Comparison

Trading Strategy Calculator vs RiskEngine

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Trading Strategy Calculator

Features
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Before you risk real money, find out if your trading strategy actually makes mathematical sense. Trading Strategy Calculator turns your win rate, average win, average loss and costs into growth per trade, then runs a Monte Carlo risk report: 2,000 simulated runs that show whether your edge compounds, stalls or quietly bleeds out โ€” and how deep the drawdowns get on the way. WHAT IT DOES โ€ข Risk report โ€” one random run of your strategy, then 2,000 more that grow around it as bands, over 100, 1,000 or 10,000 trades: the range of outcomes, chance of profit, max drawdown, chance of a โˆ’20% drawdown, risk of ruin (a โˆ’50% drawdown) and the longest losing streak. Simulated from your inputs, not a forecast โ€ข Growth per trade โ€” your edge before fees, what fees take, the break-even win rate and how many trades it takes to double or halve the balance โ€ข Fees + slippage โ€” one round-trip cost per trade; enter it negative to model maker rebates โ€ข Compounding or flat stake โ€” risk a percentage of a balance that moves, or the same dollar amount every trade โ€ข Until $1B โ€” 2,000 runs that each go until $1B or bust (up to 1,000,000 compounding trades): the chance of getting there, the chance of going bust and how many trades it typically takes โ€ข Stop-loss and take-profit โ€” exact prices from your entry and reward:risk ratio โ€ข Position size โ€” your capital and risk % become the exact size of the next trade, with margin, leverage and a warning when liquidation would hit before your stop โ€ข Fee-aware sizing โ€” add your round-trip fee and the size shrinks so a stopped-out trade loses exactly your risk, fees included; reward and R:R are shown net of fees โ€ข Simulate this setup โ€” one tap loads the trade you just sized into the analyzer: win rate, average win, average loss and fees Everything above is free and stays free. KELLY CRITERION (PRO) Kelly turns your win rate and reward:risk, net of your round-trip fee, into the most your edge can justify risking per trade โ€” a ceiling, not a target โ€” and tells you to skip the trade when there is no edge. Full, Half and Quarter Kelly are one tap apart, it warns when your current risk is past what your edge supports, and one tap writes the size into your risk per trade. The Kelly ladder simulates 2,000 runs of 250 trades at Full, Half and Quarter Kelly and at your own risk, side by side: typical end balance, max drawdown and the chance of a โˆ’50% drawdown โ€” so you see why a fraction of Kelly is the sane bet. Pro also includes two Pro app icons. Pro is a one-time unlock: buy it once, keep it forever. No subscription, no trial, no ads, no account. WHO IT'S FOR โ€ข Crypto and futures traders sizing the next position โ€ข Forex / FX scalpers stress-testing an edge before risking capital โ€ข Day traders and swing traders who want to know their drawdowns and risk of ruin before they live through them โ€ข Anyone curious whether their '60% win rate' actually compounds PRIVACY-FIRST โ€ข No accounts. No ads. No analytics. No data collection. โ€ข Everything runs on your device. Your strategy stays yours. Built by traders who got tired of finding out the hard way.

About

RiskEngine

Features
Read full description

Risk Engine is the app designed to help you quickly and clearly calculate position size, monetary risk, stop loss, take profit, and trade exposure. Simply enter the main parameters of your trade and get an immediate, easy-to-read output โ€” perfect for organizing your risk management before entering the market. With Risk Engine you can: Calculate position size based on your capital and risk per trade Set stop loss using multiple methods, including fixed, percentage, ATR, structure, and hybrid Estimate take profit, leverage used, and total exposure Simulate the theoretical performance of your capital across multiple trades Easily monitor your risk/reward ratio The interface is designed to be fast, clean, and intuitive, so you can see the most important data at a glance. Important: Risk Engine does not provide financial advice and is not a substitute for your own analysis. It is an operational support tool created to simplify calculations and improve your risk management discipline. Ideal for traders and users who want a focused, practical, and essential utility to better plan every trade.

Screenshots

Trading Strategy Calculator4 screens
RiskEngine4 screens

Verdict

The call

The clearest difference is ads: Trading Strategy Calculator at none against RiskEngine's shown. RiskEngine's advantage is update cadence (every 2 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Trading Strategy Calculator ships an update fortnightly, RiskEngine every 2 days. The most recent releases landed on October 18, 2026 and October 9, 2026 respectively.

Scorecard2 real differences ยท 4 level
Trading Strategy Calculator versus RiskEngine: the parameters behind the verdict, then further details
ParameterTrading Strategy CalculatorRiskEngine
PriceFreeFree
Update frequencyFortnightlyEvery 2 days โ€” better
AdsNo โ€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS1716.6 โ€” better
Further details โ€” not scored
Size10 MB5 MB
Age rating12+4+
DeveloperA.I. Software AppsIvan Vecchi

In-app purchases

None

Trading Strategy Calculator

No in-app purchases

None

RiskEngine

No in-app purchases

Questions

Is Trading Strategy Calculator free?
Trading Strategy Calculator is free to download, with no in-app purchases.
Is RiskEngine free?
RiskEngine is free to download, with no in-app purchases.
Do Trading Strategy Calculator or RiskEngine have ads?
RiskEngine shows ads; Trading Strategy Calculator does not.
Which is updated more often, Trading Strategy Calculator or RiskEngine?
Trading Strategy Calculator ships an update fortnightly, and RiskEngine every 2 days. Most recently, Trading Strategy Calculator was updated on October 18, 2026 and RiskEngine on October 9, 2026.

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