Watch a loop trade before you trust one.
Pick a strategy, set a couple of rules, choose how the market behaves, and watch every buy and sell the real LoopTrading engine would make. It runs in your browser on made-up prices with $1,000 of sample money — nothing is sent anywhere, nothing is traded. How each strategy works
Buy the dip, sell the rise, repeat.
Big swings around a level — up, down, back again.
What this is — and isn't
The decisions come from the same rules a live loop uses, including fees at the exchange's published rate and the no-loss check that refuses a sale that would not cover them. The prices are invented: calm and choppy markets wander around a level, climbing and sliding markets trend. Real markets gap, stall and trend in ways a made-up chart doesn't, orders can fill at worse prices, and exchanges have minimums — so a result here shows how the rules behave, not what will happen.
With a free account, the full Sandbox replays real price history from Binance.US, Coinbase and Kraken with every setting a live loop has. Nothing in either Sandbox is financial advice.