PackPilot builds a packing list that matches the specific trip rather than handing you a generic template. Tell it where you are going, how long for, and what you will be doing, and it generates the checklist from that. Items are sorted across your bags so you know what goes in the carry-on and what goes in the hold, and the list tracks what you have actually packed. Panic Pack Mode strips it to essentials when you are leaving in ten minutes. Ten languages. Free on Google Play.