Each item has a price mode you can switch per row:
Best — cheapest live buy price found at any terminal in the game right now.
Term — pick a specific terminal from the ones that actually sell it, e.g. if that's where your org buys.
Manual — type in whatever price you're seeing in-game yourself. No live lookup, just tracking.
Set your location at the top to tag every price with how close it actually is — Here, Same moon, Nearby, Same planet, Same system, or the name of a different system entirely. UEX doesn't publish real coordinates (and bodies orbit in real time anyway), so this is a proximity comparison, not a literal distance — Best mode still searches the whole galaxy and just labels the result rather than hiding farther options.
Your item list, quantities, chosen modes, terminals and location are saved only in this browser (localStorage) — nothing is shared with other members or sent anywhere except live price lookups to UEX Corp's public API.