Which has the lower trailing P/E, APPF or DUOL?

DUOL has the lower trailing P/E: APPF trades at 51.20 and DUOL at 19.04. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, APPF or DUOL?

Over the past five years, DUOL grew revenue faster — APPF at a 26.26% CAGR versus DUOL at 40.70%.

Is APPF or DUOL more profitable?

DUOL runs the higher net margin — APPF at 15.13% versus DUOL at 35.87%.

How have APPF and DUOL total returns compared?

Over the past 5 years, APPF delivered 28.38% and DUOL delivered 2.92% annualized total return. Past performance doesn't predict future results.

AppFolio Inc. (APPF) vs Duolingo, Inc. (DUOL)

A side-by-side comparison of AppFolio Inc. and Duolingo, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 2, 2026. Differences are shown without an overall score or investment verdict.

APPF

AppFolio Inc.

$8.01B

$224.27TechnologyDelayed quote: Sep 2, 2026, 4:00 PM EDT

DUOL

Duolingo, Inc.

$7.35B

$157.85TechnologyDelayed quote: Sep 2, 2026, 4:00 PM EDT

Total return — APPF vs DUOL

growth of $100 · dividends reinvested · last 5y

APPF +62.8% (+10.2%/yr)DUOL +14.2% (+2.7%/yr)APPF compounded faster over this window

APPF DUOL

APPF vs DUOL: by the numbers

•APPF is the larger company ($8.01B vs $7.35B market cap).
•DUOL trades at the lower trailing earnings multiple (19.04 vs 51.20 P/E), one valuation lens rather than an overall verdict.
•DUOL converts more revenue to profit (35.87% vs 15.13% net margin).
•DUOL grew revenue faster over the past five years (40.70% vs 26.26% CAGR).

Metrics side by side

Valuation

Metric	APPF	DUOL
P/E ratio	51.20	19.04
Forward P/E	32.50	57.74
P/S ratio	7.68	6.94
P/B ratio	15.19	5.63
EV / EBITDA	38.39	38.45
FCF yield	3.37%	5.10%

Profitability

Metric	APPF	DUOL
Gross margin	63.04%	72.34%
Operating margin	17.52%	14.18%
Net margin	15.13%	35.87%
ROE	29.94%	29.14%
ROIC	26.85%	10.85%

Growth (annualized)

Metric	APPF	DUOL
Revenue CAGR (5Y)	26.26%	40.70%
EPS CAGR (5Y)	-3.28%	N/A
FCF CAGR (5Y)	72.35%	91.58%
Total return CAGR (5Y)	13.01%	2.92%

Frequently asked

Which has the lower trailing P/E, APPF or DUOL?: DUOL has the lower trailing P/E: APPF trades at 51.20 and DUOL at 19.04. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, APPF or DUOL?: Over the past five years, DUOL grew revenue faster — APPF at a 26.26% CAGR versus DUOL at 40.70%.
Is APPF or DUOL more profitable?: DUOL runs the higher net margin — APPF at 15.13% versus DUOL at 35.87%.
How have APPF and DUOL total returns compared?: Over the past 5 years, APPF delivered 28.38% and DUOL delivered 2.92% annualized total return. Past performance doesn't predict future results.

Go deeper

Full APPF analysis Full DUOL analysis Interactive comparison tool

Dig into the metrics

AppFolio P/E ratio Duolingo P/E ratio AppFolio ROE Duolingo ROE AppFolio operating margin Duolingo operating margin AppFolio revenue growth Duolingo revenue growth AppFolio free cash flow Duolingo free cash flow

AppFolio & Duolingo appear in these rankings

Fastest Revenue Growth Stocks Highest ROE Stocks Highest ROIC Stocks Highest FCF Yield Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified September 2, 2026.