Reflecting on my experience and based on what I've observed, Phillip Securities primarily offers MetaTrader 5 (MT5) as its main trading platform. They possess a full MT5 license, meaning they provide the official, fully supported MT5 environment—this is meaningful, as the MT5 platform is known for its advanced analytical tools, algorithmic trading capabilities, and multi-asset support. I did not find evidence to suggest that they offer MetaTrader 4 (MT4) or cTrader. The quality of their MT5 infrastructure feels robust, with reported average execution speeds around 242 milliseconds, which is reasonable for institutional-grade platforms. This aligns with my own expectations of technology-focused Japanese brokers—Phillip Securities is noted in several user reviews for its reliable electronic trading systems and advanced features. However, it’s important to stress that while MT5 is extensively used and generally secure, not having MT4 or cTrader may limit options—especially if you're accustomed to a specific platform interface or particular EAs/scripts from the MT4 ecosystem. For me, the presence of a formally licensed MT5 instance means I can be reasonably confident in the platform’s legitimacy and technical support, but I still prefer to double-check all conditions myself before committing significant capital.