Why traders still pick MT4 over newer platforms
MetaQuotes stopped issuing new MT4 licences a while back, steering brokers toward MT5. Still, most retail forex traders kept using MT4. The reason is not complicated: MT4 has twenty years of muscle memory behind it. Thousands of custom indicators, Expert Advisors, and community scripts run on MT4. Switching to MT5 means rewriting that entire library, and the majority of users don't see the point.
I spent time testing MT4 and MT5 side by side, and the differences are marginal for most strategies. MT5 adds a few extras like more timeframes and a built-in economic calendar, but the core charting feels about the same. For most retail strategies, MT4 is more than enough.
Setting up MT4 without the usual headaches
The install process is quick. The part that trips people up is getting everything configured correctly. Out of the box, MT4 loads with four charts crammed into one window. Shut them all and open just the instruments you actually trade.
Templates are worth setting up early. Set up your go-to indicators on one chart, then right-click and save as template. Then you can load it onto other charts instantly. Small thing, but over weeks it makes a difference.
Something most people miss: open Tools > Options > Charts and check "Show ask line." By default MT4 displays the bid price on the chart, which can make entries appear wrong by the spread amount.
MT4 strategy tester: honest expectations
MT4's built-in strategy tester allows you to run Expert Advisors against historical data. But here's the thing: the reliability of those results depends entirely on your tick data. Standard history data is not real tick data, meaning gaps between real data points are estimated using algorithms. If you're testing something more precise than a quick look, grab proper historical data.
The "modelling quality" percentage tells you more than the profit figure. Below 90% indicates the results shouldn't be taken seriously. Traders sometimes show off backtests with 25% modelling quality and can't figure out why their live results don't match.
This is one area where MT4 genuinely outperforms most web-based platforms, but it's only as good as the data you give it.
Building your own MT4 indicators
MT4 ships with 30 default technical indicators. Few people use more than five or six. But the platform's actual strength is in community-made indicators built with MQL4. You can find thousands available, spanning simple moving average variations to elaborate signal panels.
Adding a custom indicator is simple: copy the .ex4 or .mq4 file into your MQL4/Indicators folder, restart MT4, and you'll find it in the Navigator panel. One thing to watch is quality control. Free indicators are hit-and-miss. Some are well coded and maintained. Many stopped working years ago and will crash your terminal.
Before installing anything, look at when it was last updated and whether people in the forums have flagged problems. A poorly written indicator won't just give wrong signals — it can freeze the whole terminal.
Managing risk properly inside MT4
MT4 has a few native risk management tools that the majority of users never configure. The most useful is maximum deviation in the order window. This defines the amount of slippage you'll accept on market orders. If you don't set it and the broker can fill you at whatever price the broker gives you.
Everyone knows about stop losses, but trailing stops are overlooked. Right-click an open trade, pick Trailing Stop, and define the learn here pip amount. The stop adjusts when the trade goes in your favour. Not perfect for every strategy, but if you're riding trends it removes the urge to sit and watch.
These settings take a minute to configure and the difference in discipline is noticeable over time.
EAs on MT4: what to realistically expect
Expert Advisors on MT4 attract traders for obvious reasons: set rules, let the code trade, walk away. In reality, the majority of Expert Advisors lose money over any extended time period. EAs advertised with incredible historical results are usually fitted to past data — they look great on past prices and fall apart the moment market conditions change.
That doesn't mean all EAs are useless. Some traders code their own EAs for specific, narrow tasks: time-based entries, managing position sizing, or taking profit at set levels. These smaller, focused scripts are more reliable because they execute mechanical tasks without needing judgment.
When looking at Expert Advisors, use a demo account for a minimum of two to three months. Running it forward in real time tells you more than backtesting alone.
MT4 on Mac and mobile: what actually works
MT4 is a Windows application at heart. Running it on Mac deal with a workaround. Previously was running it through Wine, which mostly worked but introduced visual bugs and the odd crash. Some brokers now offer macOS versions built on Wine under the hood, which are better but remain wrappers at the end of the day.
On mobile, available for both Apple and Android devices, are surprisingly capable for keeping an eye on your account and making quick adjustments. Doing proper analysis on a 5-inch screen isn't realistic, but closing a trade while away from your desk has saved plenty of traders.
Check whether your broker offers real Mac support or a compatibility layer — it makes a real difference day to day.