The cost really depends on the kind of taxi app you want to build. If you’re going for a basic version with essential features like booking, tracking, and payments, the investment stays fairly reasonable. But suppose you want something more advanced, like an Uber-style system with route optimization, wallets, subscriptions, or multi-city management. In that case, the cost will naturally be $20,000 to $50,000, as it requires more development time and greater complexity. Once the right taxi booking app development team understands your feature list and business model,  they'll prepare a clear, transparent estimate so you know exactly what you’re investing in.