AppFolio, Inc. vs Duolingo, Inc.
Side-by-Side SaaS Metrics & Valuation Comparison
analyticsVertical SaaS
Data as of Q1 2026
Summary Verdict
APPF: 2—DUOL: 3wins
Rule of 40
33.4APPF
74.9DUOL
check_circleDUOL leads
Revenue Growth
21.5%APPF
39.9%DUOL
check_circleDUOL leads
Gross Margin
86%APPF
72%DUOL
check_circleAPPF leads
FCF Margin
11.9%APPF
35.0%DUOL
check_circleDUOL leads
Operating Margin
16.6%APPF
13.1%DUOL
check_circleAPPF leads
NRR
—APPF
—DUOL
Metric
Rule of 40Efficiency score
APPF
33.4
DUOL
74.9check_circle
Revenue GrowthYoY
APPF
21.5%
DUOL
39.9%check_circle
Gross Margin% of revenue
APPF
86%check_circle
DUOL
72%
FCF MarginFree cash flow
APPF
11.9%
DUOL
35.0%check_circle
Operating MarginGAAP
APPF
16.6%check_circle
DUOL
13.1%
NRRNet retention
APPF
N/A
DUOL
N/A
EV / RevenueValuation multiple
APPF
6.5x
DUOL
4.8xcheck_circle
Market CapUSD
APPF
$6.3Bcheck_circle
DUOL
$5.8B
ARR GrowthYoY
APPF
N/A
DUOL
N/A
CAC PaybackMonths to recover
APPF
N/A
DUOL
N/A
insights
Analysis
As of Q1 2026, AppFolio, Inc. trades at 6.5x EV/Revenue versus Duolingo, Inc. at 4.8x. On the Rule of 40, AppFolio, Inc. scores 33.4 compared to Duolingo, Inc.'s 74.9, placing Duolingo, Inc. ahead in operating efficiency. Gross margins stand at AppFolio, Inc. 86% vs Duolingo, Inc. 72%.
Sector Context
Both companies operate in the Vertical SaaS sector. The median columns above show where each company stands relative to their peers.