Crypto Simulator vs Undertow

See what a crypto strategy would have done — before you trust the idea. Pick a coin and a rule, and get the result on years of real daily price data in seconds: return, max drawdown, win rate, every trade on the chart, and how it compared with simply holding. WHAT YOU CAN TEST • Grid bot — a price range and a number of grids, and how the bot's orders would have filled • DCA bot — base order, safety orders every X%, volume scale and take profit • RSI and Bollinger Band mean-reversion rules • Recurring buys (DCA), HODL, stop-loss / take-profit, trailing stop, moving-average golden cross, and combinations • 20 coins: BTC, ETH, XRP, SOL, DOGE, ADA, BNB, LINK, AVAX, DOT, POL, TRX, LTC, BCH, NEAR, ATOM, ARB, OP, APT, FIL • Results in USDT, BTC or ETH terms BUILT TO BE TRUSTED • Fees and slippage included in every result • Every run is cross-checked by an independent calculation engine • The execution model is spelled out: daily bars, no look-ahead • A plain-language explanation behind every metric EXPLORE • Type an idea in plain words ("What if I had bought ETH every week for a year?") or build it step by step • AI Explore re-runs the same logic across other parameters and coins over the same period • Cases: browse past backtests — wins and losses alike • Share any result as an image card CRYPTOSIM AI PRO Unlimited backtests (free plan: 3 per day), grid & DCA bots, RSI and Bollinger strategies, every AI Explore result and unlimited Cases. Annual and monthly plans; new subscribers can start with a 1-week free trial. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; renewal is charged within 24 hours before the period ends. Manage or cancel anytime in your Apple ID account settings. IMPORTANT This app is a calculation tool. It simulates rules on historical data only — it does not execute trades, hold funds, connect to exchanges or give investment advice. Past results do not guarantee future results. Privacy Policy: https://cryptobt-production.up.railway.app/privacy Terms of Use: https://cryptobt-production.up.railway.app/terms

Undertow measures what price charts do not show: how much of each crypto asset actually sits in exchange wallets, and what happens when that amount moves. We read balances directly from public blockchains every 10 minutes, across 203 verified exchange wallet addresses. Nothing is licensed from a third party, which is why we can show you exactly which addresses we track and where our data has gaps. WE TELL YOU. YOU DON'T HUNT. Nobody opens an app to scan tables. Radar is a feed of measured anomalies: when an exchange reserve moves unusually, when whales cluster, when liquidations cascade, it arrives with the numbers already in it. Notifications have a daily cap and quiet hours. If you set a watchlist, only those assets reach you. WHAT YOU GET - Exchange reserves: 24h, 7d and 30d change for every tracked asset, ranked and scored against that asset's own history - Stablecoin Barometer: total stablecoins held on exchanges, broken down by exchange so you see not just how much buying power is waiting, but where - Whale transfers: classified, with internal rotations and bridge movements filtered out, and an option to hide stablecoins - Derivatives: funding, open interest and live liquidations - Premiums: cross-exchange spreads and stablecoin peg deviation - Token unlocks: with the share of circulating supply, not just the amount MEASUREMENT, NOT PREDICTION Undertow never tells you what will happen. A rising exchange balance can mean coins arrived to be sold, or that an institution moved custody. We show the measurement and the context, and leave the call to you. There are no signals, no scores, no price targets. Every number is a historical measurement you can verify. Each screen also states what it CANNOT see. Sales made over the counter or on decentralised exchanges leave no trace in these numbers, and we say so. PRIVACY BY SUBTRACTION No wallet connection. No location. No contacts, camera or microphone. No advertising ID, and we do not even ask for tracking permission, because we do no tracking. No password: sign in with Google or Apple, or use the app without an account. Data not collected cannot leak. FREE AND PREMIUM Free: top assets by movement, 24h window, 60-minute delayed data, the Stablecoin Barometer, watchlist and alerts. No ads, ever. Premium: every tracked asset, every time window, real-time data, full history, exchange-by-exchange breakdown, unlimited alerts and instant notifications. Available in 12 languages. Undertow is an information and data visualisation tool. It does not provide investment advice or buy/sell recommendations. Crypto assets are high risk and you may lose the entire amount you invest. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/