AppLovin vs. Kratos Defense: Which Technology Stock Is a Better Buy in 2026?

Investors are weighing high-margin software growth against the stability of national security contracts. Deciding between AppLovin (NASDAQ:APP) and Kratos Defense & Security Solutions (NASDAQ:KTOS) requires balancing software scalability with aerospace engineering.

AppLovin specializes in AI-driven advertising technology that helps developers monetize their user bases. Kratos focuses on high-tech defense hardware, including unmanned systems and satellite communications. Both companies serve growing markets, but they offer vastly different risk profiles and financial trajectories for long-term investors looking for software or hardware exposure.

The case for AppLovin

AppLovin provides an end-to-end platform for mobile app advertisers and publishers to reach and monetize global audiences. The company utilizes its Axon engine to optimize user acquisition while providing in-app bidding and marketing measurement tools. Following the June 2025 divestiture of its own mobile gaming studio, the business now focuses exclusively on high-margin advertising technology and AI-driven growth across the mobile ecosystem and connected TV markets.

In FY 2025, revenue reached nearly $5.5 billion, marking an increase of approximately 17% over the prior year. This growth was accompanied by a robust net income of roughly $3.3 billion, which compares favorably to the $1.6 billion earned in 2024. These figures represent a net margin of close to 61%, a dramatic increase that reflects the company's successful transition to a pure-play software-as-a-service model focused on efficiency.

As of its December 2025 balance sheet, the company's debt-to-equity ratio is roughly 1.7x. This metric indicates that the company carries $1.70 in total debt for every dollar of shareholder equity. However, the company generated more than $3.9 billion in free cash flow, which is cash from operations minus capital expenditures. That amount exceeds its total debt of $3.52 billion. This healthy cash generation allows the firm to invest in further platform enhancements and potential strategic acquisitions.

The case for Kratos Defense & Security Solutions

Kratos develops specialized technology and hardware for defense and national security markets, ranging from hypersonic systems to satellite communications. The company frequently acts as a prime contractor for the U.S. Air Force, or as a subcontractor for Northrop Grumman Corp (NYSE:NOC) and Lockheed Martin Corp (NYSE:LMT). Because 68% of its revenue comes from U.S. government contracts, customer concentration like this adds a layer of risk to the business. However, that is common in the aerospace industry.

In FY 2025, revenue reached close to $1.35 billion, representing growth of about 18.5% over the previous year. This performance highlights the company's steady progress among defense stocks as it captures more government spending on unmanned systems and next-generation target drones. Net income for the period was $22 million, resulting in a net margin of nearly 1.6%, which is up from 1.4% in the previous fiscal year.

As of the December 2025 balance sheet, Kratos maintains a conservative debt-to-equity ratio of roughly 0.1x. This indicates a low level of total debt relative to the company's equity base, providing significant financial flexibility for future research and development. The current ratio is close to 0.1x, though the company reported negative free cash flow of approximately $137.4 million, which represents the difference between cash from operations and capital expenditures during a heavy investment phase.

Risk profile comparison

AppLovin faces significant risks related to its dependence on third-party platform policies, specifically those set by Alphabet Inc (NASDAQ:GOOGL) and Apple Inc (NASDAQ:AAPL). Changes to data privacy rules can impair the effectiveness of its advertising algorithms and reduce overall revenue. Furthermore, the company faces intense competition from larger tech giants like Meta Platforms (NASDAQ:META) and Amazon.com Inc (NASDAQ:AMZN), as well as specialized players like Unity Software Inc (NYSE:U).

Kratos is heavily reliant on U.S. government fiscal policy and budget appropriations, which can lead to unpredictable revenue cycles. Approximately 69% of its revenue is derived from fixed-price contracts, meaning any cost overruns must be absorbed by the company. Additionally, the firm faces operational risks related to its complex manufacturing processes and facilities, including those located in Israel, which could be affected by geopolitical conflicts.

Valuation comparison

AppLovin offers a significantly lower Forward P/E despite higher growth, while Kratos presents a lower P/S ratio that reflects its industrial cost structure.

Valuation metrics sourced from Financial Modeling Prep (FMP) and may differ from other data providers.

Which stock would I buy in 2026?

Kratos appears to be on the cusp of becoming an increasingly valuable Pentagon contractor. The business's expertise in counter-drone systems and the ability to make less expensive missiles dovetail with the U.S. military's need to adapt to the challenges of the ongoing Iran war.

Kratos' hypersonic business, which generated approximately $200 million in revenue in 2025, is tracking to double to $400 million in the current year and increase to at least $700 million in 2027, according to management. It is positioned to become Kratos' largest business with significantly increased government funding in the hypersonic area expected for the foreseeable future.

For the current third quarter, Kratos management sees total company sales rising around 22% to $470 million.

AppLovin's platform of advertising solutions allow mobile video game applications, websites, internet content publishers, and advertisers to monetize and grow their audiences. The company's core products is a real-time, competitive advertising auction, optimizing a publisher's advertising inventory to enable user conversion and acquisition.

AppLovin shares wobbled this spring, like a lot of other software businesses, on fears that AI will destroy the need for businesses like AppLovin. But the company has proven resilient. The business was able to pivot when Apple and Google imposed strict privacy parameters on app makers, gutting AppLovin's original consumer identification method by offering free games in exchange for lots of data about users and their devices. The company now uses AI to perform much the same consumer identification, allowing it to sell valuable advertising targeting services to clients.

It's a growing business: second-quarter 2026 sales rose more than 50% to $1.92 billion (though it came in slightly below analyst consensus). Net income was $1.3 billion. For 2026, Wall Street foresees a 47% jump in revenue to $8.1 billion, with an even better 62% jump in net income.

AppLovin may be faster growing, but war is good business for defense contractors. Kratos has a very reliable client in the Pentagon, while AppLovin continues to face risks that could decimate its business. For long-term growth, go with Kratos.

Brendan Coffey has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Alphabet, Amazon, Apple, Kratos Defense & Security Solutions, Meta Platforms, and Unity Software. The Motley Fool recommends Lockheed Martin. The Motley Fool has a disclosure policy.