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Side-by-side financial comparison of APPFOLIO INC (APPF) and FOSTER L B CO (FSTR). Click either name above to swap in a different company.

APPFOLIO INC is the larger business by last-quarter revenue ($262.2M vs $160.4M, roughly 1.6× FOSTER L B CO). APPFOLIO INC runs the higher net margin — 16.2% vs 1.5%, a 14.7% gap on every dollar of revenue. On growth, FOSTER L B CO posted the faster year-over-year revenue change (25.1% vs 20.4%). Over the past eight quarters, APPFOLIO INC's revenue compounded faster (15.3% CAGR vs 13.6%).

AppFolio, Inc. is an American company founded in 2006 that offers software-as-a-service (SaaS) applications and services to the real estate industry.

Foster L B Co. is a U.S.-headquartered industrial manufacturing firm that develops, produces and distributes engineered access solutions, construction components, and rail infrastructure products. It serves commercial construction, transportation, and industrial end markets across North America and selected international regions.

APPF vs FSTR — Head-to-Head

Bigger by revenue
APPF
APPF
1.6× larger
APPF
$262.2M
$160.4M
FSTR
Growing faster (revenue YoY)
FSTR
FSTR
+4.7% gap
FSTR
25.1%
20.4%
APPF
Higher net margin
APPF
APPF
14.7% more per $
APPF
16.2%
1.5%
FSTR
Faster 2-yr revenue CAGR
APPF
APPF
Annualised
APPF
15.3%
13.6%
FSTR

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
APPF
APPF
FSTR
FSTR
Revenue
$262.2M
$160.4M
Net Profit
$42.4M
$2.4M
Gross Margin
19.7%
Operating Margin
19.4%
4.9%
Net Margin
16.2%
1.5%
Revenue YoY
20.4%
25.1%
Net Profit YoY
35.2%
1098.3%
EPS (diluted)
$1.18
$0.22

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
APPF
APPF
FSTR
FSTR
Q1 26
$262.2M
Q4 25
$248.2M
$160.4M
Q3 25
$249.4M
$138.3M
Q2 25
$235.6M
$143.6M
Q1 25
$217.7M
$97.8M
Q4 24
$203.7M
$128.2M
Q3 24
$205.7M
$137.5M
Q2 24
$197.4M
$140.8M
Net Profit
APPF
APPF
FSTR
FSTR
Q1 26
$42.4M
Q4 25
$39.9M
$2.4M
Q3 25
$33.6M
$4.4M
Q2 25
$36.0M
$2.9M
Q1 25
$31.4M
$-2.1M
Q4 24
$102.7M
$-242.0K
Q3 24
$33.0M
$35.9M
Q2 24
$29.7M
$2.8M
Gross Margin
APPF
APPF
FSTR
FSTR
Q1 26
Q4 25
19.7%
Q3 25
22.5%
Q2 25
21.5%
Q1 25
20.6%
Q4 24
22.3%
Q3 24
23.8%
Q2 24
21.7%
Operating Margin
APPF
APPF
FSTR
FSTR
Q1 26
19.4%
Q4 25
17.6%
4.9%
Q3 25
14.1%
6.0%
Q2 25
17.2%
5.3%
Q1 25
15.5%
-2.0%
Q4 24
11.3%
2.4%
Q3 24
20.7%
5.3%
Q2 24
18.3%
3.2%
Net Margin
APPF
APPF
FSTR
FSTR
Q1 26
16.2%
Q4 25
16.1%
1.5%
Q3 25
13.5%
3.1%
Q2 25
15.3%
2.0%
Q1 25
14.4%
-2.2%
Q4 24
50.4%
-0.2%
Q3 24
16.0%
26.1%
Q2 24
15.0%
2.0%
EPS (diluted)
APPF
APPF
FSTR
FSTR
Q1 26
$1.18
Q4 25
$1.10
$0.22
Q3 25
$0.93
$0.40
Q2 25
$0.99
$0.27
Q1 25
$0.86
$-0.20
Q4 24
$2.79
$-0.04
Q3 24
$0.90
$3.27
Q2 24
$0.81
$0.26

Balance Sheet & Financial Strength

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

Metric
APPF
APPF
FSTR
FSTR
Cash + ST InvestmentsLiquidity on hand
$147.4M
$4.3M
Total DebtLower is stronger
$42.6M
Stockholders' EquityBook value
$470.2M
$175.3M
Total Assets
$580.6M
$330.4M
Debt / EquityLower = less leverage
0.24×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
APPF
APPF
FSTR
FSTR
Q1 26
$147.4M
Q4 25
$107.0M
$4.3M
Q3 25
$76.1M
$3.4M
Q2 25
$73.5M
$4.2M
Q1 25
$56.9M
$2.6M
Q4 24
$42.5M
$2.5M
Q3 24
$62.4M
$3.1M
Q2 24
$59.6M
$4.0M
Total Debt
APPF
APPF
FSTR
FSTR
Q1 26
Q4 25
$42.6M
Q3 25
$58.6M
Q2 25
$81.4M
Q1 25
$82.3M
Q4 24
$46.8M
Q3 24
$68.4M
Q2 24
$87.0M
Stockholders' Equity
APPF
APPF
FSTR
FSTR
Q1 26
$470.2M
Q4 25
$542.6M
$175.3M
Q3 25
$498.9M
$174.8M
Q2 25
$455.6M
$174.4M
Q1 25
$462.1M
$170.8M
Q4 24
$519.3M
$178.3M
Q3 24
$412.8M
$181.9M
Q2 24
$371.4M
$147.1M
Total Assets
APPF
APPF
FSTR
FSTR
Q1 26
$580.6M
Q4 25
$689.0M
$330.4M
Q3 25
$640.5M
$333.9M
Q2 25
$567.4M
$349.9M
Q1 25
$564.7M
$342.8M
Q4 24
$626.7M
$334.6M
Q3 24
$523.3M
$344.5M
Q2 24
$479.3M
$333.3M
Debt / Equity
APPF
APPF
FSTR
FSTR
Q1 26
Q4 25
0.24×
Q3 25
0.33×
Q2 25
0.47×
Q1 25
0.48×
Q4 24
0.26×
Q3 24
0.38×
Q2 24
0.59×

Cash Flow & Capital Efficiency

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

Metric
APPF
APPF
FSTR
FSTR
Operating Cash FlowLast quarter
$34.3M
$22.2M
Free Cash FlowOCF − Capex
$19.8M
FCF MarginFCF / Revenue
12.3%
Capex IntensityCapex / Revenue
1.5%
Cash ConversionOCF / Net Profit
0.81×
9.18×
TTM Free Cash FlowTrailing 4 quarters
$25.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
APPF
APPF
FSTR
FSTR
Q1 26
$34.3M
Q4 25
$65.0M
$22.2M
Q3 25
$86.0M
$29.2M
Q2 25
$52.6M
$10.4M
Q1 25
$38.5M
$-26.1M
Q4 24
$36.6M
$24.3M
Q3 24
$57.8M
$24.7M
Q2 24
$50.9M
$-5.0M
Free Cash Flow
APPF
APPF
FSTR
FSTR
Q1 26
Q4 25
$63.7M
$19.8M
Q3 25
$84.7M
$26.4M
Q2 25
$52.4M
$7.7M
Q1 25
$38.2M
$-28.7M
Q4 24
$36.4M
$22.3M
Q3 24
$57.4M
$21.7M
Q2 24
$50.8M
$-7.0M
FCF Margin
APPF
APPF
FSTR
FSTR
Q1 26
Q4 25
25.7%
12.3%
Q3 25
34.0%
19.1%
Q2 25
22.2%
5.4%
Q1 25
17.6%
-29.4%
Q4 24
17.9%
17.4%
Q3 24
27.9%
15.8%
Q2 24
25.8%
-5.0%
Capex Intensity
APPF
APPF
FSTR
FSTR
Q1 26
Q4 25
0.5%
1.5%
Q3 25
0.5%
2.0%
Q2 25
0.1%
1.9%
Q1 25
0.1%
2.6%
Q4 24
0.1%
1.5%
Q3 24
0.2%
2.2%
Q2 24
0.0%
1.5%
Cash Conversion
APPF
APPF
FSTR
FSTR
Q1 26
0.81×
Q4 25
1.63×
9.18×
Q3 25
2.56×
6.70×
Q2 25
1.46×
3.61×
Q1 25
1.23×
Q4 24
0.36×
Q3 24
1.75×
0.69×
Q2 24
1.71×
-1.74×

Financial Flow Comparison

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

Revenue Breakdown by Segment

APPF
APPF

Value Added Services$201.4M77%
Subscription Services$58.2M22%

FSTR
FSTR

Rail Technologies And Services Segment$98.0M61%
Over Time Output Method$26.3M16%
Services$19.4M12%
Rail Technologies Products$10.0M6%
Over Time Input Method$8.3M5%

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