iOS · Live on the App Store

Scan thousands of stocks in seconds

Fin Screener is an iOS app that screens 30+ exchanges across 13 countries and generates a full Buffett/Graham/Lynch-style valuation for every stock — from BIST and NASDAQ to Tokyo and Tadawul.

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Free · No account required · Your data stays on your device

What is Fin Screener?

Fin Screener is a stock screening and deep-analysis app built for iOS. It covers 30+ exchanges across 13 countries and, for each stock, generates a structured report inspired by Warren Buffett, Benjamin Graham and Peter Lynch — including Piotroski F-Score, Altman Z-Score, Graham Number, Lynch fair value, DCF, margin of safety and buy/sell zones. Developed by LestonzTech.

Features

Everything you need to make investment decisions

30+ exchanges, 13 countries

BIST, NASDAQ, NYSE, LSE, Xetra, Euronext, TSX, Tokyo, Hong Kong, Tadawul and more — from one app.

Full valuation per stock

Lynch fair value (PEG=1), DCF valuation, Graham Number, upside potential and margin of safety.

Buffett, Graham & Lynch methods

Each stock gets a structured report inspired by three of the most respected investing methodologies.

Quality & risk scores

Piotroski F-Score, Altman Z-Score, plus a risk breakdown across debt, liquidity, growth and volatility.

Buy/sell strategy zones

Actionable price zones — strong buy, accumulate, hold, take profit, sell — and a 0–10 investment score.

Screening & export

Filter by RSI, P/E, P/B, ROE, FCF and momentum. Export results to Excel or PDF in one tap.

Who is it for?

Built for every type of investor

Value investorsFind undervalued companies with Graham Number, Lynch fair value, DCF and margin of safety — Buffett/Graham/Lynch logic built in.
Global investorsScreen and analyze stocks across 13 countries, from the US and Europe to Japan, Hong Kong and Saudi Arabia.
BIST investorsOne of the few iOS apps with proper Borsa Istanbul coverage, fully analyzed in your own language.
Swing tradersCombine RSI zones, volume filters and buy/sell strategy zones to time entries and exits.

Frequently asked questions

Common questions

Is there a good stock screener app for iOS?

Fin Screener is an iOS app that screens 30+ exchanges across 13 countries and generates a full valuation report for each stock, inspired by Buffett, Graham and Lynch methods. The free tier covers up to 4 full stock analyses per day; Pro unlocks unlimited analysis and advanced screening.

Which exchanges and countries are supported?

30+ exchanges across 13 countries: Turkey (BIST), US (NASDAQ, NYSE, AMEX), UK (LSE), Germany (Xetra, Frankfurt and more), France (Euronext), Italy, Spain, Canada (TSX), Australia (ASX), Russia (MOEX), Japan (TSE/JPX), China/Hong Kong (SSE, SZSE, HKEX) and Saudi Arabia (Tadawul).

Does it calculate fair value or margin of safety?

Yes. For each stock, Fin Screener estimates fair value using Peter Lynch's method (PEG=1) and a DCF model, then shows upside potential and margin of safety, plus buy/sell strategy zones.

Can it calculate Piotroski F-Score or Altman Z-Score?

Yes. Fin Screener calculates Piotroski F-Score (9 criteria), Altman Z-Score, Graham Number and DCF valuation for each stock, alongside a full risk breakdown and a 0–10 investment score.

Is Fin Screener free?

It is freemium. The free tier includes full analysis of up to 4 stocks per day. Pro unlocks unlimited analysis, advanced screening, unlimited favorites and Excel/PDF export.

Do I need an account? Is my data safe?

No account needed. All your data is stored on your device and features work immediately.