"Geometric sequences" is the easiest way to learn and practice methods about geometric sequences.
The first part - I UNDERSTAND ! - shows definition and examples, calculation of any term and sum of first terms !
The second part - I TEST MYSELF ! - lets you experiment calculations with geometric sequences, including interests calculations.
Exercises and problems are randomly generated, so every time you run the app, they are entirely new !
The app is also linked to Game center, so you can share your results and challenge your friends!