249+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our riemann sums calculator list covers 249+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (2) | No | No | Aug 2026 | |
| 2 |  | Free | 4.9★ (409K) | Yes | No | Sep 2026 | |
| 3 |  | Free | 4.7★ (61K) | No | No | Sep 2026 | |
| 4 |  | Free | 4.6★ (36K) | Yes | Yes | Sep 2026 | |
| 5 |  | Free | 4.4★ (3.6K) | Yes | No | Sep 2026 | |
| 6 |  | Free | 4.6★ (10K) | Yes | Yes | Sep 2026 | |
| 7 |  | Free | — | No | No | May 2026 | |
| 8 |  | $5.99 | 4.7★ (6.3K) | No | Yes | Sep 2026 |
This app approximates integrals using Riemann summation techniques. Input your function and range, then choose from four methods: Left, Right, Middle, or Trapezoid. It supports common functions and constants.
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
