The best alternatives to Semaphore are Heroku, Greenhouse, and Glue42 Desktop Zapier. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Glue42 Desktop Zapier is the first desktop app integration on Zapier! This free tool allows you to integrate desktop Excel with the 1k+ web apps listed on the Zapier platform. Install the Glue42 Excel add-in and then login to Zapier to start zapping between Excel and other apps. Integrate files stored locally or in the cloud.
CI Demon is a macOS application that puts all your CI information directly on your Desktop's status bar. Save time by not having to navigate to slow web apps. Get notifications when a build fails. Trigger re-builds at the click of a button.
Zerber is a CI platform created solely for JavaScript projects. Zerber has a simple yet mighty config file. All builds run in parallel out of the box. And compared to popular CI solutions you don't have to do a heavy config.