AppLovinvs.Duolingo
APP vs DUOL · both in AI software & productivity, part of the AI & digital infrastructure value chain: Embeds AI models into the products and workflows we already use.
AppLovin is about 13× larger than Duolingo by market cap; Duolingo trades at the lower P/E (17.1 vs 21.0); year to date, Duolingo leads (−13.8% vs −58.4%).
Side by side
| APP | DUOL | |
|---|---|---|
| Market cap | $92.7B | $7B |
| Price | $277.04 | $149.92 |
| Today | −1.1% | −0.9% |
| Return YTD | −58.4% | −13.8% |
| Return 1Y | −55.5% | −56.5% |
| Since June 26, 2026 | −41.9% | +23.4% |
| P/E | 21.0 | 17.1 |
| P/S | 13.6 | 6.1 |
| P/B | 29.3 | 5.0 |
Data as of 2026-10-09 · updates daily after U.S. close
Since June 26, 2026: the change in the closing price, from the daily closes Sectivia records itself since that date.
The two companies
AppLovinAPP
The Axon engine decides which ad a given app user sees, and its results are among the most cited evidence that applied AI pays off in advertising.
Full APP profile →DuolingoDUOL
Language lessons on a phone, with generative AI writing much of the course content and playing the conversation partner in the paid Max tier.
Full DUOL profile →More APP & DUOL comparisons
Other head-to-heads in the AI software & productivity segment.