Retain Cards: KI-Karteikarten vs Duolingo: Language Lessons
Revenue, downloads, ratings and category context for two iOS apps. Figures are estimates and should be read as ranges, not exact totals.
Retain Cards: KI-KarteikartenRetain Labs GmbH - Education
Duolingo: Language LessonsDuolingo - Education| Metric | Retain Cards: KI-Karteikarten | Duolingo: Language Lessons | Readout |
|---|---|---|---|
| Estimated revenue / mo | $*** - opens with trial | ~$48M | Duolingo: Language Lessons |
| Revenue band | $*** - opens with trial | $48M (point est.) | Use range + confidence |
| Estimated downloads / mo | $*** - opens with trial | ~5.0M | Duolingo: Language Lessons |
| Download band | $*** - opens with trial | 5.0M (point est.) | Use range + confidence |
| Rating | - | 4.73 | Duolingo: Language Lessons |
| Rating count | - | 5.3M | Duolingo: Language Lessons |
| Tracked keywords | — | 15 | Duolingo: Language Lessons |
| Category | Education | Education | Same market |
Which app is bigger?
Retain Cards: KI-Karteikarten and Duolingo: Language Lessons are compared inside Education with monthly revenue, downloads, rating, review volume, keyword footprint, category placement and range context. Duolingo: Language Lessons leads on monthly downloads in the current readout, and Duolingo: Language Lessons wins the revenue readout (the exact figures open with the paid plan), Duolingo: Language Lessons wins demand, Duolingo: Language Lessons has deeper review volume, and Duolingo: Language Lessons has the larger tracked keyword footprint. The better app depends on the job: choose the revenue leader when you need monetization proof, choose the download leader when reach matters, and choose the higher-rated or deeper-reviewed app when market trust is the constraint. Read both ranges rather than only the midpoint, then open the category hub and related collections to see whether this pair is an outlier or a normal category pattern.