The best receipt scanner app depends on individual needs, use case, and budget. Popular options include Zoho Expense, Expensify, Adobe Scan, Ibotta, Wave, Dext Prepare, QuickBooks Online, and Nanonets. AI-powered OCR receipt scanning tools like Nanonets offer automation, scalability, and accuracy for large volumes of receipts. When selecting a receipt scanner app, consider factors such as paid vs free, recent updates, user ratings, OCR capability, expense categorization, reporting features, integration capabilities, device support, data security, and compliance with regulatory mandates.