Most packing apps hand you an empty list. ManDanDan fills it in for you, then makes sure you actually packed it. Pick a scenario and the list builds itself: clothing scaled to your trip length, rain gear or warm layers from your destination's weather, passport and plug adapter if you're crossing a border. Every automatic item tells you why it's there. Then it follows you out the door: 200m from home with something unpacked, your phone stops you. No account, no ads, no subscription.