I don’t know if this one is avaiilble on the Android market but for the i-phone you can get one called the fly bench. It is made my in-fisherman and has some great basic patterns for fly tying. I don’t know if you are into fly fishing but I loved it. Get the 25 dollar version though, you will save a ton of money in the long run. If you don’t you will be downloading more patterns for .99 and they ad up quick.
Don’t turn on the map overlay on a galaxy phone on the navionics app. It will lock up the app and it will not work. The only way I was able to get it back working was to delete all the map files off the SD card and go through the 2 hour process of downloading them all again and re-setting the app up. When it works, its nice.