Two Android apps I recommend

[Tdarcos]

1. JBak2 keyboard. The really big problem with the standard onscreen keyboard is the lack of cursor controls such as Home, End, and arrow keys. This app provides a replacement keyboard which is reprogrammable, and includes several optional keyboards as well as customizing to change keyboard height if you think it's too tall. It has some problems, but having all 4 arrow keys and delete as well as the standard backspace solves a lot of frustration.

2. UnicodePad. Allows you to find any unicode symbol or emoji and insert them via copy/paste. Search by symbol name or hwx number. This product is open source: https://github.com/Ryosuke839/UnicodePad/

Both are free with no ads, and can be found in Google Play Store.

[Ice Cream Jonsey]

How's Caltrops looking on your Android?