RuinRisk vs FX LotSize

RuinRisk – Investment Risk Through the Lens of Ruin Probability RuinRisk helps traders and individual investors analyze investment risk through the lens of "risk of ruin." From three parameters — win rate, risk:reward ratio, and capital risk per trade — it visualizes risk using both a theoretical formula and Monte Carlo simulation, helping you make decisions based on numbers rather than gut feeling. Key features: • Ruin Probability Calculator (CALC): Shows both the theoretical (Balsara) value and a Monte Carlo–based estimate • Risk Heatmap (HEATMAP): See at a glance how risk changes across parameter combinations, with suggested improvements • Monte Carlo Analysis (ANALYSIS): Simulates drawdown probability. Evaluates risk from three distinct perspectives — Ruin Probability, Monte Carlo Analysis, and the Kelly Criterion — with recommendations tailored to each • Data Matrix (MATRIX): A full table of drawdown probabilities by trade count and drawdown level. Save and compare multiple plans, and export to CSV RuinRisk includes both a simple Legacy Mode and a more detailed Pro Mode. Pro Mode's advanced analysis features can be unlocked via in-app purchase. *The information provided by this app is an estimate for reference purposes only. It does not constitute investment advice and does not guarantee future results. You are solely responsible for your own investment decisions.

How to use the app Lot calculation tool You can calculate the appropriate lot when entering FX (holding a position). 1. Set the currency pair 2. Enter the margin (account balance) 3. Set the loss tolerance as a percentage of the margin 4. Finally, enter the stop loss 5. Tap the calculate button to display the appropriate lot. Profit and loss ratio tool 1. Set the profit lock pips (take profit) 2. Set the loss tolerance pips (stop loss) 3. Automatically display risk reward Settings Regarding the currency of 1 lot, please check the information of your trading company and set it. The default is set to 10,000 currency per lot. The loss tolerance (%) can be changed to the % set when the app is launched. The currency pair at launch can be changed to the currency pair set when the app is launched. The currency pair list can be listed as you like. The only currency pairs available in the free version are USD/JPY and EUR/USD/GBP/JPY. If you want to calculate lots for other currency pairs, you will need to upgrade. After upgrading, you will be able to use all currency pairs without any charge.