title: How to update an already distributed app without installing a new version
body: <p>I built a small application that gives real time update on coronavirus cases in my country.</p>
  
  <p>Just recently, the API which I used to get the number of cases, deaths etc changed their endpoints
  e.g from</p>
  
  <pre><code>https://covid19.com/corona/country
  </code></pre>
  
  <p>to</p>
  
  <pre><code>https://covid19.com/v2/corona/country
  </code></pre>
  
  <p>Due to strict restictions by Google on apps relating to covid19,  I couldnt upload to playstore but I built an APK and shared the link to many people to download.</p>
  
  <p>Now, they cant access the number of cases in the app due to a change in the API endpoints.</p>
  
  <p>Please, how do I change just that string URL from my end to have effect on everyone who has the app already without needing to build another apk and making people to download the app again.</p>
  
  <p>I discovered <strong>Firebase Remote Config</strong>, I tried it on my android studio, run the app on my phone, and yes it was working on my device, but How do I get it to work on other people devices with the app already installed.??</p>