The cost to develop a sports betting app in 2025 depends on several factors, including app complexity, features, platform (iOS, Android, or both), design quality, and the development team's location. On average, a basic app may cost between $20,000 and $40,000, while a mid-level app ranges from $40,000 to $100,000. For advanced apps with features like real-time odds, live betting, and AI-based predictions, the cost can exceed $100,000 and go up to $300,000 or more. Other important cost factors include third-party integrations, backend infrastructure, security measures, legal compliance, and ongoing maintenance.