Global Bill Splitting Apps Market Size, Share & Strategic Growth Analysis – By Platform (iOS, Android, Web-Based), By Deployment (Cloud-Based, On-Premises), By Application (Peer-to-Peer Payments, Group Travel, Roommate Expense Sharing, Corporate Expense Management), By End-User (Individuals, SMEs, Enterprises), By Region, Competitive Landscape, Digital Payment Trends, Investment Insights & Forecast 2025–2034