vs

Side-by-side financial comparison of Duolingo, Inc. (DUOL) and Kodiak Gas Services, Inc. (KGS). Click either name above to swap in a different company.

Kodiak Gas Services, Inc. is the larger business by last-quarter revenue ($332.9M vs $282.9M, roughly 1.2× Duolingo, Inc.). Duolingo, Inc. runs the higher net margin — 14.8% vs 7.4%, a 7.4% gap on every dollar of revenue. On growth, Duolingo, Inc. posted the faster year-over-year revenue change (35.0% vs 7.5%). Kodiak Gas Services, Inc. produced more free cash flow last quarter ($142.0M vs $96.6M). Over the past eight quarters, Duolingo, Inc.'s revenue compounded faster (29.9% CAGR vs 24.3%).

Duolingo, Inc. is a leading global edtech firm operating a gamified language learning platform. It offers free and premium self-paced courses for over 40 languages, plus language certification, math learning tools, and literacy programs, serving individual learners, schools and corporate clients worldwide.

Kodiak Gas Services, Inc. is a leading natural gas compression services provider operating primarily across North America. It serves upstream and midstream energy sector clients, offering custom compression equipment, regular maintenance, and operational support to optimize natural gas gathering, processing, and transportation workflows for onshore oil and gas production operations.

DUOL vs KGS — Head-to-Head

Bigger by revenue
KGS
KGS
1.2× larger
KGS
$332.9M
$282.9M
DUOL
Growing faster (revenue YoY)
DUOL
DUOL
+27.4% gap
DUOL
35.0%
7.5%
KGS
Higher net margin
DUOL
DUOL
7.4% more per $
DUOL
14.8%
7.4%
KGS
More free cash flow
KGS
KGS
$45.5M more FCF
KGS
$142.0M
$96.6M
DUOL
Faster 2-yr revenue CAGR
DUOL
DUOL
Annualised
DUOL
29.9%
24.3%
KGS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
DUOL
DUOL
KGS
KGS
Revenue
$282.9M
$332.9M
Net Profit
$42.0M
$24.6M
Gross Margin
72.8%
Operating Margin
15.4%
26.1%
Net Margin
14.8%
7.4%
Revenue YoY
35.0%
7.5%
Net Profit YoY
201.7%
29.0%
EPS (diluted)
$0.99
$0.30

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
DUOL
DUOL
KGS
KGS
Q4 25
$282.9M
$332.9M
Q3 25
$271.7M
$322.7M
Q2 25
$252.3M
$322.8M
Q1 25
$230.7M
$329.6M
Q4 24
$209.6M
$309.5M
Q3 24
$192.6M
$324.6M
Q2 24
$178.3M
$309.7M
Q1 24
$167.6M
$215.5M
Net Profit
DUOL
DUOL
KGS
KGS
Q4 25
$42.0M
$24.6M
Q3 25
$292.2M
$-14.0M
Q2 25
$44.8M
$39.5M
Q1 25
$35.1M
$30.4M
Q4 24
$13.9M
$19.1M
Q3 24
$23.4M
$-5.6M
Q2 24
$24.4M
$6.2M
Q1 24
$27.0M
$30.2M
Gross Margin
DUOL
DUOL
KGS
KGS
Q4 25
72.8%
Q3 25
72.5%
Q2 25
72.4%
Q1 25
71.1%
Q4 24
71.9%
Q3 24
72.9%
37.5%
Q2 24
73.4%
36.5%
Q1 24
73.0%
39.4%
Operating Margin
DUOL
DUOL
KGS
KGS
Q4 25
15.4%
26.1%
Q3 25
12.9%
19.9%
Q2 25
13.2%
30.9%
Q1 25
10.2%
27.1%
Q4 24
6.6%
22.3%
Q3 24
7.0%
20.4%
Q2 24
10.5%
17.5%
Q1 24
9.8%
27.9%
Net Margin
DUOL
DUOL
KGS
KGS
Q4 25
14.8%
7.4%
Q3 25
107.5%
-4.3%
Q2 25
17.8%
12.2%
Q1 25
15.2%
9.2%
Q4 24
6.6%
6.2%
Q3 24
12.1%
-1.7%
Q2 24
13.7%
2.0%
Q1 24
16.1%
14.0%
EPS (diluted)
DUOL
DUOL
KGS
KGS
Q4 25
$0.99
$0.30
Q3 25
$5.95
$-0.17
Q2 25
$0.91
$0.43
Q1 25
$0.72
$0.33
Q4 24
$0.31
$0.18
Q3 24
$0.49
$-0.07
Q2 24
$0.51
$0.06
Q1 24
$0.57
$0.39

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
DUOL
DUOL
KGS
KGS
Cash + ST InvestmentsLiquidity on hand
$1.0B
$3.2M
Total DebtLower is stronger
$2.6B
Stockholders' EquityBook value
$1.3B
$1.2B
Total Assets
$2.0B
$4.3B
Debt / EquityLower = less leverage
2.12×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DUOL
DUOL
KGS
KGS
Q4 25
$1.0B
$3.2M
Q3 25
$1.0B
$724.0K
Q2 25
$976.2M
$5.4M
Q1 25
$884.0M
$1.9M
Q4 24
$785.8M
$4.8M
Q3 24
$854.4M
$7.4M
Q2 24
$888.2M
$3.9M
Q1 24
$829.7M
$9.3M
Total Debt
DUOL
DUOL
KGS
KGS
Q4 25
$2.6B
Q3 25
$2.6B
Q2 25
$2.5B
Q1 25
$2.6B
Q4 24
$2.6B
Q3 24
$2.6B
Q2 24
$2.5B
Q1 24
Stockholders' Equity
DUOL
DUOL
KGS
KGS
Q4 25
$1.3B
$1.2B
Q3 25
$1.3B
$1.3B
Q2 25
$977.0M
$1.3B
Q1 25
$893.8M
$1.4B
Q4 24
$824.5M
$1.4B
Q3 24
$822.5M
$1.4B
Q2 24
$766.9M
$1.5B
Q1 24
$711.1M
$1.1B
Total Assets
DUOL
DUOL
KGS
KGS
Q4 25
$2.0B
$4.3B
Q3 25
$1.9B
$4.4B
Q2 25
$1.5B
$4.4B
Q1 25
$1.4B
$4.4B
Q4 24
$1.3B
$4.4B
Q3 24
$1.2B
$4.5B
Q2 24
$1.1B
$4.4B
Q1 24
$1.1B
$3.3B
Debt / Equity
DUOL
DUOL
KGS
KGS
Q4 25
2.12×
Q3 25
2.08×
Q2 25
1.89×
Q1 25
1.91×
Q4 24
1.88×
Q3 24
1.86×
Q2 24
1.71×
Q1 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
DUOL
DUOL
KGS
KGS
Operating Cash FlowLast quarter
$107.3M
$194.9M
Free Cash FlowOCF − Capex
$96.6M
$142.0M
FCF MarginFCF / Revenue
34.1%
42.7%
Capex IntensityCapex / Revenue
3.8%
15.9%
Cash ConversionOCF / Net Profit
2.56×
7.91×
TTM Free Cash FlowTrailing 4 quarters
$369.7M
$284.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DUOL
DUOL
KGS
KGS
Q4 25
$107.3M
$194.9M
Q3 25
$84.2M
$113.4M
Q2 25
$90.7M
$177.2M
Q1 25
$105.6M
$114.3M
Q4 24
$83.3M
$118.5M
Q3 24
$56.3M
$36.9M
Q2 24
$62.4M
$121.1M
Q1 24
$83.5M
$51.5M
Free Cash Flow
DUOL
DUOL
KGS
KGS
Q4 25
$96.6M
$142.0M
Q3 25
$79.4M
$10.9M
Q2 25
$89.5M
$94.6M
Q1 25
$104.3M
$36.8M
Q4 24
$81.4M
$45.2M
Q3 24
$53.1M
$-49.7M
Q2 24
$56.8M
$4.0M
Q1 24
$82.1M
$-8.6M
FCF Margin
DUOL
DUOL
KGS
KGS
Q4 25
34.1%
42.7%
Q3 25
29.2%
3.4%
Q2 25
35.5%
29.3%
Q1 25
45.2%
11.2%
Q4 24
38.8%
14.6%
Q3 24
27.6%
-15.3%
Q2 24
31.9%
1.3%
Q1 24
49.0%
-4.0%
Capex Intensity
DUOL
DUOL
KGS
KGS
Q4 25
3.8%
15.9%
Q3 25
1.8%
31.7%
Q2 25
0.5%
25.6%
Q1 25
0.6%
23.5%
Q4 24
0.9%
23.7%
Q3 24
1.7%
26.7%
Q2 24
3.1%
37.8%
Q1 24
0.8%
27.9%
Cash Conversion
DUOL
DUOL
KGS
KGS
Q4 25
2.56×
7.91×
Q3 25
0.29×
Q2 25
2.02×
4.49×
Q1 25
3.01×
3.76×
Q4 24
5.99×
6.21×
Q3 24
2.41×
Q2 24
2.56×
19.44×
Q1 24
3.10×
1.70×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

DUOL
DUOL

License And Service$242.3M86%
Advertising$20.2M7%
English Test$10.3M4%
Other$10.1M4%

KGS
KGS

Other Services$126.8M38%
Other$112.2M34%
Transferred At Point In Time$93.8M28%

Related Comparisons