They are some circumstances where your app is not updated and you are not able to see the latest changes, fixes, or features introduced. Here are a few things you can check from your end on how to check the version of the app on your phone.
How to check app version on Android Devices?
My app is not up to date. How can I update?
If you realize that your app is not up to date, search for Mudah.my at your Google Play Store or Huawei app gallery and select update, and if you wish to download a fresh copy, follow the instructions here.