Time Terminal 2.x requires your device is running iOS 7 or higher. if you need to upgrade iOS on your device, please follow the instructions provided by Apple here: https://support.apple.com/en-us/HT204204
Closing Time Terminal
The first step in upgrading Time Terminal on your iOS device is to close the Time Terminal App if it is currently running.
- Double press the Home button on your device.
- The Home button is located near the charging port of the device.
- Slide the app switcher left or right until the screen image of Time Terminal is visible.
- Swipe up on the Time Terminal screen image to close the app.
- Slide the app switcher left or right until the image of your Home screen is visible and tap on it to go to your Home screen.
- You can also Press the Home Button to return to the Home Screen.