software for: 1-5 months
Reviewer Source 
5 / 5
Ease of Use
4 / 5
Features & Functionality
5 / 5
Customer Support
5 / 5
Value for Money
Likelihood to Recommend:
Not Likely Extremely Likely

Comments: We've gone from full, congested CI pipelines, with our machines positively clogged with teams waiting for slow or large test suites to finish consuming all the available slots on deploy day... Then having machines sit idle for hours on end during the rest of the week. This particular scheduling nightmare has since disappeared, and even test suites which can be optimised no further have benefited from a massive boost in speed.

Pros: The speed. Good heavens, the speed. We have a number of projects, some of which involve some rather extensive database manipulations involving using schema. Unfortunately, this precludes parallelising our test suite, which has led to a steadily growing issue with slow specs. Whilst we optimised the specs as much as we can, reaching the point where a test run takes in excess of an hour and a half is still a very dour prospect. Enter Semaphore - we tried it out as an experiment, and have quickly moved some of our bulkiest projects over. The hardware is a massive improvement, test run times have been halved, and in some cases do even better than that. Better still, their support staff and engineering team are... Frankly, stunning. Support queries, even involving challenging and unusual setups are rapidly responded to, and often get passed to engineers and similar who are able to help you - unlike certain other CI providers who leave you hanging out with Bill from customer service, a nice enough bloke, but lacking the technical competence to actually solve issues. Whilst there are still some features that they are missing (auto-cancellation of specs, for example), they're rapidly building them out at an impressive pace - I have no doubts that they'll have every reasonably conceivable feature and then some in the near future. Finally, bare-metal hardware and the bare-bones linux vms with their helpful array of docker images for services are fast, easy and simple to use.

Cons: Semaphore 2.0 is still fairly new, so some of the Semaphore 1 features have yet to make the jump. In addition, there are some nice to have features they didn't have when we signed up - but they took the feedback to heart and kept us up to date on their progress building them o

Vendor Response

by Rendered Text on 05/02/2019

Thank you very much for the review. We really appreciate it!

Incredible Speed, Simple UI, Best-in-class Customer Support

Reviewed on 31/10/2018
Sebastian S.
Founding Team Member
Computer Software, 2-10 Employees
Used the Software for: 6-12 months
Reviewer Source 
5 / 5
Ease of Use
5 / 5
Features & Functionality
5 / 5
Customer Support
5 / 5
Value for Money
Likelihood to Recommend:
Not Likely Extremely Likely

Comments: If you are picking a CI tool, pick Semaphore. If you are considering moving from an existing CI tool, or even if you aren't, strongly consider Semaphore. Our experience has been nothing but positive, and the support alone sets it apart from the pack.

Pros: - Builds are FAST. The bare-bones Linux container used has plenty of power and our builds are completing 2-3x or more faster than TravisCI, JenkinsCI, and equivalents.
- Building in 'Secrets' (config files, SSH keys, environment variables etc) is straightforward and really powerful
- UI is simple and intuitive
- Customer Support has got to the best I have encountered with a cloud provider of any kind. Seriously, we have seen 2 hour response times on a basic support plan, including custom gists being written for us for specific use cases turned around in that time. I am so impressed at the speed and quality of support and I cannot imagine competitors are even close in this regard.

Cons: - Docker image caching on a dedicated disk would speed up our Docker builds substantially, but other than that I have no complaints or suggestions.

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