Receipt apps that sync to QuickBooks usually cost a monthly subscription. If you just need your receipts in QuickBooks, a CSV is enough.
QuickBooks Online imports bank-style CSV files with Date, Description and Amount columns. The Pro license exports a QuickBooks-ready CSV layout; the free CSV can also be mapped by hand during import.
Privacy: images never leave your device. Free: 5 receipts per batch. Pro ($19 lifetime): unlimited batches + QuickBooks/Xero CSV layouts.