ThesisEdge
AI backtest na S&P 500
Free · Designed for iPad. Not verified for macOS.
Describe an investment idea in plain words and see how it would have done over 30+ years of S&P 500 history: CAGR, drawdown, Sharpe. A learning tool, not advice.
ThesisEdge turns plain-language investment ideas into rigorous historical backtests. Describe your strategy how you'd explain it to a friend — "DCA $500 monthly into SPY for 20 years, reinvest dividends" — and an AI built on gpt-5-mini parses it into precise parameters. A backtest engine running locally on your phone then simulates it against 30+ years of SP 500 history, including dividends, splits, ETF expense ratios, and capital gains tax.
What you can test:
• Single-stock buy-and-hold (AAPL, NVDA, TSLA, etc.)
• Monthly/weekly DCA into individual stocks or ETFs (SPY, QQQ, VTI)
• Equal-weight baskets (FAANG, dividend aristocrats)
• Top-N screeners by market cap or growth metrics
• Contrarian strategies (buy the laggards, RSI below 30 etc.)
• "What if I bought at the 2007 peak?" worst-case timing
Results include CAGR, max drawdown, Sharpe ratio, profit factor, win rate, and a side-by-side benchmark vs. SP 500. You can compare two strategies head-to-head and adjust for inflation (US CPI or PL CPI for PLN strategies).
The engine is validated against open-source backtesting libraries (vectorbt + backtrader) on 100 diverse strategies — 96% match within 2%. The AI parser achieves 100% accuracy on 179 test prompts across 8 languages.
Available in: English, Polish, German, French, Spanish, Portuguese, Simplified Chinese, Japanese.
Free with ads. Each AI query has a cost; ads help keep the project running. Watch a short video to unlock extra features.
Disclaimer: ThesisEdge is an educational tool for historical simulations. Past performance is NOT a guarantee of future results. This app does not provide investment recommendations or advice. All investment decisions are your own responsibility.
SUBSCRIPTION & PURCHASES
ThesisEdge Premium — Monthly (auto-renewable). Length: 1 month. Price: $2.99 USD/month (prices may vary by region). Premium removes ads and unlocks extra features. We also offer a one-time AI Token Pack (consumable, $2.99).
Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel anytime in your App Store account settings.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://kandyb-studio.eu/apps/thesisedge/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Rewarded ads work again: the video starts right away and your free AI query is credited the moment it ends.
In Europe the app now asks how your data may be used for ads, as the GDPR requires. You can change that answer any time in Settings.
The developer, PAWEŁ KANDYBOWICZ, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- PAWEŁ KANDYBOWICZ
- Size
- 45.8 MB
- Category
- Finance
- Compatibility
Requires iOS 14.0 or later.
- iPhone
Requires iOS 14.0 or later. - iPad
Requires iPadOS 14.0 or later. - iPod touch
Requires iOS 14.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Kandyb Studio