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Tuğçe Sezgin
Co-founder & Product Owner

Tuğçe Sezgin

I've spent about ten years growing as a project and product manager. I worked on e-transformation projects for organisations of very different sizes, including Trendyol, TEB and OYAK Group.

I've been a product owner on several SaaS products. Drawing up the roadmap with the team, seeing a user's feedback answered in the next sprint, and following a feature from idea to the user's hands became my favourite part of the job.

In 2025 I decided to put that experience into a product of my own and started working on the idea behind UseFinLit: an app that explains the stock market and personal finance in short lessons. Being part of every step from idea to a live product on the App Store and Google Play, and running both the process and the product development, has been a real joy.

We still work on UseFinLit every day. Every comment from our users shapes our next step, and new lessons and features are on the way.

Figures on the blog come with their source and date. The content is educational and not investment advice.

Posts by Tuğçe Sezgin

Price divided by earnings per share, shown as a simple P/E formula
Stocks & Markets

What Is a Good P/E Ratio? How to Calculate It and Read It by Sector

There is no single good P/E ratio. Learn the formula, a worked example, trailing vs forward P/E, and how P/E differs by sector, with October 2026 market data.

· Tuğçe Sezgin
Podcast headphones, open book, phone screen side by side
Comparison & Meta

Podcasts vs Apps vs Books for Learning Stocks: Which Wins

An honest comparison of three formats. Where each fits, where each fails, and the hybrid approach that beats them all.

· Tuğçe Sezgin
Pre-retiree reviewing finance chart on tablet
Comparison & Meta

Best 5 Apps to Learn Investing 10 Years From Retirement

For 55-65 year-olds making the most of the last 10 working years. 5 finance education apps compared with risk-aware retirement focus.

· Tuğçe Sezgin
Microlearning apps with streak and XP screens
Comparison & Meta

Is There a Duolingo for Finance? 5 Apps Compared (2026)

A Duolingo for finance? We compare 5 apps that teach investing with short lessons, streaks and practice: UseFinLit, Brilliant, Stash, Acorns, Khan Academy.

· Tuğçe Sezgin
5-minute lesson timer on phone screen
Comparison & Meta

Learn Investing in 5 Minutes a Day: 4 Methods That Work

Four learning routes for busy people, each 5 minutes/day. Microlearning + paper portfolio + news tracking + community.

· Tuğçe Sezgin
Various app logos overlaid on BIST 100 index screen
Comparison & Meta

6 Best Apps to Learn Borsa Istanbul (BIST) in 2026

An honest comparison of 6 mobile apps focused on Borsa Istanbul (BIST 100). Compared on learning, market data and practice.

· Tuğçe Sezgin
NASDAQ building with US flag and app logos
Comparison & Meta

How to Learn US Stocks (NASDAQ): 5 Apps Compared

Five apps for learning the US market (NYSE, NASDAQ, S&P 500). Honest comparison: free tier, broker integration, simulator, and structured curriculum.

· Tuğçe Sezgin
UseFinLit and Investopedia logos side by side
Comparison & Meta

Investopedia Simulator Alternative: UseFinLit vs Investopedia

Looking for an Investopedia simulator alternative with built-in lessons? UseFinLit vs Investopedia's stock simulator, compared feature by feature.

· Tuğçe Sezgin
5 different paper trading app screens side by side
Comparison & Meta

Top 5 Paper Trading Apps in 2026

Five paper-trading (virtual portfolio) apps for risk-free learning. UseFinLit, Investopedia, TradingView, Webull, Schwab thinkorswim compared.

· Tuğçe Sezgin
AI investment decision analysis chart
Comparison & Meta

AI-Powered Investing Education Apps Compared (2026)

Five apps that give AI feedback on your trades. The difference between 'win/loss' and 'decision quality' feedback.

· Tuğçe Sezgin
College student watching finance lesson on phone
Comparison & Meta

Top 5 Finance Apps for College Students (2026)

Low budget, fragmented schedule, zero experience. Honest comparison of 5 apps for learning finance during college.

· Tuğçe Sezgin
Three learning methods: short lesson screen, video player, simulator chart
Comparison & Meta

Microlearning vs Video Courses vs Simulators: 3 Ways to Learn Investing

Microlearning, video courses or a paper-trading simulator? Strengths and weaknesses of each way to learn investing, plus a 6-month combined plan.

· Tuğçe Sezgin
Two-fork road representing needs vs wants choice
Budgeting & Saving

Needs vs Wants: 12 Questions That Trick Your Brain

The gray zone between need and want is the hardest budgeting decision. Apply 12 questions, answer honestly, and find where the savings are.

· Tuğçe Sezgin
Active income, passive income, and expense category map
Budgeting & Saving

Active vs Passive Income: The 8 Types of Cash Flow

Money enters and leaves your life in 8 distinct types. Active, passive, and portfolio income; fixed, variable, and discretionary expenses; plus savings and debt payoff.

· Tuğçe Sezgin
Dividend payment flow from company to shareholder
Stocks & Markets

Dividends 101: 5 Key Questions

Dividends are cash payments companies make to shareholders. 5 starting questions about dividends, with US examples (KO, JNJ, AAPL). Related lessons are in UseFinLit.

· Tuğçe Sezgin
Seven investing app icons side by side
Comparison & Meta

Best Investing Apps for Total Beginners in 2026

Seven investing-education apps compared feature by feature: UseFinLit, Robinhood Learn, Stash, Investopedia Simulator, NerdWallet, Khan Academy, Brilliant.

· Tuğçe Sezgin
NYSE and NASDAQ buildings with buyer-seller match diagram
Stocks & Markets

What is the Stock Market? NYSE, NASDAQ, BIST in 5 Minutes

The stock market is an organized exchange where buyers and sellers of shares meet. NYSE, NASDAQ, and BIST explained from scratch with how stock prices form.

· Tuğçe Sezgin
Compound interest growth curve over 30 years
Budgeting & Saving

The Magic of Compound Interest: $500/Month for 30 Years

Compound interest turns $500/month into $1.13M over 30 years. The math, the historical S&P 500 returns, and the four leaks that destroy compounding.

· Tuğçe Sezgin
50 30 20 rule visual breakdown with three colored buckets
Budgeting & Saving

The 50/30/20 Rule: A Budget That Actually Sticks

The 50/30/20 budget rule explained for real life. A step-by-step way to split your paycheck so you can save without hating the process.

· Tuğçe Sezgin
Map of free investing education resources
Comparison & Meta

Learn Investing for $0: 7 Free Methods Compared

You can learn investing without spending a dollar. 7 methods compared honestly: microlearning apps, simulators, libraries, YouTube, podcasts, broker academies, MOOCs.

· Tuğçe Sezgin
Monthly budget plan with three colored category blocks
Budgeting & Saving

What is a Budget and Why It Changes Your Life

A budget is the plan that shows where your money goes each month. Why budgets often fail early, the simple system that sticks, and how to start in 30 minutes.

· Tuğçe Sezgin