The price to create an app with minimal features for iOS, Android, and web admin that is comparable to Amazon Alexa might be anywhere from $15,000 to $50,000. However, a number of variables, such as the following, affect the final cost: Features: How many and how sophisticated of features you wish to include. Platforms: The cost of developing new platforms, such as wearables or smart speakers, will go up. Development team: The cost may vary depending on the developers’ location, size, and experience. Testing & QA: Extensive testing to guarantee functionality and performance may raise the final cost.