How to Manually Update Apps in the Play Store
Step 1. If you’ve told the Play Store not to auto-update apps, you’ll have to do it manually. To manually update an app, you must go to My apps in Google Play, so open the navigation drawer and select it (from under the main Apps & games category).
Step 2. You will be shown a tab view of your apps: the ones currently installed on your device and a master list of every app you’ve ever downloaded. In the Installed list, you’ll see the apps are broken up into categories: Updates, Recently updated and Up-to-date.
Step 3. Apps with updates available are listed at the top. You can choose to install them one at a time or all of them with the Update All button at the top.