How do I zoom in/out of the chart on my iPhone app? Client Service Team 29 July 2021 02:24 Updated You can zoom in or out of a chart by pinching your fingers together across the screen, in the same way the zoom function operates on standard iPhone Photo applications. Related articles What is a Margin Call? Can I place a trailing stop on the iPhone app? How do I close a trade on MT4 for Android? How do I download the Android app for MetaTrader 4 (MT4)?