Search demand vs Apple's search popularity

The finding

Across the five recorded storefronts, Spearman rank correlation between Apple popularity (1–100) and search demand signal breadth is ρ = 0.30 (n = 1,000; 95% bootstrap interval 0.25 … 0.36). The recorded storefront coefficients range from 0.16 to 0.36. The interval stays above zero under the stated resampling calculation. These selected popular terms and different observation periods do not establish the relationship for all App Store searches or identify a cause.

0.6% of these popular terms show no search demand signal at all.

Limits of this comparison

• Ceiling. The recorded suggestion counts stop at 10. The 66.3% of terms at that cap cannot be ordered by suggestion count alone; the count is not a search-volume reading.
• Restricted range. Recorded popularity runs from 56 to 100, with a median of 74. The study contains selected popular terms. It does not establish how the measures relate below that range or explain the observed coefficient.
• Different periods. Popularity belongs to the week dated 2026-08-09; suggestions were observed on 2026-09-14. Those start dates are 36 days apart. This is not a comparison of measurements from the same day.

Keep historical coverage separate from this sample

In a 2025 coverage report, aso.dev counted a fall from 165,875 to 39,254 US terms above the historical score of 5 (−77.4%). Its summary gives 29 September–3 October 2025, while its table extends to 7 October. Those are the vendor’s reported coverage counts, not a Storelift measurement or a definition of today’s API. Apple’s current Insights documentation describes a 1–100 popularity field and weekly or monthly reporting periods.

The lowest recorded popularity in this 1,000-term sample is 56. No term is at or below 5, so excluding such values leaves ρ = 0.30 unchanged. The file therefore provides no comparison of terms at that historical floor.

This corpus contains published popular terms, with a minimum observed popularity of 56. It does not represent the full long tail. A term outside this sample cannot be assigned zero demand from this study.

Method and data

• Popularity: Apple's search-term popularity, week 2026-08-09.
• Search demand observation: the search demand signal for the exact term, recorded on 2026-09-14. There were 0 failed checks among the 1,000; a failed check would be excluded rather than counted as zero.
• Statistic: Spearman rank correlation with average ranks for ties; percentile bootstrap, 2,000 resamples, fixed seed — the interval is reproducible.
• Recorded storefronts: US, GB, DE, ES and TR. The study describes these five samples and their recorded periods; it does not establish current availability in another country.

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