RuinRisk vs ETF Compass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RuinRisk
Visualize your investment and trading risk with this intuitive calculator. Easily adjust parameters like risk per trade and win rate to understand your probability of ruin. Offers both basic and advanced analysis modes for beginners and experienced traders.
- Probability of Ruin Simulation
- Heatmap Risk Visualization
- Monte Carlo Simulations (Pro Mode)
- Maximum Drawdown Estimation (Pro Mode)
- Drawdown Probability Analysis (Pro Mode)
- Strategy Comparison
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RuinRisk shows how likely a trading plan is to wipe out your capital, and how deep the drawdowns along the way can get. Enter three numbers and the result updates as you move the sliders. THREE INPUTS • Win rate • Risk:reward ratio • Capital risk (the share of your capital you risk on each trade) Set each one with a slider or type the value directly. All three move in steps of 0.1 and are remembered the next time you open the app. FREE: LEGACY MODE • CALC: Risk of ruin, defined as the probability of losing all of your capital, calculated instantly from your three inputs. • HEATMAP: A color-coded risk-of-ruin table. Choose which parameter to hold fixed, pinch to zoom, and double-tap to return to the default zoom. • A short walkthrough appears on first launch and can be reopened anytime from the button at the top right. PREMIUM: PRO MODE Pro mode is unlocked with a one-time in-app purchase. It is not a subscription. • CALC: Ruin is defined as your capital falling to a level you choose (50% by default; 30% and 20% are also available). The theoretical value is shown next to a log-growth estimate, along with the difference between the two. • HEATMAP: Marks your current settings on the map, compares which of the three inputs drives your risk the most, and shows how far the risk of ruin would fall if you changed one input on its own. • ANALYSIS: Monte Carlo simulation of maximum drawdown over 100, 500 or 1,000 trades, with the probability of a 10%, 20%, 30%, 50% or 70% drop from the peak. Results are summarized from three perspectives: ruin probability, Monte Carlo drawdown, and position sizing against the Kelly criterion. • MATRIX: A table of drawdown probabilities from 5% to 100% across 100, 500 and 1,000 trades. Save up to five plans, compare them side by side, apply a saved plan to your inputs, and export the table as a CSV file. • Settings: Ruin definition, compounding on or off, simulation quality (1,000, 10,000 or 100,000 runs), and the percentile used for maximum drawdown (50th, 75th or 95th). Legacy and Pro define ruin differently, so the same inputs give different numbers in each mode. The app explains the difference on screen. WHO IT'S FOR • Traders who want to check a position size before putting real money at risk • Anyone comparing approaches with different win rates and risk:reward ratios • People learning money management who want to see how the numbers move GOOD TO KNOW • No ads, no account and no tracking. Your inputs and saved plans stay on your device. • Supports VoiceOver and larger text sizes. • For iPhone and iPad. Requires iOS 18 or later. • Available in English and Japanese. RuinRisk is a calculation tool for education and reference. Its results are theoretical values and simulations based on the numbers you enter. They are not investment advice, and they do not predict or guarantee future results. Trading involves the risk of loss.
ETF Compass
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ETF Compass helps you build an ETF portfolio aligned with your investor profile and financial goal through a clear, structured, and fully local experience. The app currently supports ETF universes and informational frameworks for Canada, France, the United States, and the United Kingdom. With ETF Compass, you can: define your risk profile choose a financial goal receive a portfolio suggestion consistent with your situation explore ETFs covering a broad range of sectors, management styles, and portfolio orientations adjust your portfolio construction based on your preferences The ETFs included in the app were carefully selected to cover a broad and useful scope: geographic diversification, major sectors, income, growth, more conservative profiles, more dynamic profiles, and different portfolio construction approaches. Privacy comes first: no AI is used in the app no data is shared no personally identifiable information is collected the app runs locally on your device ETF Compass was designed to provide a simple, private, and controlled experience without relying on external services or remote processing. Important: ETF Compass is an informational and educational application. It does not provide financial, tax, legal, or personalized investment advice. Terms of Use: https://bedhommeworks.com/#terms Privacy Policy: https://bedhommeworks.com/#privacy
Screenshots
Verdict
RuinRisk and ETF Compass are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. RuinRisk sells 1 one-off in-app purchase and ETF Compass sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | RuinRisk | ETF Compass |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | RYUICHIROU SHIMONO | Cedric Bedhomme |
In-app purchases
RuinRisk
- RuinRisk Premium$2.99
ETF Compass
- Premium Monthly$1.991 Month
- Premium Yearly$9.991 Year
- Premium Lifetime$22.99









