RangeSight Help
These guides answer a specific question, then point you at the page that already covers it. New guides live under Help. The playground, the risk of ruin calculator, the glossary, the blog, and the prop firm compare table stay on their existing URLs.
Last updated: November 10, 2026
Get started
Run a free check on the Strategy Playground, or open the paid web app after you buy.
- How do I run a RangeSight simulation on the web?
You can run a free check on the Strategy Playground with no signup. Enter a plan, choose Run Simulation, and read the result. The paid product is the web app.
Buying and access
The price, where checkout starts, the sign-in link, and how a web refund works.
- How much does RangeSight cost, and where do I buy it?
RangeSight on the web is a one-time purchase. The founder price is $29.99 for the first 1,000 buyers, then $99.99. There is no subscription.
- How do I sign in with a magic link after I pay?
Open the web app, sign in with the checkout email, and use the one-time link from login@rangesightstudios.com. The link lasts about 15 minutes.
- How do refunds work?
You may request a web refund within 14 days by emailing contact@adepoco.com from the checkout address, and including the email on the receipt.
Playground and calculators
The free playground and the shorter risk of ruin calculator, on their existing pages.
- What is the RangeSight playground?
The playground is a free strategy check. You enter a plan, choose Run Simulation, and get a survival reading. No signup is required.
- How do I use the free risk of ruin calculator?
Enter win rate, risk per trade, and reward to risk. The calculator estimates the chance the plan hits a ruin level. It has no trade-count field.
Drawdown
What drawdown means, and how to think about a cushion on a $50k prop account.
- What is drawdown in trading?
Drawdown is the peak-to-trough decline in a trading account, from a high to the low before a new high. It is usually a percentage of that peak.
- What is a drawdown cushion, and how do I think about one on a $50k prop account?
A cushion is the number of full losing trades, at your size, that would take the account to its max-loss limit. Count it in losers, not only in dollars.
Position sizing
Fixed fractional versus Kelly, and how risk of ruin differs on a prop firm account.
- How should I think about fixed fractional vs Kelly position sizing?
Fixed fractional risks a constant share of current equity. Kelly asks what fraction would maximize long-run growth. RangeSight has no Kelly mode.
- What is the difference between risk of ruin and Kelly for prop firm sizing?
Kelly looks for long-run growth. Risk of ruin asks whether this size hits a loss level that ends the account. On a prop firm, that level is a rule.
Prop firms
How to read the compare table for max drawdown, daily loss, and drawdown type.
- Which prop firm has the largest drawdown limit?
Sort the compare table by Max DD and read the high end, then confirm the rule with the firm. A larger headline number is not automatically easier.
Comparisons
Trailing drawdown versus static drawdown, in plain words.
- What is the difference between trailing and static drawdown in a prop firm?
A static drawdown is measured from a starting balance. A trailing drawdown follows a peak, so the floor can rise after a winning run.
Glossary
Short definitions of risk of ruin and Monte Carlo simulation.
- What is risk of ruin?
Risk of ruin is the chance a trading plan hits a level where you would have to stop. It depends on win rate, risk per trade, and reward to risk.
- What is a Monte Carlo simulation in trading?
A Monte Carlo simulation shows a range of outcomes for a trading plan, including a weaker case, a typical case, and a stronger case. It is not one backtest.