Divergence occurs when price makes a new high or low that isn't confirmed by an oscillator like RSI or MACD — for example, price hits a higher high while the oscillator prints a lower high — signaling that underlying momentum doesn't support the latest price move. Regular divergence is commonly read as a warning of a potential reversal; hidden divergence is read as a signal the existing trend may continue.
Divergence is a leading-style signal in a mostly lagging toolkit, but like most single indicators it's more reliable combined with price-action or support/resistance confirmation than traded in isolation.
Next step
Guide
Choosing a Trading Platform: MT4, MT5, cTrader and the Broker's Own
The platform decides which orders you can place, whether your stops survive a closed laptop, and how much you would have to rewrite to leave. What actually differs between the options — and the point where the platform stops mattering and the broker takes over.