Short answer: TenDollarPick generates a 1080×1920 PNG card after you submit. Tap '📸 Share to Instagram Story'.
After building a squad or trip, the result card has a '📸 Share to Instagram Story' button. It auto-generates a 1080×1920 PNG (perfect Story dimensions) with your picks, total cost, QR code, and short code. On mobile (iOS/Android), it opens the native share sheet — choose Instagram. Desktop downloads the PNG + copies a pre-written Korean+English caption to clipboard.