I am 58 years old and my vision is far from perfect. I have fingers on my hands, not matches, so I designed this keyboard for myself. If you are under 35 and have no vision problems, please do not install it. You will need it later. But maybe now it's a good trick for your parents. This ergonomic keyboard for Android allows 100% of your phone's screen to be used for large keys, making it indispensable on small screen devices and for big fingers (100% is not an advertising slogan: it is literally 100%). Swipe up to switch to 100% display mode.
Required Android Versions : Jelly Bean [4.1–4.3.1] - KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]