OK, here's an early beta of the "pro"/donate version. It's buggy, sometimes you have to hit the red button twice for it to register the click, and the strobe doesn't turn on the "flash in use" view, and it may have various other issues including some that force close the app.
But it should work well enough to see what I'm going for. If you have any suggestions on making it better, let me know. I'm almost done and can't spend a ton of more time on it, but can tweak it here or there.
For morse code, tap the 'M' and type some text in the box, then click red button. You can stop by clicking red button again.
For strobe (don't be give yourself a seizure

) click S, and enter a number in the box and click red (you can stop by clicking red again. I'm not sure how fast this thing can strobe, but I limit it to 100Hz. I doubt it even goes that fast but I'm not sure.
To go back to normal mode, click 'S' or 'M' again to hide the text field.