Practice trading with real market conditions, zero financial risk
Buy and sell 50+ stocks against a virtual balance you set yourself. Orders, fills and open positions behave the way a real brokerage would, with none of the downside.
Live pricing from financial data providers, so a position you open tracks the same market a funded portfolio would.
See where you actually stand: holdings by weight, gains realised and unrealised, and how the account has moved over time. Keep up to three portfolios running to compare approaches side by side.
Beginner-friendly articles explain stock market fundamentals, trading strategies, and market concepts. Build knowledge while you practice.
What is Paper Trading? · How to Read Charts · Order Types · Trading Strategies · Dividends · Options Trading · Browse all guides
No signup, no credit card, no complications
Get the free app from the App Store. Android version coming soon.
Choose your virtual balance amount. No account creation required.
Buy, sell, and track 50+ stocks with real market prices.
Build real skills before you risk real money
CustomStocks is a free stock market simulator that lets you practice trading with virtual cash and real market prices — no brokerage account, no deposit, and no real money at risk. It's built to help you learn how the market actually works by doing, not just reading. Brand new? Start with what a stock is and how stock paper trading works.
Paper trading is the safest way to build the habits that matter — reading a chart, choosing the right order type, sizing a position, and sticking to a plan when a stock moves against you. Every trade in the app is a rep you didn't pay for with real losses, so mistakes turn into lessons instead of setbacks.
Your practice portfolio stays on your device — no account to create, no personal data collected, and no ads. CustomStocks is educational paper trading only and is not financial advice. When you're ready to go deeper, the free Learn library covers everything from trading strategies to the psychology of trading. Download free on iOS today — Android is on the way.
Buying power comes before the buy — rehearse the step most simulators skip
Before you can buy a single share, the money has to already be sitting in the account. That is what buying power means: the cash you can actually trade with right now. Beginners often learn to read a chart long before they understand why an order gets rejected for insufficient funds, or why the balance on screen is not always the balance they can spend.
CustomStocks is connected to CustomBank, the banking simulator from the same studio. You can move your practice balance between the two apps, so the whole sequence — money sitting in checking, money moved across, money turned into positions — becomes something you rehearse rather than something you read about. Watch what it does to your buying power before you place the next order.
It is virtual money on both sides. There is no brokerage account, no bank connection, no deposit and no real funds — nothing leaves your device, and nothing here is financial advice. Both apps are free on iPhone. New to the idea? Start with how stock paper trading works, then try sizing a trade with the position size calculator.
Everything you need to know about stock paper trading
No! CustomStocks is a paper trading simulator. You start with a virtual balance (default $10,000) to practice trading without any financial risk. No credit card or payment required.
No! The app works completely offline. You can start trading immediately after downloading. No personal information required.
50+ stocks including Apple (AAPL), Tesla (TSLA), Amazon (AMZN), Microsoft (MSFT), Google (GOOGL), and many more. Real-time prices from financial data providers.
Download CustomStocks free from the App Store, set your virtual balance, and start trading in under 30 seconds. Android version coming soon.
Yes! All prices are real-time market data from financial data providers. You'll see the same prices as real brokerages.
Stock markets have set trading hours. The US stock market is open Monday through Friday, 9:30 AM to 4:00 PM Eastern Time. You can review your portfolio and place practice orders anytime, but trades execute during market hours.
Default is $10,000 (recommended for learning), but you can choose any amount from $100 to $1,000,000 during onboarding.
Yes! Go to Settings to reset your portfolio and start fresh with your original balance. Perfect for trying new strategies.
Market orders, limit orders, and stop orders. Learn the difference in our guide on stock order types.
17 comprehensive guides covering stock paper trading basics, chart reading, order types, P/E ratios, trading strategies, market hours, dividends, ETFs, market cycles, fundamental analysis, options, sector analysis, earnings, and taxes. Visit our Learn section for all free guides.
Absolutely! Our guides start with the very basics — what paper trading is, how stock charts work, and what a P/E ratio means. No prior knowledge needed.
The Price-to-Earnings ratio measures a stock's price relative to its earnings per share. It helps you evaluate whether a stock might be overvalued or undervalued. Learn more in our P/E ratio guide.
Yes! The app works offline by default. Your trading activity stays on your device. We never access or transmit your portfolio data.
Never. We don't collect personal information and we never sell user data to third parties. See our Privacy Policy for details.
CustomStocks is available now on the App Store for iOS. The Android version is in development — notify me when Android launches.
Yes! 100% free with no ads, no in-app purchases, and no hidden fees. Our mission is to make stock market education accessible to everyone.
Yes. You can move your practice balance between CustomStocks and CustomBank, the banking simulator from the same studio, so funding an investment account becomes something you rehearse rather than read about. It is virtual money on both sides: no brokerage account, no bank connection, no real funds, and nothing leaves your device. Both apps are free on iPhone.
No. CustomStocks works entirely on its own with whatever starting balance you choose. CustomBank simply adds the step before the trade, letting you practice how money reaches an account and what that does to your buying power, if you want to learn that part too.
Android version coming soon — get notified when it launches
Notify Me About AndroidYour data stays on your device
iOS on the App Store
Built for both platforms
Free forever, no in-app purchases
Part of the Custom Apps family — privacy-first tools for your finances