Your tool is very useful, though I have some usability suggestions.
1. It would be nice to have the option to change all addresses in search results to a given value. Usually few results are found, so this will save time.
2. Currently changing values is very tedious due to the way the Android keyboard works; you need to collapse the keyboard then pick a value from the "region" drop box.
Instead, please select 4 bytes as the default, since programmers usually use int for any numeric value. For the "value" field, don't show the usual keyboard, but implement your own compact keyboard, similar to Game Killer.
Thanks