Updating an App from the App Store (iPhone) or Play Store (Android) on your mobile device is a simple process, Here is an example of how to update the Iridium GO exec App.
iPhone
In the App Store, tap your Profile icon in the top-right corner or search for Iridium GO exec App.
Tap Purchased, or if part of a family group, first tap My Purchases.
Scroll down to the Iridium GO exec App.
Tap the Iridium GO exec App icon, do not tap the OPEN button.
Tap UPDATE.
Android
Open the Play Store and tap your Profile icon or use the Search function, search Iridium GO exec App.
Tap Manage Apps and device.
Tap the Manage heading and Updates available subheading.
Tap the Iridium GO exec App icon
Tap UPDATE.