App developers need to ensure that their apps are regularly updated in order to keep the app functioning properly and also to remove any bugs or glitches that have been spotted by developers or reported by customers. The frequency of these updates depends on the developer, and as such, if you don’t have the auto-update feature turned on, it is a good idea to keep checking for updates for your installed apps on the Play Store.
You can now tap on the update button to start the updating process for the apps, and depending on your internet connectivity, the apps will be updated to the latest version. To ensure that you keep your apps updated, as outdated app versions tend to misbehave or even cease to work, causing a huge inconvenience. If you find the process of manually updating the apps, a bit cumbersome, you can always turn on the auto-update feature, and the smartphone will handle the rest.