Chart Challenge

Pick a level. Beat buy-and-hold with play money.

Play money, not financial advice
Personal bests stay on this device.

Live crypto needs internet · Powered by CoinGecko

Offline levels

About & Credits

Chart Challenge is free. No ads, no IAP, no tracking, no analytics.

Play money, not financial advice. Not a real market.

How to play

Each round is an anonymous window from that level's history. Dates stay hidden until the result. Size buys with 25–100% of cash; sell that percent of shares. Optional stop-loss. Slow / normal / fast / step. Markers show your trades. Score versus buy-and-hold.

Charts

Government close-only series are drawn as line charts (no fake OHLC wicks). Live crypto can use CoinGecko OHLC candles (last 365 days).

Data sources

    Leaderboard

    Optional online board: name only, no login. If the API is down, the game still works and the board stays hidden.

    Level

    $0
    Equity
    $10,000
    Cash
    $10,000
    Shares
    0
    Line chart · tradable start = 100
    ≈ 0 shares
    Stop-loss

    Play money, not financial advice

    Reveal

    Play money, not financial advice
    Your equity
    $0
    Buy-and-hold
    $0
    Vs buy-and-hold
    $0
    Streak / best
    —
    Labeled window