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 16× larger than Duolingo by market cap; Duolingo trades at the lower P/E (16.4 vs 23.7); year to date, Duolingo leads (−16.3% vs −55.7%).
Side by side
| APP | DUOL | |
|---|---|---|
| Market cap | $105B | $6.7B |
| Price | $310.54 | $146.04 |
| Today | +4.0% | −0.5% |
| Return YTD | −55.7% | −16.3% |
| Return 1Y | −32.4% | −55.8% |
| P/E | 23.7 | 16.4 |
| P/S | 15.3 | 5.9 |
| P/B | 33.1 | 4.8 |
Data as of 2026-08-26 · updates daily after U.S. close
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.
See where APP and DUOL sit in the full AI & digital infrastructure map: every segment from suppliers to end markets.Open the AI value chain →