Test Mobile Applications
Learn about testing recommendations for Android and iOS developers.
Square Reader SDK and the Point of Sale API are not currently supported in the Square Sandbox and Square hardware only works in Square-supported countries. As a result, mobile developers of in-person applications must test in production with real credit cards. If you are an international developer, see the testing in unsupported regions recommendations. If you are a developer trying to build with Square in-person mobile solution in supported regions, you should: