Rack Ledger is made by a working vintage reseller who got tired of selling the same piece twice. It's a simple phone app for crosslisters: add what's on your rack, tap Mark sold, and it shows your profit after fees plus every app you still need to delist or mark sold on. One-time price, no subscription, and your items stay private on your own device. Questions? Email rackledger.help@gmail.com and a real person answers within one business day.