The RLM-12PX calculator is an extensive set of tools and enhancements inspired in the real HP-12C Platinum calculator. It works in the same way, but expanded with 15 digits precision, 100 store registers, 1000 program steps and a complete set of menus to handle almost any financial and business problem (toggle tapping the "OPT" key). Also, the Display was expanded to show all the Stack registers and, in landscape orientation, the content of the financial registers, storage registers and program memory.

Finance Account Balance Amortization Bonds Price & Yield Black-Scholes Options Depreciation Interest Rates Time Value of Money	Business Bill-Tip-Split Break-Even Date / Time Currency Exchange Percents & Margins	Cash Flows Equal Periods Unequal Periods
Statistics (X,N) List-> One-List Statistics (X,N) List-> Two-Lists Statistics (X,N) List-> Curve Fitting (X,Y) List-> Statistics (X,Y) List-> Curve Fitting Probabylity	Scientific Angles & Polar Logarithm Number Alteration Triangle Solution Trigonometry & Hyperbolic	Convert Angles & Polar Currencies Interest Rates Units
Program	Solver	Utilities General Settings Storage Registers Memory Content (Date,Trx) List Editor (Date,CF) List Editor (X,N) List Editor (X,Y) List Editor Program Editor Solver Equation Editor Units Database Editor

Once the app is installed for the first time in your device, you have 30 days of a fully functional "Free Trial". After, to continue using the app, the store view is shown asking to do a one time payment for lifetime.