Many years ago, we introduced the Signup App for iPhone and Android. We retired the Signup app in November. However, the web version of that app was still available – https://signupapp.runsignup.com/. We will be taking that offline as well next week. As stated in the retirement blog post, there was very little use of the app and customers far prefer the browser based registration, and our very customizable expo features.
In addition, we had made available a public API for registration – basically what we used to develop the Signup app. Since the publication of that, there has been very little use, and when it was used, it was not used well. We will also be retiring that API next week as well.