This is an app for Hong Kong students to prepare for the HKDSE Mathematics (compulsory Part) Examination. Students can find the formulas (with graph) and theorems easily in the app and bookmark the page they want to revise. The app support English, traditional Chinese and simplified Chinese.

Main categories are list below:
Formulas and Identities
Exponential Functions and Logarithmic Functions
Errors
Percentages
More about Polynomials
Equations and Complex Number
More about Graphs of Functions
Variations
Sequence
More about Trigonometric
Mensuration
Coordinates Geometry
Equations
Permutation and Combination
Standard Deviation