About this app
Finally, a sample size calculator for marketers and market researchers who have iPhones! Actionable Research’s Sample Size Calculator keeps it simple, yet powerful: * Calculates confidence intervals when universe and gathered sample sizes are known at the 90%, 95% and 99% confidence level * Calculates sample size requirements when universe and confidence intervals are known at the 90%, 95% and 99% confidence level * Customizable startup screen and skins, depending on your industry focus (Medical Sciences and Dental, Digital Technology or Business Services and Consumer) * Explanation of terms and research concepts
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
- First observed Sep 11, 2026 · 11:27 PM Free