The Opinion Rewards Receipts screen. Abbildung 2: Bildschirm "Belege" der Google Umfrage-App. Opinion Rewards: Options for uploading a receipt. Your opinions are valuable. Now get paid to share them with the Google Opinion Rewards app. How it works: You answer quick surveys and get paid up to $1. After enrolling, you can earn Hilton Honors Bonus Points for completing your first survey. Guest Opinion Rewards will send you emails inviting you to take.