First of all, thank you for making this app! And yes, I was very tired of toggling back and forth while doing any light coding on my phone. There are a few things that need improvement though:1) Some instructions on how to “turn it on” in Settings would be nice. I thought it would be in Keyboards at first but it was not.2) The graphics are off. The colors of the keys are not exactly the same color as Apple’s own keyboard; the fonts are not the same size. I think it is slightly larger than the native keyboards. It is quite noticeable when you switch keyboards.3) The layout could be optimised. It definitely saves time but not by much because the layout difference and one is not used to toggling with the shift key. WolframAlpha has an in-app keyboard that I think is just brilliant. The symbols and signs have their own zone on top of the original keyboard. The toggling is done only in that zone to reveal more symbols. The zone can also be folded away. I would loooove to have that keyboard available. I would also love to contribute to your project if you could link your repo.