For simple blockchain apps, a company charges $40,000–$60,000, $80,000–$150,000 for semi-complex blockchain Solution, and $150,000–$300,000+ for complex blockchain solutions. Check their pricing and engagement models before making any call. The charges mentioned here are based on data available online and experts' suggestions; the actual costs for blockchain development or the charges by the company depend on different factors. It can be technical aspects, app complexity, industry compliances, cost for third-party tools implementation, and development methodology.