Adrian Allen

Founder - creating skill-based apps

About

Developer with a background in economics. I build systems focused on learning, decision-making and skill development. Currently working on projects like 4xSystems, GuitarPractice and other ideas around interactive training and gamification.

Badges

Tastemaker

Gone streaking

Maker History

4xSystems — Trading GymPractice trading decisions using real market charts
Mar 2026

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Joined Product HuntMarch 26th, 2026

Forums

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6mo ago

4xSystems — Trading Gym - Practice trading decisions using real market charts

4xSystems Trading Gym - Most trading platforms focus on signals or strategies. 4xSystems focuses on skill. Practice trading decisions using real historical charts, test pattern recognition, and improve risk management without risking money. Get a Trader Rating based on your performance, track your progress, and compete in daily challenges. It’s designed to help you build decision-making, discipline, and consistency.