Top Reference apps in United States 🇺🇸

iOSJune 2, 2026· Snapshot dated View all snapshotsMethodology

As of June 2, 2026, Merlin Bird ID by Cornell Lab is the #1 Reference app in United States on iOS.

iOSAndroid
#App / PublisherIntel
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  28. 2811
    BibleSpark

    宗琦 贾

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  46. 4612
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What changed

Movement between the previous day and June 2, 2026.

Methodology

Rankings are pulled daily from the iOS store charts for United States. We snapshot the top entries each day and compute day-over-day change relative to the prior snapshot. See our full methodology for data sources, refresh cadences, and quality filters.

Frequently asked questions

What is the #1 Reference app in United States on iOS?
As of June 2, 2026, Merlin Bird ID by Cornell Lab is the #1 Reference app in United States on iOS, based on the public iOS chart rankings Marlvel tracks daily.
How often are these rankings updated?
Marlvel snapshots the iOS charts for United States every day and computes day-over-day movement. The "Current" page always reflects the latest snapshot; dated archive pages preserve each day's top 50.
Where does Marlvel's ranking data come from?
Rankings are pulled from the public iOS store charts for United States. See our methodology for data sources, refresh cadence, and the quality filters applied before a ranking is indexed.

Related rankings

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by the apps, publishers, or platforms referenced. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Data licensed under CC-BY-NC 4.0