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Side-by-side financial comparison of Duolingo, Inc. (DUOL) and ONTO INNOVATION INC. (ONTO). Click either name above to swap in a different company.

Duolingo, Inc. is the larger business by last-quarter revenue ($295.5M vs $218.2M, roughly 1.4× ONTO INNOVATION INC.). ONTO INNOVATION INC. runs the higher net margin — 12.9% vs 11.9%, a 1.1% gap on every dollar of revenue. On growth, Duolingo, Inc. posted the faster year-over-year revenue change (27.0% vs -13.5%). Duolingo, Inc. produced more free cash flow last quarter ($103.0M vs $82.0M). Over the past eight quarters, Duolingo, Inc.'s revenue compounded faster (28.7% CAGR vs 2.6%).

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.

Onto Innovation Inc. is an American semiconductor company formed in 2019 from the merger of Rudolph Technologies, Inc. and Nanometrics Incorporated. It is a provider of process and process control equipment and software for microelectronic manufacturing industries.

DUOL vs ONTO — Head-to-Head

Bigger by revenue
DUOL
DUOL
1.4× larger
DUOL
$295.5M
$218.2M
ONTO
Growing faster (revenue YoY)
DUOL
DUOL
+40.5% gap
DUOL
27.0%
-13.5%
ONTO
Higher net margin
ONTO
ONTO
1.1% more per $
ONTO
12.9%
11.9%
DUOL
More free cash flow
DUOL
DUOL
$21.0M more FCF
DUOL
$103.0M
$82.0M
ONTO
Faster 2-yr revenue CAGR
DUOL
DUOL
Annualised
DUOL
28.7%
2.6%
ONTO

Income Statement — Q1 FY2026 vs Q3 FY2025

Metric
DUOL
DUOL
ONTO
ONTO
Revenue
$295.5M
$218.2M
Net Profit
$35.1M
$28.2M
Gross Margin
55.5%
50.7%
Operating Margin
8.0%
10.9%
Net Margin
11.9%
12.9%
Revenue YoY
27.0%
-13.5%
Net Profit YoY
24.0%
-46.8%
EPS (diluted)
$0.72
$0.57

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
ONTO
ONTO
Q1 26
$295.5M
Q4 25
$282.9M
Q3 25
$271.7M
$218.2M
Q2 25
$252.3M
$253.6M
Q1 25
$230.7M
$266.6M
Q4 24
$209.6M
$263.9M
Q3 24
$192.6M
$252.2M
Q2 24
$178.3M
$242.3M
Net Profit
DUOL
DUOL
ONTO
ONTO
Q1 26
$35.1M
Q4 25
$42.0M
Q3 25
$292.2M
$28.2M
Q2 25
$44.8M
$33.9M
Q1 25
$35.1M
$64.1M
Q4 24
$13.9M
$48.8M
Q3 24
$23.4M
$53.1M
Q2 24
$24.4M
$52.9M
Gross Margin
DUOL
DUOL
ONTO
ONTO
Q1 26
55.5%
Q4 25
72.8%
Q3 25
72.5%
50.7%
Q2 25
72.4%
48.2%
Q1 25
71.1%
53.7%
Q4 24
71.9%
50.2%
Q3 24
72.9%
54.1%
Q2 24
73.4%
52.9%
Operating Margin
DUOL
DUOL
ONTO
ONTO
Q1 26
8.0%
Q4 25
15.4%
Q3 25
12.9%
10.9%
Q2 25
13.2%
12.7%
Q1 25
10.2%
23.7%
Q4 24
6.6%
16.1%
Q3 24
7.0%
21.0%
Q2 24
10.5%
20.2%
Net Margin
DUOL
DUOL
ONTO
ONTO
Q1 26
11.9%
Q4 25
14.8%
Q3 25
107.5%
12.9%
Q2 25
17.8%
13.4%
Q1 25
15.2%
24.0%
Q4 24
6.6%
18.5%
Q3 24
12.1%
21.0%
Q2 24
13.7%
21.9%
EPS (diluted)
DUOL
DUOL
ONTO
ONTO
Q1 26
$0.72
Q4 25
$0.99
Q3 25
$5.95
$0.57
Q2 25
$0.91
$0.69
Q1 25
$0.72
$1.30
Q4 24
$0.31
$0.98
Q3 24
$0.49
$1.07
Q2 24
$0.51
$1.07

Balance Sheet & Financial Strength

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

Metric
DUOL
DUOL
ONTO
ONTO
Cash + ST InvestmentsLiquidity on hand
$1.1B
$603.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.3B
$2.0B
Total Assets
$2.0B
$2.2B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DUOL
DUOL
ONTO
ONTO
Q1 26
$1.1B
Q4 25
$1.0B
Q3 25
$1.0B
$603.1M
Q2 25
$976.2M
$217.5M
Q1 25
$884.0M
$203.7M
Q4 24
$785.8M
$212.9M
Q3 24
$854.4M
$188.7M
Q2 24
$888.2M
$172.6M
Stockholders' Equity
DUOL
DUOL
ONTO
ONTO
Q1 26
$1.3B
Q4 25
$1.3B
Q3 25
$1.3B
$2.0B
Q2 25
$977.0M
$2.0B
Q1 25
$893.8M
$1.9B
Q4 24
$824.5M
$1.9B
Q3 24
$822.5M
$1.9B
Q2 24
$766.9M
$1.8B
Total Assets
DUOL
DUOL
ONTO
ONTO
Q1 26
$2.0B
Q4 25
$2.0B
Q3 25
$1.9B
$2.2B
Q2 25
$1.5B
$2.1B
Q1 25
$1.4B
$2.1B
Q4 24
$1.3B
$2.1B
Q3 24
$1.2B
$2.1B
Q2 24
$1.1B
$2.0B

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
ONTO
ONTO
Operating Cash FlowLast quarter
$105.6M
$83.4M
Free Cash FlowOCF − Capex
$103.0M
$82.0M
FCF MarginFCF / Revenue
34.9%
37.6%
Capex IntensityCapex / Revenue
0.6%
Cash ConversionOCF / Net Profit
3.01×
2.95×
TTM Free Cash FlowTrailing 4 quarters
$368.4M
$261.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DUOL
DUOL
ONTO
ONTO
Q1 26
$105.6M
Q4 25
$107.3M
Q3 25
$84.2M
$83.4M
Q2 25
$90.7M
$57.9M
Q1 25
$105.6M
$92.0M
Q4 24
$83.3M
$56.0M
Q3 24
$56.3M
$67.2M
Q2 24
$62.4M
$65.3M
Free Cash Flow
DUOL
DUOL
ONTO
ONTO
Q1 26
$103.0M
Q4 25
$96.6M
Q3 25
$79.4M
$82.0M
Q2 25
$89.5M
$44.2M
Q1 25
$104.3M
$83.7M
Q4 24
$81.4M
$51.4M
Q3 24
$53.1M
$59.2M
Q2 24
$56.8M
$53.0M
FCF Margin
DUOL
DUOL
ONTO
ONTO
Q1 26
34.9%
Q4 25
34.1%
Q3 25
29.2%
37.6%
Q2 25
35.5%
17.4%
Q1 25
45.2%
31.4%
Q4 24
38.8%
19.5%
Q3 24
27.6%
23.5%
Q2 24
31.9%
21.9%
Capex Intensity
DUOL
DUOL
ONTO
ONTO
Q1 26
Q4 25
3.8%
Q3 25
1.8%
0.6%
Q2 25
0.5%
5.4%
Q1 25
0.6%
3.1%
Q4 24
0.9%
1.8%
Q3 24
1.7%
3.2%
Q2 24
3.1%
5.1%
Cash Conversion
DUOL
DUOL
ONTO
ONTO
Q1 26
3.01×
Q4 25
2.56×
Q3 25
0.29×
2.95×
Q2 25
2.02×
1.71×
Q1 25
3.01×
1.44×
Q4 24
5.99×
1.15×
Q3 24
2.41×
1.27×
Q2 24
2.56×
1.23×

Financial Flow Comparison

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

Revenue Breakdown by Segment

DUOL
DUOL

Bookings$283.5M96%
Other$12.0M4%

ONTO
ONTO

Systems And Software Revenue$173.8M80%
Parts Revenue$23.9M11%
Service Revenue$20.5M9%

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