WallStSmart

Apple Inc. (AAPL)vsDuolingo Inc (DUOL)

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Smart Verdict

WallStSmart Research — data-driven comparison

Apple Inc. generates 40670% more annual revenue ($466.82B vs $1.15B). DUOL leads profitability with a 35.9% profit margin vs 27.6%. DUOL trades at a lower P/E of 16.8x. AAPL earns a higher WallStSmart Score of 67/100 (B-).

AAPL

Strong Buy

67

out of 100

Grade: B-

Growth: 6.7Profit: 10.0Value: 3.7Quality: 6.5
Piotroski: 7/9Altman Z: 2.42

DUOL

Buy

53

out of 100

Grade: C-

Growth: 6.7Profit: 8.0Value: 7.7Quality: 7.5
Piotroski: 2/9Altman Z: 2.81
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

Intrinsic value data unavailable for AAPL.

DUOLUndervalued (+57.4%)

Margin of Safety

+57.4%

Fair Value

$256.65

Current Price

$143.51

$113.14 discount

UndervaluedFair: $256.65Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

AAPL6 strengths · Avg: 9.5/10
Market CapQuality
$4.92T10/10

Mega-cap, among the largest globally

Return on EquityProfitability
119.9%10/10

Every $100 of equity generates 120 in profit

Operating MarginProfitability
32.6%10/10

Strong operational efficiency at 32.6%

Free Cash FlowQuality
$31.91B10/10

Generating 31.9B in free cash flow

Profit MarginProfitability
27.6%9/10

Keeps 28 of every $100 in revenue as profit

Revenue GrowthGrowth
16.4%8/10

16.4% revenue growth

DUOL5 strengths · Avg: 9.2/10
Return on EquityProfitability
30.4%10/10

Every $100 of equity generates 30 in profit

Profit MarginProfitability
35.9%10/10

Keeps 36 of every $100 in revenue as profit

Debt/EquityHealth
0.0610/10

Conservative balance sheet, low leverage

P/E RatioValuation
16.8x8/10

Attractively priced relative to earnings

Revenue GrowthGrowth
18.3%8/10

18.3% revenue growth

Areas to Watch

AAPL3 concerns · Avg: 2.7/10
P/E RatioValuation
38.9x4/10

Premium valuation, high expectations priced in

PEG RatioValuation
2.732/10

Expensive relative to growth rate

Price/BookValuation
45.6x2/10

Trading at 45.6x book value

DUOL2 concerns · Avg: 2.5/10
Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

EPS GrowthGrowth
-27.5%2/10

Earnings declined 27.5%

Comparative Analysis Report

WallStSmart Research

Bull Case : AAPL

The strongest argument for AAPL centers on Market Cap, Return on Equity, Operating Margin. Profitability is solid with margins at 27.6% and operating margin at 32.6%. Revenue growth of 16.4% demonstrates continued momentum.

Bull Case : DUOL

The strongest argument for DUOL centers on Return on Equity, Profit Margin, Debt/Equity. Profitability is solid with margins at 35.9% and operating margin at 11.7%. Revenue growth of 18.3% demonstrates continued momentum.

Bear Case : AAPL

The primary concerns for AAPL are P/E Ratio, PEG Ratio, Price/Book.

Bear Case : DUOL

The primary concerns for DUOL are Piotroski F-Score, EPS Growth.

Key Dynamics to Monitor

AAPL carries more volatility with a beta of 1.08 — expect wider price swings.

DUOL is growing revenue faster at 18.3% — sustainability is the question.

AAPL generates stronger free cash flow (31.9B), providing more financial flexibility.

Monitor CONSUMER ELECTRONICS industry trends, competitive dynamics, and regulatory changes.

Bottom Line

AAPL scores higher overall (67/100 vs 53/100), backed by strong 27.6% margins and 16.4% revenue growth. DUOL offers better value entry with a 57.4% margin of safety. Both earn "Strong Buy" and "Buy" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

Apple Inc.

TECHNOLOGY · CONSUMER ELECTRONICS · USA

Apple Inc. is an American multinational technology company that specializes in consumer electronics, computer software, and online services. Apple is the world's largest technology company by revenue (totalling $274.5 billion in 2020) and, since January 2021, the world's most valuable company. As of 2021, Apple is the world's fourth-largest PC vendor by unit sales, and fourth-largest smartphone manufacturer. It is one of the Big Five American information technology companies, along with Amazon, Google, Microsoft, and Facebook.

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Duolingo Inc

TECHNOLOGY · SOFTWARE - APPLICATION · USA

Duolingo Inc (DUOL) is a leading player in the edtech sector, renowned for its innovative language-learning platform that has successfully engaged over 500 million users globally through a unique freemium model augmented by gamification. Established in 2011, Duolingo utilizes advanced AI-driven personalized learning to enhance user experience and retention across more than 30 languages. The company's unwavering mission to provide accessible education aligns with the rapid expansion of the digital learning market, offering substantial growth potential for institutional investors seeking to tap into the future of educational technology.

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