Spry Simulation - Microsoft Excel add-in which enables system dynamics, discrete-event and Monte Carlo simulation in modern spreadsheets, especially with small to medium-sized simulation models and for a proof-of-concept tasks.

Student Loan Hero - The smartest way to pay off student loans

AnyLogic - AnyLogic has changed simulation modeling and expanded its application into complex business environments. The unmatched flexibility of multimethod modeling allows users to capture the complexity of virtually any system, at any level of detail.

WeFinance - Crowdfunded student loans

Netron - Open-source visualizer for neural network, deep learning and machine learning models.

Incredible - All your personal debt managed, in one app