Removing iMessage Apps
CalcKey is an iMessage only app, which means that is does not
appear on the home screen of your device.
You can remove any of your iMessage apps that are installed on your device by;
Instructions
1 - Open Messages
Open the Messages app. iMessage apps can only be found in the default "Messages" app made by Apple, on your iPhone or iPad. They are not available in any third-party messaging apps or social media apps.
2 - Start a conversation
Tap on one of your existing conversations in the Messages list, or start a new one and enter the contact details of one of your friends that also uses iMessage.
3 - View iMessage Apps
Tap on the "iMessage Apps" icon, between the camera button and the message field. This will open the iMessage Apps tray and show you some of the other iMessage Apps that you currently have installed.
4 - Open iMessage Apps list
Scroll horizontally along the iMessage Apps list until the "More" button. Tap the "More" button to open the full list of iMessage apps currenlty installed on your devices.
5 - Remove the app
Scroll down the list of iMessage apps that you have installed until you find the one that you would like to remove. Swipe from right to left along the app in the list, until you see the "Delete" button. Tap delete to remove the app.