This app calculates the correlation coefficient between two or three sets of numerical data. It offers flexible data entry methods, including a slider and keypad, and handles missing values to compute relationships accurately.



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With an average user rating of 3.8★, the correlation coefficient category is one of the App Store's strongest. Browse all 95+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | $0.99 | — | No | No | May 2026 | |
| 2 | Free | 1.0★ (1) | No | No | May 2026 | |
| 3 | $2.99 | 4.1★ (306) | No | No | Jul 2026 | |
| 4 | Free | 4.9★ (24) | Yes | Yes | May 2026 | |
| 5 | Free | 3.7★ (3) | No | No | May 2026 | |
| 6 | Free | 5.0★ (10) | No | Yes | Jul 2026 | |
| 7 | Free | — | No | No | May 2026 | |
| 8 | Free | 4.0★ (4) | No | No | May 2026 |






This app calculates the correlation coefficient between two or three sets of numerical data. It offers flexible data entry methods, including a slider and keypad, and handles missing values to compute relationships accurately.






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Calculate standard deviation for sample or population data. Input numerical values to find standard deviation, count, sum, mean, variance, and more. Get quick statistical insights with this easy-to-use tool.