UDBapp: Powered by Arc 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.
UDBapp: Powered by ArcUltimate Drill Book - Education
Duolingo: Language LessonsDuolingo - Education| Metric | UDBapp: Powered by Arc | Duolingo: Language Lessons | Readout |
|---|---|---|---|
| Estimated revenue / mo | $*** - opens with trial | ~$48M | Partial signal |
| 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 | 3.38 | 4.73 | Duolingo: Language Lessons |
| Rating count | 39 | 5.3M | Duolingo: Language Lessons |
| Tracked keywords | — | 15 | Duolingo: Language Lessons |
| Category | Education | Education | Same market |
Which app is bigger?
UDBapp: Powered by Arc 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, while a clean revenue readout is available only for Duolingo: Language Lessons in this pair. 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.