Finstery
Nicholas Summers Finance iPhoneiPadiPod touch
Finstery is a free Finance app for iPhone and iPad by Nicholas Summers. Rated 5.0/5 from 1 ratings. Requires iOS 26.0. Updated May 17, 2026.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 8 MB
- Age 4+
- Updated
- May 17
- 2026 · v1.2
Screenshots
About Finstery
Finstery helps DIY investors and early retirees stress test their portfolios with confidence. Whether you're planning for financial independence or already retired, Finstery gives you the tools to see how your strategy holds up in the real world — and in the worst-case scenarios. Use powerful backtesting to simulate your portfolio across decades of historical data. Run Monte Carlo simulations to visualize risk and uncertainty in future returns. Explore safe withdrawal strategies and understand how different allocations respond to inflation, recessions, and market volatility. Finstery brings clarity to one of the biggest questions in early retirement: Is my plan resilient enough? Built for independent thinkers. Designed for long horizons. Finstery offers optional premium features via an auto-renewable subscription. Free Features: • Portfolio creation • Historical backtesting summaries and statistics Premium Features (Subscription Required): • Monte Carlo simulations • Safe Withdrawal Rate analysis Subscription pricing and terms are clearly shown before purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: http://finstery.com/#privacy_policy
What’s new
Version 1.2 · Updated May 17, 2026
• Mortgage Payoff vs. Investing Analysis Introducing a powerful new tool to help you decide: should you pay off your mortgage early or invest instead? Run a Monte Carlo simulation to compare strategies using realistic market return sequences, while accounting for taxes and inflation. Explore outcomes for paying off your mortgage, investing in the market, or using a blended approach. Make more informed financial decisions with data-driven insights — not guesswork.
App privacy
The developer, Nicholas Summers, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Finstery
Looking for apps like Finstery? Here are 6 similar apps on the App Store. The highest rated is Tip Calc - Tracker (5.0/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Finstery | 5.0 / 5 (1 rating) | Free | May 17, 2026 | |
| Assistrix | – | Free | Feb 5, 2026 | Compare |
| CalmCapital | – | Free | Apr 13, 2026 | Compare |
| EmberlyAI | – | Free | Nov 24, 2025 | Compare |
| Tip Calc - Tracker | 5.0 / 5 (1) | Free | Oct 7, 2026 | Compare |
| CFB Treasury Services | – | Free | Sep 30, 2026 | Compare |
| Retirement Planner: AssetPrism | – | Free | Oct 5, 2026 | Compare |
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