Best paper trading apps for market replay (2026)

We track 4 simulators for market replay. They are ordered by how completely their details are verified from provider pages, not by quality or payment.

Of these, 3 are listed as free (TradingView Paper Trading, NinjaTrader Simulator, Tradeskill), 4 use real-time or live data at least partly (TradingView Paper Trading, NinjaTrader Simulator, Tradeskill, AlgoTest), and 1 can be used without a brokerage account (Tradeskill).

The most completely documented options here are TradingView Paper Trading (price: Free (any TradingView plan); data: US stocks Cboe feed by default; CME futures 10-min delayed unless real-time bought; crypto real-time; starting balance: $100,000 default (per StockBrokers.com via SnappChart)); NinjaTrader Simulator (price: Free platform and simulator (paid platform licences optional); data: Live streaming for 14-day trial, then delayed unless data subscription or funded account; starting balance: $50,000 (per NerdWallet)); Tradeskill (price: Free forever (per site); data: Live prices (per site); starting balance: $20,000).

How to choose: decide first whether you need the same market you will trade for real (e.g. NSE F&O vs US stocks), whether delayed quotes are acceptable for your style (they are fine for long-term practice, poor for day trading), and whether the app forces you to open a brokerage account. Each linked listing shows its sources so you can confirm the details.