Definition: The mobile test pyramid is a four-layer model for testing mobile apps, created by Daniel Knott. Manual testing forms the largest layer at the base, followed by end-to-end testing, beta testing and a small unit testing layer at the top, mixing manual and automated steps.
So what? Mobile apps depend on devices, sensors, movement and networks that are hard to automate. The mobile test pyramid gives teams a realistic balance of manual and automated testing instead of forcing the classic pyramid onto mobile projects.
Examples: A mobile team planning most of its testing effort as manual testing on real devices, backed by automated end-to-end tests. Adding a beta testing stage so real users give feedback before a full release.