When you accidentally touch a button, there is no way to cancel the entry.
I suggest adding a cancel button or the possibility of adding a message like Are you sure you add this item?
The app has the functionality to delete the last captured feature. By default, the user has 6 seconds to delete the feature, but this time/property (undoThreshold) can be modified in the project JSON. With this, there is no need to have an undo button.
Retrieving data ...