These all now fully support iOS 12.1 and Apple's latest devices, including the new 11" and 12.9" iPad Pro models, and the iPhone XR, XS and XS Max.
We have also added "dark mode" support to Special Numbers (already supported by the other apps). Dark mode is where the background is black and text white instead of the other way round, and available on iOS 11 and later via the device's Settings > General > Accessibility > Display Accommodations > Invert Colours > Smart Invert.
Dark mode isn't just useful in low light conditions, or as a way to reduce battery drain on newer devices with OLED displays: it can be very beneficial for some children with visual impairment. Our apps automatically detect when dark mode has been enabled, and adjust their colour scheme accordingly, as shown here in Special Words.