MacOSXLinPro is a linear programming engine solver that uses the simplex algorithm and also has an integrated Mixed-Integer Linear Programming (MILP) solver. It supports mixed-integer linear models (0-1 and/or integer decision variables) and up to 50000 decision variables and constraints (limited by the device memory). Additional features include sensitivity analysis reports on variable coefficients and right-hand side, and documents can be transferred via iTunes File Sharing.
Blinged JSON Validator is a free app to validate JSON files with syntax highlighting, whitespace indentation, error messaging, and hotkeys.
