Fin Screener

About Fin Screener

Fin Screener is a stock screening and analysis app for iOS, built by LestonzTech. It helps investors scan and analyze stocks across more than 10 global exchanges — including Borsa Istanbul (BIST), NASDAQ and NYSE — using both technical and fundamental criteria.

Why we built it

Most powerful stock screeners are built for desktop and assume you are sitting at a workstation. Fin Screener takes a different approach: a fast, focused screening and analysis tool that lives in your pocket. The goal is to make serious fundamental and technical analysis — Graham Number, DCF, Piotroski F-Score, Altman Z-Score, RSI and more — accessible from your phone, without an account and without sending your data to a server.

Our approach

We focus on being honest and practical. Fin Screener uses delayed market data (not real-time), keeps all your data on your device, and requires no account. It is free to use, with a Pro subscription that unlocks unlimited analysis. We would rather clearly explain what the app does and does not do than overpromise.

Platforms

Fin Screener is available on both iOS (App Store) and Android (Google Play). It also offers institutional-grade fundamental and technical analysis reports, plus a per-stock AI analysis prompt that you can take to an external AI assistant.

Contact

Questions, feedback or suggestions are welcome at lestonztech@gmail.com.

App Store Google Play

Frequently asked questions

Who develops Fin Screener?

Fin Screener is developed by LestonzTech, an independent app developer. It is a stock screening and analysis app for iOS, available on the App Store.

Is Fin Screener available on Android?

Yes. Fin Screener is available on both iOS (App Store) and Android (Google Play).

Does Fin Screener use real-time data?

No. Fin Screener uses delayed market data, not real-time quotes. It is designed for analysis and screening rather than day trading.

Does Fin Screener require an account?

No account is required. All your data is stored locally on your device, and the app's features are available immediately.