Can I buy the same system for MT4 and MT5?
If a product supports both platforms, its page shows separate MT4 and MT5 options with the corresponding links.
If you need an MT4 Expert Advisor, this page groups AstraMQL products that support MetaTrader 4. Product pages help you understand the algorithm purpose and continue to the right purchase version.

PatternGuard VWAP Trader — an MT4 and MT5 Expert Advisor built around VWAP, market structure, and higher-quality entry zones.

Gold Wolf EA — an MT4 and MT5 Expert Advisor for automated XAUUSD trading, built for traders who want a more systematic way to trade gold.

Dream of the Golden Wolf — an MT4 and MT5 Expert Advisor that helps automate Gold / XAUUSD trading through clear and adjustable trading logic.

Golden Wolf Grid Pro — a grid Expert Advisor for MT4 and MT5 designed for automated XAUUSD trading during market phases with repeated pullbacks.

Golden Wolf Game Changer — an MT4 and MT5 Expert Advisor for traders who want to automate trend scenarios and remove unnecessary emotion from execution.

MA EMA Cross Risk EA — a free Expert Advisor for MT4 and MT5 that automates an MA/EMA crossover strategy with risk calculation and visual trade levels.
If a product supports both platforms, its page shows separate MT4 and MT5 options with the corresponding links.